Works (234)

2019 | article

Morphological study of InGaN on GaN substrate by supersaturation (vol 508, pg 58, 2019)

JOURNAL OF CRYSTAL GROWTH.

By: Z. Liu, S. Nitta, Y. Robin, M. Kushimoto, M. Deki, Y. Honda, M. Pristovsek, Z. Sitar, H. Amano

Source: Web Of Science
Added: April 2, 2019

2019 | journal article

Multiple Epsilon-Near-Zero Resonances in Multilayered Cadmium Oxide: Designing Metamaterial-Like Optical Properties in Monolithic Materials

ACS PHOTONICS, 6(5), 1139–1145.

By: K. Kelley, E. Runnerstrom, E. Sachet, C. Shelton, E. Grimley, A. Klump, J. LeBeau, Z. Sitar ...

Source: Web Of Science
Added: June 17, 2019

2019 | journal article

Oxygen and silicon point defects in Al0.65Ga0.35N

PHYSICAL REVIEW MATERIALS, 3(5).

Source: Web Of Science
Added: June 17, 2019

2019 | journal article

Quasi-phase-matched second harmonic generation of UV light using AlN waveguides

APPLIED PHYSICS LETTERS, 114(10).

By: D. Alden, T. Troha, R. Kirste, S. Mita, Q. Guo, A. Hoffmann, M. Zgonik, R. Collazo, Z. Sitar

Source: Web Of Science
Added: April 2, 2019

2019 | journal article

Structural characteristics of m-plane AlN substrates and homoepitaxial films

JOURNAL OF CRYSTAL GROWTH, 507, 389–394.

By: M. Graziano, I. Bryan, Z. Bryan, R. Kirste, J. Tweedie, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: January 28, 2019

2019 | article

The polarization field in Al-rich AlGaN multiple quantum wells

JAPANESE JOURNAL OF APPLIED PHYSICS.

Source: Web Of Science
Added: July 29, 2019

2019 | journal article

The role of transient surface morphology on composition control in AlGaN layers and wells

APPLIED PHYSICS LETTERS, 114(3).

Source: NC State University Libraries
Added: February 11, 2019

2018 | journal article

A thermodynamic supersaturation model for the growth of aluminum gallium nitride by metalorganic chemical vapor deposition

JOURNAL OF APPLIED PHYSICS, 124(11).

Source: NC State University Libraries
Added: October 16, 2018

2018 | journal article

Doping and compensation in Al-rich AlGaN grown on single crystal AlN and sapphire by MOCVD

Applied Physics Letters, 112(6).

By: I. Bryan, Z. Bryan, S. Washiyama, P. Reddy, B. Gaddy, B. Sarkar, M. Breckenridge, Q. Guo ...

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

Improvement in detection limit for time-of-flight SIMS analysis of dopants in GaN structures

Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures, 36(3).

By: A. Klump, C. Zhou, F. Stevie, R. Collazo & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

Nitride surface chemistry influence on band offsets at epitaxial oxide/GaN interfaces

Applied Physics Letters, 112(9).

By: E. Paisley, M. Brumbach, C. Shelton, A. Allerman, S. Atcitty, C. Rost, J. Ohlhausen, B. Doyle ...

Source: NC State University Libraries
Added: August 6, 2018

2018 | conference paper

On Contacts to III-nitride deep-UV emitters

In 2018 3rd International Conference on Microwave and Photonics (ICMAP).

By: B. Sarkar, P. Reddy, A. Klump, R. Rounds, M. Breckenridge, B. Haidet, S. Mita, R. Kirste, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

On compensation in Si-doped AlN

Applied Physics Letters, 112(15).

By: J. Harris, J. Baker, B. Gaddy, I. Bryan, Z. Bryan, K. Mirrielees, P. Reddy, R. Collazo, Z. Sitar, D. Irving

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

Plasma enhanced chemical vapor deposition of SiO2 and SiNx on AlGaN: Band offsets and interface studies as a function of Al composition

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 36(6).

By: P. Reddy, S. Washiyama, W. Mecouch, L. Hernandez-Balderrama, F. Kaess, M. Breckenridge, B. Sarkar, B. Haidet ...

Source: NC State University Libraries
Added: December 10, 2018

2018 | journal article

Point-defect nature of the ultraviolet absorption band in AIN

Physical Review Applied, 9(5).

By: D. Alden, J. Harris, Z. Bryan, J. Baker, P. Reddy, S. Mita, G. Callsen, A. Hoffmann ...

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

Probing collective oscillation of d-orbital electrons at the nanoscale

Applied Physics Letters, 112(6).

By: R. Dhall, D. Vigil-Fowler, J. Dycus, R. Kirste, S. Mita, Z. Sitar, R. Collazo, J. LeBeau

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

Structure of ultrathin native oxides on III-nitride surfaces

ACS Applied Materials & Interfaces, 10(13), 10607–10611.

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

Thermal conductivity of GaN single crystals: Influence of impurities incorporated in different growth processes

JOURNAL OF APPLIED PHYSICS, 124(10).

By: R. Rounds, B. Sarkar, T. Sochacki, M. Bockowski, M. Imanishi, Y. Mori, R. Kirste, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: October 16, 2018

2018 | journal article

Thermal conductivity of single-crystalline AIN

Applied Physics Express, 11(7).

By: R. Rounds, B. Sarkar, A. Klump, C. Hartmann, T. Nagashima, R. Kirste, A. Franke, M. Bickermann ...

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

The influence of point defects on the thermal conductivity of AlN crystals

Journal of Applied Physics, 123(18).

By: R. Rounds, B. Sarkar, D. Alden, Q. Guo, A. Klump, C. Hartmann, T. Nagashima, R. Kirste ...

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Defect quasi Fermi level control-based C-N reduction in GaN: Evidence for the role of minority carriers

Applied Physics Letters, 111(15).

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Defect-free Ni/GaN Schottky barrier behavior with high temperature stability

Applied Physics Letters, 110(1).

By: P. Reddy, B. Sarkar, F. Kaess, M. Gerhold, E. Kohn, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

High free carrier concentration in p-GaN grown on AlN substrates

Applied Physics Letters, 111(3).

By: B. Sarkar, S. Mita, P. Reddy, A. Klump, F. Kaess, J. Tweedie, I. Bryan, Z. Bryan ...

Source: NC State University Libraries
Added: August 6, 2018

2017 | conference paper

Material considerations for the development of III-nitride power devices

In Gallium nitride and silicon carbide power technologies 7 (Vol. 80, pp. 29–36).

By: B. Sarkar, P. Reddy, F. Kaess, B. Haidet, J. Tweedie, S. Mita, R. Kirste, E. Kohn, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Model for the deep defect-related emission bands between 1.4 and 2.4 eV in AlN

Physica Status Solidi. B, Basic Solid State Physics, 254(8).

By: M. Lamprecht, V. Jmerik, R. Collazo, Z. Sitar, S. Ivanov & K. Thonke

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Nonlinear analysis of vanadium- and titanium-based contacts to Al-rich n-AlGaN

Japanese Journal of Applied Physics, 56(10).

By: B. Haidet, B. Sarkar, P. Reddy, I. Bryan, Z. Bryan, R. Kirste, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Optical nonlinear and electro-optical coefficients in bulk aluminium nitride single crystals

Physica Status Solidi. B, Basic Solid State Physics, 254(9).

By: A. Majkic, A. Franke, R. Kirste, R. Schlesser, R. Collazo, Z. Sitar, M. Zgonik

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Optical signatures of silicon and oxygen related DX centers in AlN

Physica Status Solidi. A, Applications and Materials Science, 214(9).

By: K. Thonke, M. Lamprecht, R. Collazo & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Performance improvement of ohmic contacts on Al-rich n-AlGaN grown on single crystal AlN substrate using reactive ion etching surface treatment

Applied Physics Express, 10(7).

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Point defect reduction in MOCVD (Al)GaN by chemical potential control and a comprehensive model of C incorporation in GaN

Journal of Applied Physics, 122(24).

By: P. Reddy, S. Washiyama, F. Kaess, R. Kirste, S. Mita, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Slow decay of a defect-related emission band at 2.05eV in AlN: Signatures of oxygen-related DX states

Physica Status Solidi. B, Basic Solid State Physics, 254(5).

By: M. Lamprecht, C. Grund, S. Bauer, R. Collazo, Z. Sitar & K. Thonke

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Step-free GaN surfaces grown by confined-area metal-organic vapor phase epitaxy

APL Materials, 5(9).

By: C. Shelton, I. Bryan, E. Paisley, E. Sachet, J. Ihlefeld, N. Lavrik, R. Collazo, Z. Sitar, J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Atomically thin MoS2 narrowband and broadband light superabsorbers

ACS Nano, 10(8), 7493–7499.

By: L. Huang, G. Li, A. Gurarslan, Y. Yu, R. Kirste, W. Guo, J. Zhao, R. Collazo ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Correlation between mobility collapse and carbon impurities in Si-doped GaN grown by low pressure metalorganic chemical vapor deposition

Journal of Applied Physics, 120(10).

By: F. Kaess, S. Mita, J. Xie, P. Reddy, A. Klump, L. Hernandez-Balderrama, S. Washiyama, A. Franke ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

The Effect of illumination power density on carbon defect configuration in silicon doped gan

Journal of Applied Physics, 120(23).

By: F. Kaess, P. Reddy, D. Alden, A. Klump, L. Hernandez-Balderrama, A. Franke, R. Kirste, A. Hoffmann, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Fabrication and structural properties of AlN submicron periodic lateral polar structures and waveguides for UV-C applications

Applied Physics Letters, 108(26).

By: D. Alden, W. Guo, R. Kirste, F. Kaess, I. Bryan, T. Troha, A. Bagal, P. Reddy ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

High reflectivity III-nitride UV-C distributed Bragg reflectors for vertical cavity emitting lasers

Journal of Applied Physics, 120(13).

By: A. Franke, M. Hoffmann, R. Kirste, M. Bobea, J. Tweedie, F. Kaess, M. Gerhold, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

High temperature and low pressure chemical vapor deposition of silicon nitride on AlGaN: Band offsets and passivation studies

Journal of Applied Physics, 119(14).

By: P. Reddy, S. Washiyama, F. Kaess, M. Breckenridge, L. Hernandez-Balderrama, B. Haidet, D. Alden, A. Franke ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Influence of high-temperature processing on the surface properties of bulk AlN substrates

Journal of Crystal Growth, 446, 33–38.

By: S. Tojo, R. Yamamoto, R. Tanaka, Q. Thieu, R. Togashi, T. Nagashima, T. Kinoshita, R. Dalmau ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Point defect reduction in wide bandgap semiconductors by defect quasi Fermi level control

Journal of Applied Physics, 120(18).

By: P. Reddy, M. Hoffmann, F. Kaess, Z. Bryan, I. Bryan, M. Bobea, A. Klump, J. Tweedie ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Polarity control in group-III nitrides beyond pragmatism

Physical Review Applied, 5(5).

By: S. Mohn, N. Stolyarchuk, T. Markurt, R. Kirste, M. Hoffmann, R. Collazo, A. Courville, R. Di Felice ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Selective area epitaxy of magnesium oxide thin films on gallium nitride surfaces

Journal of Materials Research, 31(1), 36–45.

By: M. Losego, E. Paisley, H. Craft, P. Lam, E. Sachet, S. Mita, R. Collazo, Z. Sitar, J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2016 | conference paper

Strain engineered high reflectivity DBRs in the deep UV

In Gallium nitride materials and devices xi (Vol. 9748).

By: A. Franke, P. Hoffmann, L. Hernandez-Balderrama, F. Kaess, I. Bryan, S. Washiyama, M. Bobea, J. Tweedie ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Surface kinetics in AlN growth: A universal model for the control of surface morphology in III-nitrides

Journal of Crystal Growth, 438, 81–89.

By: I. Bryan, Z. Bryan, S. Mita, A. Rice, J. Tweedie, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

UV second harmonic generation in AlN waveguides with modal phase matching

Optical Materials Express, 6(6), 2014–2023.

By: T. Troha, M. Rigler, D. Alden, I. Bryan, W. Guo, R. Kirste, S. Mita, M. Gerhold ...

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Very slow decay of a defect related emission band at 2.4 eV in AlN: Signatures of the Si related shallow DX state

Journal of Applied Physics, 119(15).

By: M. Lamprecht, C. Grund, B. Neuschl, K. Thonke, Z. Bryan, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

The role of surface kinetics on composition and quality of AlGaN

Journal of Crystal Growth, 451, 65–71.

By: I. Bryan, Z. Bryan, S. Mita, A. Rice, L. Hussey, C. Shelton, J. Tweedie, J. Maria, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2015 | review

AlGaN devices and growth of device structures

Journal of Materials Science.

By: K. Jones, T. Chow, M. Wraback, M. Shatalov, Z. Sitar, F. Shahedipour, K. Udwary, G. Tompa

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Charge neutrality levels, barrier heights, and band offsets at polar AlGaN

Applied Physics Letters, 107(9).

By: P. Reddy, I. Bryan, Z. Bryan, J. Tweedie, S. Washiyama, R. Kirste, S. Mita, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Fabrication of vertical Schottky barrier diodes on n-type freestanding AIN substrates grown by hydride vapor phase epitaxy

Applied Physics Express, 8(6).

By: T. Kinoshita, T. Nagashima, T. Obata, S. Takashima, R. Yamamoto, R. Togashi, Y. Kumagai, R. Schlesser ...

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Growth and characterization of AlxGa1-xN lateral polarity structures

Physica Status Solidi. A, Applications and Materials Science, 212(5), 1039–1042.

By: M. Hoffmann, R. Kirste, S. Mita, W. Guo, J. Tweedie, M. Bobea, I. Bryan, Z. Bryan ...

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

High internal quantum efficiency in AlGaN multiple quantum wells grown on bulk AlN substrates

Applied Physics Letters, 106(14).

By: Z. Bryan, I. Bryan, J. Xie, S. Mita, Z. Sitar & R. Collazo

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

KOH based selective wet chemical etching of AlN, AlxGa1-xN, and GaN crystals: A way towards substrate removal in deep ultraviolet-light emitting diode

Applied Physics Letters, 106(8).

By: W. Guo, R. Kirste, I. Bryan, Z. Bryan, L. Hussey, P. Reddy, J. Tweedie, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Optical characterization of Al- and N-polar AlN waveguides for integrated optics

Applied Physics Express, 8(4).

By: M. Rigler, J. Buh, M. Hoffmann, R. Kirste, M. Bobea, S. Mita, M. Gerhold, R. Collazo, Z. Sitar, M. Zgonik

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Optical properties of aluminum nitride single crystals in the THz region

Optical Materials Express, 5(10), 2106–2111.

By: A. Majkic, U. Puc, A. Franke, R. Kirste, R. Collazo, Z. Sitar, M. Zgonik

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Strain dependence on polarization properties of AlGaN and AlGaN-based ultraviolet lasers grown on AlN substrates

Applied Physics Letters, 106(23).

By: Z. Bryan, I. Bryan, S. Mita, J. Tweedie, Z. Sitar & R. Collazo

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

A conduction model for contacts to Si-doped AlGaN grown on sapphire and single-crystalline AlN

Journal of Applied Physics, 117(24).

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Characterization of threading dislocations in pvt-grown aln substrates via x-ray topography and ray tracing simulation

Journal of Electronic Materials, 43(4), 838–842.

By: T. Zhou, B. Raghothamachar, F. Wu, R. Dalmau, B. Moody, S. Craft, R. Schlesser, M. Dudley, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Dependence on pressure of the refractive indices of wurtzite ZnO, GaN, and AlN

Physical Review. B, Condensed Matter and Materials Physics, 90(4).

By: A. Goni, F. Kaess, J. Reparaz, M. Alonso, M. Garriga, G. Callsen, M. Wagner, A. Hoffmann, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Exciton transitions and oxygen as a donor in m-plane AlN homoepitaxial films

Journal of Applied Physics, 115(13).

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Fermi level control of compensating point defects during metalorganic chemical vapor deposition growth of Si-doped AlGaN

Applied Physics Letters, 105(22).

By: Z. Bryan, I. Bryan, B. Gaddy, P. Reddy, L. Hussey, M. Bobea, W. Guo, M. Hoffmann ...

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

HVPE-GaN grown on MOCVD-GaN/sapphire template and ammonothermal GaN seeds: Comparison of structural, optical, and electrical properties

Journal of Crystal Growth, 394, 55–60.

By: T. Sochacki, Z. Bryan, M. Amilusik, M. Bobea, M. Fijalkowski, I. Bryan, B. Lucznik, R. Collazo ...

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Homoepitaxial AlN thin films deposited on m-plane (1(1)over-bar00) AlN substrates by metalorganic chemical vapor deposition

Journal of Applied Physics, 116(13).

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Phonon pressure coefficients and deformation potentials of wurtzite AlN determined by uniaxial pressure-dependent Raman measurements

Physical Review. B, Condensed Matter and Materials Physics, 90(20).

By: G. Callsen, M. Wagner, J. Reparaz, F. Nippert, T. Kure, S. Kalinowski, A. Hoffmann, M. Ford ...

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Polarity characterization by anomalous x-ray dispersion of ZnO films and GaN lateral polar structures

Journal of Applied Physics, 115(4).

Source: NC State University Libraries
Added: August 6, 2018

2014 | conference paper

Properties of AlN based lateral polarity structures

In Physica status solidi c: current topics in solid state physics, vol 11, no 2 (Vol. 11, pp. 261–264).

By: R. Kirste, S. Mita, M. Hoffmann, L. Hussey, W. Guo, I. Bryan, Z. Bryan, J. Tweedie ...

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Sapphire decomposition and inversion domains in N-polar aluminum nitride

Applied Physics Letters, 104(3).

By: L. Hussey, R. White, R. Kirste, S. Mita, I. Bryan, W. Guo, K. Osterman, B. Haidet ...

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Schottky contact formation on polar and non-polar AlN

Journal of Applied Physics, 116(19).

By: P. Reddy, I. Bryan, Z. Bryan, J. Tweedie, R. Kirste, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Smooth cubic commensurate oxides on gallium nitride

Journal of Applied Physics, 115(6).

By: E. Paisley, B. Gaddy, J. LeBeau, C. Shelton, M. Biegalski, H. Christen, M. Losego, S. Mita ...

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Stimulated emission and optical gain in AlGaN heterostructures grown on bulk AlN substrates

Journal of Applied Physics, 115(10).

By: W. Guo, Z. Bryan, J. Xie, R. Kirste, S. Mita, I. Bryan, L. Hussey, M. Bobea ...

Source: NC State University Libraries
Added: August 6, 2018

2014 | conference paper

Surface preparation of non-polar single-crystalline AlN substrates

In Physica status solidi c: current topics in solid state physics, vol 11, no 3-4 (Vol. 11, pp. 454–457).

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

The effect of polarity and surface states on the Fermi level at III-nitride surfaces

Journal of Applied Physics, 116(12).

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

The role of the carbon-silicon complex in eliminating deep ultraviolet absorption in AlN

Applied Physics Letters, 104(20).

By: B. Gaddy, Z. Bryan, I. Bryan, J. Xie, R. Dalmau, B. Moody, Y. Kumagai, T. Nagashima ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Aqueous stability of Ga- and N-polar gallium nitride

Langmuir, 29(1), 216–220.

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Cell behavior on gallium nitride surfaces: Peptide affinity attachment versus covalent functionalization

Langmuir, 29(26), 8377–8384.

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Comparative study of etching high crystalline quality AlN and GaN

Journal of Crystal Growth, 366, 20–25.

By: W. Guo, J. Xie, C. Akouala, S. Mita, A. Rice, J. Tweedie, I. Bryan, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Direct determination of the silicon donor ionization energy in homoepitaxial AlN from photoluminescence two-electron transitions

Applied Physics Letters, 103(12).

By: B. Neuschl, K. Thonke, M. Feneberg, R. Goldhahn, T. Wunderer, Z. Yang, N. Johnson, J. Xie ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Epitaxial PbxZr1-xTiO3 on GaN

Journal of Applied Physics, 113(7).

By: E. Paisley, H. Craft, M. Losego, H. Lu, A. Gruverman, R. Collazo, Z. Sitar, J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2013 | article

Epitaxial lead zirconate titanate on gallium nitride (vol 113, 074107, 2013)

Journal of Applied Physics.

By: E. Paisley, H. Craft, M. Losego, H. Lu, A. Gruverman, R. Collazo, Z. Sitar, J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Excitonic emission dynamics in homoepitaxial AlN films studied using polarized and spatio-time-resolved cathodoluminescence measurements

Applied Physics Letters, 103(14).

By: S. Chichibu, K. Hazu, Y. Ishikawa, M. Tashiro, T. Ohtomo, K. Furusawa, A. Uedono, S. Mita ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Fermi level control of point defects during growth of Mg-doped GaN

Journal of Electronic Materials, 42(5), 815–819.

By: Z. Bryan, M. Hoffmann, J. Tweedie, R. Kirste, G. Callsen, I. Bryan, A. Rice, M. Bobea ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Ge doped GaN with controllable high carrier concentration for plasmonic applications

Applied Physics Letters, 103(24).

By: R. Kirste, M. Hoffmann, E. Sachet, M. Bobea, Z. Bryan, I. Bryan, C. Nenstiel, A. Hoffmann ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Kinase detection with gallium nitride based high electron mobility transistors

Applied Physics Letters, 103(1).

By: M. Makowski, I. Bryan, Z. Sitar, C. Arellano, J. Xie, R. Collazo, A. Ivanisevic

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Lasing and longitudinal cavity modes in photo-pumped deep ultraviolet AlGaN heterostructures

Applied Physics Letters, 102(17).

By: J. Xie, S. Mita, Z. Bryan, W. Guo, L. Hussey, B. Moody, R. Schlesser, R. Kirste ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Performance and reliability of deep-ultraviolet light-emitting diodes fabricated on AlN substrates prepared by hydride vapor phase epitaxy

Applied Physics Express, 6(9).

By: T. Kinoshita, T. Obata, T. Nagashima, H. Yanagi, B. Moody, S. Mita, S. Inoue, Y. Kumagai, A. Koukitu, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Polarity control and growth of lateral polarity structures in AlN

Applied Physics Letters, 102(18).

By: R. Kirste, S. Mita, L. Hussey, M. Hoffmann, W. Guo, I. Bryan, Z. Bryan, J. Tweedie ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Preparation of free-standing GaN substrates from thick GaN layers crystallized by hydride vapor phase epitaxy on ammonothermally grown GaN seeds

Applied Physics Express, 6(7).

By: T. Sochacki, Z. Bryan, M. Amilusik, R. Collazo, B. Lucznik, J. Weyher, G. Nowak, B. Sadovyi ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Refractive index of III-metal-polar and N-polar AlGaN waveguides grown by metal organic chemical vapor deposition

Applied Physics Letters, 102(22).

By: M. Rigler, M. Zgonik, M. Hoffmann, R. Kirste, M. Bobea, R. Collazo, Z. Sitar, S. Mita, M. Gerhold

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Strain relaxation by pitting in AlN thin films deposited by metalorganic chemical vapor deposition

Applied Physics Letters, 102(6).

By: I. Bryan, A. Rice, L. Hussey, Z. Bryan, M. Bobea, S. Mita, J. Xie, R. Kirste, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Universal phonon mean free path spectra in crystalline semiconductors at high temperature

Scientific Reports, 3.

By: J. Freedman, J. Leach, E. Preble, Z. Sitar, R. Davis & J. Malen

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Vacancy compensation and related donor-acceptor pair recombination in bulk AlN

Applied Physics Letters, 103(16).

By: B. Gaddy, Z. Bryan, I. Bryan, R. Kirste, J. Xie, R. Dalmau, B. Moody, Y. Kumagai ...

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

X-ray characterization techniques for the assessment of surface damage in crystalline wafers: A model study in AlN

Journal of Applied Physics, 113(12).

By: M. Bobea, J. Tweedie, I. Bryan, Z. Bryan, A. Rice, R. Dalmau, J. Xie, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

The 7th International Workshop on Bulk Nitride Semiconductors Koyasan, Wakayama, Japan 15-20 March 2011 Preface

Journal of Crystal Growth, 350(1), 1–1.

By: J. Freitas, Z. Sitar, Y. Kumagai & E. Meissener

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Deep-ultraviolet light-emitting diodes fabricated on AlN substrates prepared by hydride vapor phase epitaxy

Applied Physics Express, 5(12).

By: T. Kinoshita, K. Hironaka, T. Obata, T. Nagashima, R. Dalmau, R. Schlesser, B. Moody, J. Xie ...

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Lateral epitaxial overgrowth of nitrogen polar GaN on smooth nitrogen polar GaN templates by metalorganic chemical vapor deposition

Journal of Applied Physics, 112(11).

By: L. Hussey, S. Mita, J. Xie, W. Guo, C. Akouala, J. Rajan, I. Bryan, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

On the origin of the 265 nm absorption band in AlN bulk crystals

Applied Physics Letters, 100(19).

By: R. Collazo, J. Xie, B. Gaddy, Z. Bryan, R. Kirste, M. Hoffmann, R. Dalmau, B. Moody ...

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Optical identification of silicon as a shallow donor in MOVPE grown homoepitaxial AlN

Physica Status Solidi. B, Basic Solid State Physics, 249(3), 511–515.

By: B. Neuschl, K. Thonke, M. Feneberg, S. Mita, J. Xie, R. Dalmau, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Optical signature of Mg-doped GaN: Transfer processes

Physical Review. B, Condensed Matter and Materials Physics, 86(7).

By: G. Callsen, M. Wagner, T. Kure, J. Reparaz, M. Bugler, J. Brunnmeier, C. Nenstiel, A. Hoffmann ...

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Preparation of a freestanding AIN substrate from a thick AIN layer grown by hydride vapor phase epitaxy on a Bulk AIN substrate prepared by physical vapor transport

Applied Physics Express, 5(5).

By: Y. Kumagai, Y. Kubota, T. Nagashima, T. Kinoshita, R. Dalmau, R. Schlesser, B. Moody, J. Xie ...

Source: NC State University Libraries
Added: August 6, 2018

2012 | conference paper

Schottky barrier and interface chemistry for Ni contacted to Al0.8Ga0.2N grown on c-oriented AlN single crystal substrates

In Physica status solidi c: current topics in solid state physics, vol 9, no 3-4 (Vol. 9, pp. 584–587).

By: J. Tweedie, R. Collazo, A. Rice, S. Mita, J. Xie, R. Akouala, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Structural and optical properties of carbon-doped AlN substrates grown by hydride vapor phase epitaxy using AlN substrates prepared by physical vapor transport

Applied Physics Express, 5(12).

By: T. Nagashima, Y. Kubota, T. Kinoshita, Y. Kumagai, J. Xie, R. Collazo, H. Murakami, H. Okamoto, A. Koukitu, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Surfactant assisted growth of MgO films on GaN

Applied Physics Letters, 101(9).

By: E. Paisley, T. Shelton, S. Mita, R. Collazo, H. Christen, Z. Sitar, M. Biegalski, J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Weakly charged cationic nanoparticles induce DNA bending and strand separation

Advanced Materials, 24(31), 4261-.

Source: NC State University Libraries
Added: August 6, 2018

2011 | conference paper

265 nm light emitting diodes on AlN single crystal substrates: Growth and characterization

In 2011 Conference on Lasers and Electro-Optics (CLEO).

By: R. Collazo, S. Mita, J. Xie, A. Rice, J. Tweedie, R. Dalmau, B. Moody, R. Schlesser ...

Source: NC State University Libraries
Added: August 6, 2018

2011 | journal article

Growth and characterization of AlN and AlGaN epitaxial films on AlN single crystal substrates

Journal of the Electrochemical Society, 158(5), H530–535.

By: R. Dalmau, B. Moody, R. Schlesser, S. Mita, J. Xie, M. Feneberg, B. Neuschl, K. Thonke ...

Source: NC State University Libraries
Added: August 6, 2018

2011 | journal article

On the strain in n-type GaN

Applied Physics Letters, 99(14).

By: J. Xie, S. Mita, L. Hussey, A. Rice, J. Tweedie, J. LeBeau, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2011 | conference paper

Progress on n-type doping of AlGaN alloys on AlN single crystal substrates for UV optoelectronic applications

In Physica status solidi c: current topics in solid state physics, vol 8, no 7-8 (Vol. 8).

By: R. Collazo, S. Mita, J. Xie, A. Rice, J. Tweedie, R. Dalmau, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2011 | journal article

Sharp bound and free exciton lines from homoepitaxial AlN

Physica Status Solidi. A, Applications and Materials Science, 208(7), 1520–1522.

By: M. Feneberg, B. Neuschl, K. Thonke, R. Collazo, A. Rice, Z. Sitar, R. Dalmau, J. Xie, S. Mita, R. Goldhahn

Source: NC State University Libraries
Added: August 6, 2018

2011 | journal article

Spectroscopic measurements of the surface stoichiometry of chemical vapor deposited GaN

Applied Physics Letters, 98(8).

By: H. Craft, A. Rice, R. Collazo, Z. Sitar & J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2011 | journal article

Strain in Si doped GaN and the Fermi level effect

Applied Physics Letters, 98(20).

By: J. Xie, S. Mita, A. Rice, J. Tweedie, L. Hussey, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2011 | journal article

Surfactant-enabled epitaxy through control of growth mode with chemical boundary conditions

Nature Communications, 2.

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

Critical examination of growth rate for magnesium oxide (MgO) thin films deposited by molecular beam epitaxy with a molecular oxygen flux

Journal of Materials Research, 25(4), 670–679.

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

Free-standing lithium niobate microring resonators for hybrid integrated optics

IEEE Photonics Technology Letters, 22(4), 251–253.

By: M. Koechlin, F. Sulser, Z. Sitar, G. Poberaj & P. Gunter

Source: NC State University Libraries
Added: August 6, 2018

2010 | conference paper

Growth of AlN single crystalline boules

In Journal of Crystal Growth (Vol. 312, pp. 2519–2521).

By: Z. Herro, D. Zhuang, R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2010 | conference paper

Implementation of the GaN lateral polarity junction in a MESFET utilizing polar doping selectivity

In Physica Status Solidi. A, Applications and Materials Science (Vol. 207, pp. 45–48).

By: R. Collazo, S. Mita, J. Xie, A. Rice, J. Tweedie, R. Dalmau, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2010 | conference paper

Linear dependency of Al-mole fraction with group-III precursor flows in AlxGa1-xN (0 <= x <= 1) deposition by LP OMVPE

In Journal of Crystal Growth (Vol. 312, pp. 1321–1324).

By: A. Rice, R. Collazo, J. Tweedie, J. Xie, S. Mita & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

Optical properties of InN grown on templates with controlled surface polarities

Physica Status Solidi. A, Applications and Materials Science, 207(10), 2351–2354.

By: R. Kirste, M. Wagner, J. Schulze, A. Strittmatter, R. Collazo, Z. Sitar, M. Alevli, N. Dietz, A. Hoffmann

Source: NC State University Libraries
Added: August 6, 2018

2010 | patent

Seeded growth process for preparing aluminum nitride single crystals

By: R. Schlesser, V. Noveski & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

Surface preparation and homoepitaxial deposition of AlN on (0001)-oriented AlN substrates by metalorganic chemical vapor deposition

Journal of Applied Physics, 108(4).

By: A. Rice, R. Collazo, J. Tweedie, R. Dalmau, S. Mita, J. Xie, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

X-ray characterization of composition and relaxation of AlxGa1-xN(0 <= x <= 1) layers grown on GaN/sapphire templates by low pressure organometallic vapor phase epitaxy

Journal of Applied Physics, 108(4).

By: J. Tweedie, R. Collazo, A. Rice, J. Xie, S. Mita, R. Dalmau, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

The effect of N-polar GaN domains as Ohmic contacts

Applied Physics Letters, 97(12).

By: J. Xie, S. Mita, R. Collazo, A. Rice, J. Tweedie & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2009 | journal article

Advances in bulk crystal growth of AlN and GaN

MRS Bulletin, 34(4), 259–265.

By: D. Ehrentraut & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2009 | patent

Dense, shaped articles constructed of a refractory material and methods of preparing such articles

By: R. Schlesser, R. Dalmau, V. Noveski & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2009 | journal article

Epitaxial Ba0.5Sr0.5TiO3-GaN heterostructures with abrupt interfaces

Journal of Crystal Growth, 311(4), 1106–1109.

By: M. Losego, L. Kourkoutis, S. Mita, H. Craft, D. Muller, R. Collazo, Z. Sitar, J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2009 | conference paper

Fabrication of a GaN lateral polarity junction by metalorganic chemical vapor deposition

In Journal of Crystal Growth (Vol. 311, pp. 3044–3048).

By: S. Mita, R. Collazo & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2009 | journal article

Seeded growth of AlN bulk crystals in m- and c-orientation

Journal of Crystal Growth, 312(1), 58–63.

By: P. Lu, R. Collazo, R. Dalmau, G. Durkaya, N. Dietz, B. Raghothamachar, M. Dudley, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

lu Different optical absorption edges in AlN bulk crystals grown in m- and c-orientations

Applied Physics Letters, 93(13).

By: P. Lu, R. Collazo, R. Dalmau, G. Durkaya, N. Dietz & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Direct observation of inversion domain boundaries of GaN on c-sapphire at sub-Angstrom resolution

Advanced Materials, 20(11), 2162-.

By: F. Liu, R. Collazo, S. Mita, Z. Sitar, S. Pennycook & G. Duscher

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Epitaxial growth of the metastable phase ytterbium monoxide on gallium nitride surfaces

Journal of Crystal Growth, 310(1), 51–56.

By: M. Losego, S. Mita, R. Collazo, Z. Sitar & J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Influence of gallium supersaturation on the properties of GaN grown by metalorganic chemical vapor deposition

Journal of Applied Physics, 104(1).

By: S. Mita, R. Collazo, A. Rice, R. Dalmau & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Modulated precursor flow epitaxial growth of AlN layers on native AlN substrates by metal-organic chemical vapor deposition

Applied Physics Letters, 93(2).

By: H. Kim, S. Choi, D. Yoo, J. Ryou, R. Dupuis, R. Dalmau, P. Lu, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Seeded growth of AlN on SiC substrates and defect characterization

Journal of Crystal Growth, 310(10), 2464–2470.

By: P. Lu, J. Edgar, C. Cao, K. Hohn, R. Dalmau, R. Schlesser, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Spectroscopic analysis of the epitaxial CaO (111)-GaN (0002) interface

Applied Physics Letters, 92(8).

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Surface water reactivity of polycrystalline MgO and CaO films investigated using x-ray photoelectron spectroscopy

Journal of Vacuum Science & Technology. A, Vacuum, Surfaces, and Films, 26(6), 1507–1510.

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Thermodynamic and kinetic study of transport and reaction phenomena in gallium nitride epitaxy growth

International Journal of Heat and Mass Transfer, 51(5-6), 1264–1280.

By: D. Cai, W. Mecouch, L. Zheng, H. Zhang & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Three-dimensional geometry of nanometer-scale AlN pits: A new template for quantum dots?

Advanced Materials, 20(1), 134-.

By: F. Liu, R. Collazo, S. Mita, Z. Sitar & G. Duscher

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

The influence of substrate polarity on the structural quality of InN layers grown by high-pressure chemical vapor deposition

Applied Physics Letters, 92(4).

By: N. Dietz, M. Alevli, R. Atalay, G. Durkaya, R. Collazo, J. Tweedie, S. Mita, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Band offsets and growth mode of molecular beam epitaxy grown MgO (111) on GaN (0002) by x-ray photoelectron spectroscopy

Journal of Applied Physics, 102(7).

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Effect of thermal environment evolution on A1N bulk sublimation crystal growth

Journal of Crystal Growth, 306(1), 39–46.

By: D. Cai, L. Zheng, H. Zhang, D. Zhuang, Z. Herro, R. Schlesser, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Electronic high temperature characteristics of AlN

Electronics Letters, 43(10), 592–594.

By: M. Neuburger, A. Aleksov, R. Schlesser, E. Kohn & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Epitaxial calcium oxide films deposited on gallium nitride surfaces

Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures, 25(3), 1029–1032.

By: M. Losego, S. Mita, R. Collazo, Z. Sitar & J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Simultaneous growth of a GaN p/n lateral polarity junction by polar selective doping

Applied Physics Letters, 91(21).

By: R. Collazo, S. Mita, A. Rice, R. Dalmau & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Sublimation growth of aluminum nitride on silicon carbide substrate with aluminum nitride-silicon carbide alloy transition layer

Journal of Materials Research, 22(3), 675–680.

By: Z. Gu, J. Edgar, B. Raghothamachar, M. Dudley, D. Zhuang, Z. Sitar, D. Coffey

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Synthesis of erbium-doped gallium nitride crystals by the ammonothermal route

Journal of Crystal Growth, 308(1), 71–79.

By: B. Adekore, M. Callahan, L. Bouthillette, R. Dalmau & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

X-ray photoelectron spectroscopy characterization of aluminum nitride surface oxides: Thermal and hydrothermal evolution

Journal of Electronic Materials, 36(4), 414–419.

By: R. Dalmau, R. Collazo, S. Mita & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

The mechanism for polarity inversion of GaN via a thin AlN layer: Direct experimental evidence

Applied Physics Letters, 91(20).

By: F. Liu, R. Collazo, S. Mita, Z. Sitar, G. Duscher & S. Pennycook

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Ammonothermal synthesis of aluminum nitride crystals on group III-nitride templates

Journal of Electronic Materials, 35(5), 1104–1111.

By: B. Adekore, K. Rakes, B. Wang, M. Callahan, S. Pendurti & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Characterization of bulk grown GaN and AlN single crystal materials

Journal of Crystal Growth, 287(2), 349–353.

By: B. Raghothamachar, J. Bai, M. Dudley, R. Dalmau, D. Zhuang, Z. Herro, R. Schlesser, Z. Sitar ...

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Comparative study of textured diamond films by thermal conductivity measurements

Applied Physics. A, Materials Science & Processing (Online), 85(3), 331–335.

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Current-voltage characteristics of n/n lateral polarity junctions in GaN

Applied Physics Letters, 89(5).

By: A. Aleksov, R. Collazo, S. Mita, R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Growth of Ga- and N- polar gallium nitride layers by metalorganic vapor phase epitaxy on sapphire wafers

Journal of Crystal Growth, 287(2), 586–590.

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Investigation of the effect of the total pressure and methane concentration on the growth rate and quality of diamond thin films grown by MPCVD

Diamond and Related Materials, 15(11-12), 1784–1788.

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

MgO epitaxy on GaN (0002) surfaces by molecular beam epitaxy

Applied Physics Letters, 88(21).

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Molecular beam epitaxy of Sm2O3, Dy2O3, and Ho2O3 on Si (111)

Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures, 24(4), 2105–2110.

By: H. Craft, R. Collazo, Z. Sitar & J. Maria

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Seeded growth of AlN crystals on nonpolar seeds via physical vapor transport

Journal of Electronic Materials, 35(7), 1513–1517.

By: D. Zhuang, Z. Herro, R. Schlesser, B. Raghothamachar, M. Dudley & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Seeded growth of AlN on N- and Al-polar < 0 0 0 1 > AlN seeds by physical vapor transport

Seeded growth of AlN on N- and Al-polar < 0 0 0 1 > AlN seeds by physical vapor transport. Journal of Crystal Growth, 286(2), 205–208.

By: Z. Herro, D. Zhuang, R. Schlesser, R. Collazo & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Seeded growth of AlN single crystals by physical vapor transport

Journal of Crystal Growth, 287(2), 372–375.

By: D. Zhuang, Z. Herro, R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Silicon-on-diamond - An engineered substrate for electronic applications

Diamond and Related Materials, 15(2-3), 248–253.

By: A. Aleksov, J. Gobien, X. Li, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2005 | journal article

AlN bulk crystals grown on SiC seeds

Journal of Crystal Growth, 281(1), 68–74.

Source: NC State University Libraries
Added: August 6, 2018

2005 | journal article

Bulk nitride workshop - Preface

Journal of Crystal Growth, 281(1), 1.

By: J. Freitas & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2005 | journal article

Crucible materials for growth of aluminum nitride crystals

Journal of Crystal Growth, 281(1), 75–80.

By: R. Schlesser, R. Dalmau, D. Zhuang, R. Collazo & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2005 | journal article

Design of an RF-heated bulk AlN growth reactor: Induction heating and heat transfer modeling

Crystal Growth and Design, 5(4), 1491–1498.

By: B. Wu, V. Noveski, H. Zhang, R. Schlesser, S. Mahajan, S. Beaudoin, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2019 | journal article

Fabrication and thermal evaluation of silicon on diamond wafers

Journal of Electronic Materials, 34(7), 1089–1094.

By: A. Aleksov, S. Wolter, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2005 | journal article

Silicon-on-diamond: An advanced silicon-on-insulator technology

Diamond and Related Materials, 14(07-Mar), 308–313.

By: A. Aleksov, X. Li, N. Govindaraju, J. Gobien, S. Wolter, J. Prater, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2019 | personal communication

Transmission electron microscopy studies of the bonded SiC-SiC interface

Yushin, G. N., Kvit, A. V., & Sitar, Z. (2019, August 5). Journal of Materials Science.

By: G. Yushin, A. Kvit & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Band-edge exciton states in AlN single crystals and epitaxial layers

Applied Physics Letters, 85(19), 4334–4336.

By: L. Chen, B. Skromme, R. Dalmau, R. Schlesser, Z. Sitar, C. Chen, W. Sun, J. Yang ...

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Growth of AlN crystals on AlN/SiC seeds by AlN powder sublimation in nitrogen atmosphere

MRS Internet Journal of Nitride Semiconductor Research, 9(2).

By: V. Noveski, R. Schlesser, S. Mahajan, S. Beaudoin & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Influence of relative wafer rotation on the electrical properties of the bonded SiC/SiC interface

Applied Physics Letters, 84(20), 3993–3995.

By: G. Yushin & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Mass transfer in A1N crystal growth at high temperatures

Journal of Crystal Growth, 264(1/3), 369–378.

By: V. Noveski, R. Schlesser, S. Mahajan, S. Beaudoin & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Model for the influence of boron impurities on the morphology of AIN grown by physical vapor transport

Surface Science, 560(03-Jan), L202–206.

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Nanoscale GaN whiskers fabricated by photoelectrochemical etching

Journal of Applied Physics, 96(9), 5185–5188.

By: J. Grenko, C. Reynolds, R. Schlesser, J. Hren, K. Bachmann, Z. Sitar, P. Kotula

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Processing and thermal properties of highly oriented diamond thin films

Thin Solid Films, 469-70(Dec 22 2004), 105–111.

By: S. Wolter, D. Borca-Tasciuc, G. Chen, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Selective etching of GaN from AlGaN/GaN and AlN/GaN structures

MRS Internet Journal of Nitride Semiconductor Research, 9(5).

By: J. Grenko, C. Reynolds, R. Schlesser, K. Bachmann, Z. Rietmeier, R. Davis, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

Wafer bonding of highly oriented diamond to silicon

Diamond and Related Materials, 13(10), 1816–1821.

By: G. Yushin, A. Aleksov, S. Wolter, F. Okuzumi, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2004 | journal article

The growth and optical properties of large, high-quality AlN single crystals

Journal of Applied Physics, 96(10), 5870–5876.

By: M. Strassburg, J. Senawiratne, N. Dietz, U. Haboeck, A. Hoffmann, V. Noveski, R. Dalmau, R. Schlesser, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2003 | journal article

Band-gap dependence of field emission from one-dimensional nanostructures grown on n-type and p-type silicon substrates

Physical Review. B, Condensed Matter and Materials Physics, 68(12).

By: C. Chang, S. Chattopadhyay, L. Chen, K. Chen, C. Chen, Y. Chen, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2003 | journal article

Bias frequency, waveform and duty-cycle effects on the bias-enhanced nucleation of epitaxial diamond

Thin Solid Films, 440(02-Jan), 145–151.

By: S. Wolter, F. Okuzumi, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2003 | journal article

Electron energy distribution during high-field transport in AlN

Journal of Applied Physics, 93(5), 2765–2771.

Source: NC State University Libraries
Added: August 6, 2018

2003 | journal article

Mechanisms limiting electron field emission from diamond

New Diamond and Frontier Carbon Technology, 13(5), 285–295.

By: R. Schlesser, M. McClure & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2003 | journal article

Processing routes for direct bonding of silicon to epitaxially textured diamond

Diamond and Related Materials, 12(3-7), 257–261.

By: S. Wolter, G. Yushin, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2003 | journal article

Thermal conductivity of epitaxially textured diamond films

Diamond and Related Materials, 12(1), 61–64.

By: S. Wolter, D. Borca-Tasciuc, G. Chen, N. Govindaraju, R. Collazo, F. Okuzumi, J. Prater, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

AC vs. DC bias-enhanced nucleation of highly oriented diamond on silicon (100)

Journal of the Electrochemical Society, 149(2), G114–117.

By: S. Wolter, F. Okuzumi, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

Direct fusion bonding of silicon to polycrystalline diamond

Diamond and Related Materials, 11(3-6), 482–486.

By: S. Wolter, G. Yushin, F. Okuzumi, B. Stoner, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

Experimental observation of electron velocity overshoot in AlN

Applied Physics Letters, 81(27), 5189–5191.

By: R. Collazo, R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

Growth and decomposition of bulk GaN: role of the ammonia/nitrogen ratio

Journal of Crystal Growth, 236(4), 529–537.

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

Growth of bulk AlN crystals by vaporization of aluminum in a nitrogen atmosphere

Journal of Crystal Growth, 234(2-3), 349–353.

By: R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

High temperature nucleation and growth of GaN crystals from the vapor phase

Journal of Crystal Growth, 241(4), 404–415.

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

Role of adsorbates in field emission from nanotubes

Diamond and Related Materials, 11(3-6), 769–773.

By: R. Collazo, R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

Seeded growth of AlN bulk single crystals by sublimation

Journal of Crystal Growth, 241(4), 416–420.

By: R. Schlesser, R. Dalmau & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

Study of fusion bonding of diamond to silicon for silicon-on- diamond technology

Applied Physics Letters, 81(17), 3275–3277.

By: G. Yushin, S. Wolter, A. Kvit, R. Collazo, B. Stoner, J. Prater, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2002 | journal article

Synchrotron white beam topography characterization of physical vapor transport grown AlN and ammonothermal GaN

Journal of Crystal Growth, 246(3-4), 271–280.

By: B. Raghothamachar, W. Vetter, M. Dudley, R. Dalmau, R. Schlesser, Z. Sitar, E. Michaels, J. Kolis

Source: NC State University Libraries
Added: August 6, 2018

2001 | journal article

Angle-dependent reflectometry as a technique for fast assessment of highly oriented diamond film quality

Diamond and Related Materials, 10(11), 2092–2095.

By: S. Wolter, R. Schlesser, F. Okuzumi, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2001 | journal article

Frequency and duty cycle dependence on the pulsed bias-enhanced nucleation of highly oriented diamond on (100) silicon

Physica Status Solidi. A, Applications and Materials Science, 186(2), 331–337.

By: S. Wolter, F. Okuzumi, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2001 | journal article

Process optimization in the low-pressure flat flame growth of diamond

Diamond and Related Materials, 10(3-7), 289–294.

By: S. Wolter, R. Schlesser, F. Okuzumi, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2001 | journal article

Raman spectroscopic characterization of diamond films grown in a low-pressure flat flame

Journal of Crystal Growth, 226(1), 88–94.

By: S. Wolter, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2001 | journal article

Two field-emission states of single-walled carbon nanotubes

Applied Physics Letters, 78(14), 2058–2060.

By: R. Collazo, R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2000 | journal article

Characterization of dielectrics on the 'tips of needles'

Electrochemistry, 30(4), 210–215.

By: J. Hren, V. Zhirnov, Z. Sitar & G. Wojak

Source: NC State University Libraries
Added: August 6, 2018

2000 | journal article

Energy distribution of field emitted electrons from carbon nanotubes

Diamond and Related Materials, 9(3-6), 1201–1204.

By: R. Schlesser, R. Collazo, C. Bower, O. Zhou & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

2000 | journal article

Growth and characterization of GaN single crystals

Journal of Crystal Growth, 208(1-4), 100–106.

By: C. Balkas, Z. Sitar, L. Bergman, I. Shmagin, J. Muth, R. Kolbas, R. Nemanich, R. Davis

Source: NC State University Libraries
Added: August 6, 2018

2000 | journal article

Hot electron transport in AlN

Journal of Applied Physics, 88(10), 5865–5869.

By: R. Collazo, R. Schlesser, A. Roskowski, R. Davis & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

1999 | journal article

Effect of nitrogen incorporation on electron emission from chemical vapor deposited diamond

Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures, 17(2), 734–739.

By: M. Park, A. Sowers, C. Rinne, R. Schlesser, L. Bergman, R. Nemanich, Z. Sitar, J. Hren ...

Source: NC State University Libraries
Added: August 6, 2018

1999 | journal article

The influences of reactant composition and substrate material on the combustion synthesis of diamond

Journal of Materials Research, 14(1), 259–269.

By: C. Wolden, C. Draper, Z. Sitar & J. Prater

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Coalesced oriented diamond films on nickel

Journal of Materials Research, 13(5), 1120–1123.

By: P. Yang, C. Wolden, W. Liu, R. Schlesser, R. Davis, J. Prater, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Electron emission characteristics of GaN pyramid arrays grown via organometallic vapor phase epitaxy

Journal of Applied Physics, 84(9), 5238–5242.

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Electron emission mechanism from cubic boron nitride-coated molybdenum emitters

Applied Physics Letters, 72(22), 2909–2911.

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Electron energy distribution of diamond-coated field emitters

Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures, 16(2), 716–719.

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Field emission energy distribution analysis of cubic-BN-coated Mo emitters: Nonlinear behavior

Journal of Applied Physics, 84(6), 3382–3385.

By: B. McCarson, R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Field emission energy distribution analysis of wide-band-gap field emitters

Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures, 16(2), 689–692.

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Flat-flame diamond CVD: the effect of pressure and operating conditions for specific applications

Diamond and Related Materials, 7(2-5), 133–138.

By: C. Wolden, R. Davis, Z. Sitar & J. Prater

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Heteroepitaxial nucleation of diamond on nickel

Diamond and Related Materials, 7(2-5), 276–282.

By: Z. Sitar, W. Liu, P. Yang, C. Wolden, R. Schlesser & J. Prater

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Mechanisms of field emission from diamond coated Mo emitters

Diamond and Related Materials, 7(2-5), 636–639.

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Structural and electronic properties of boron nitride thin films containing silicon

Journal of Applied Physics, 84(9), 5046–5051.

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Surface melting in the heteroepitaxial nucleation of diamond on Ni

Journal of Crystal Growth, 187(1), 81–88.

By: P. Yang, W. Liu, R. Schlesser, C. Wolden, R. Davis, J. Prater, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

Transmission electron microscoanalysis of the oriented diamond growth on nickel substrates

Journal of Applied Physics, 83(12), 7658–7663.

By: W. Liu, P. Yang, C. Wolden, R. Davis, J. Prater & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

1998 | journal article

The influence of nitrogen addition on the morphology, growth rate, and Raman spectra of combustion grown diamond

Diamond and Related Materials, 7(8), 1178–1183.

By: C. Wolden, C. Draper, Z. Sitar & J. Prater

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Control of diamond heteroepitaxy on nickel by optical reflectance

Applied Physics Letters, 70(22), 2960–2962.

By: P. Yang, R. Schlesser, C. Wolden, W. Liu, R. Davis, Z. Sitar, J. Prater

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Dielectric, pyroelectric and structural properties of LiTaO3 thin films grown on silicon by a modified molecular beam epitaxy

Ferroelectrics, 201(1-4), 245–253.

By: Y. Tao, F. Gitmans, Z. Sitar, H. Pierhofer, A. Kundig, I. Gamboni, P. Gunter

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Electrical characterization of diamond and graphite coated Mo field emitters

Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures, 15(6), 2067–2071.

By: M. McClure, R. Schlesser, B. McCarson & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Energy distribution of field emitted electrons from diamond coated molybdenum tips

Applied Physics Letters, 70(12), 1596–1598.

By: R. Schlesser, M. McClure, W. Choi, J. Hren & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Gas-source molecular beam epitaxy of III-V nitrides

Journal of Crystal Growth, 178(1/2), 87–101.

By: R. Davis, M. Paisley, Z. Sitar, D. Kester, K. Ailey, K. Linthicum, L. Rowland, S. Tanaka, R. Kern

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Growth of AlN and GaN thin films via OMVPE and gas source MBE and their characterization

Solid-State Electronics, 41(2), 129–134.

By: R. Davis

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Highly oriented diamond deposited using a low pressure flat flame

Materials Letters, 32(1), 9–12.

By: C. Wolden, S. Han, M. McClure, Z. Sitar & J. Prater

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

In situ mass spectrometry during diamond chemical vapor deposition using a low pressure flat flame

Journal of Materials Research, 12(10), 2733–2742.

By: C. Wolden, R. Davis, Z. Sitar & J. Prater

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Low-temperature deposition of optically transparent diamond using a low-pressure flat flame

Diamond and Related Materials, 6(12), 1862–1867.

By: C. Wolden, R. Davis, Z. Sitar & J. Prater

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Optical metastability in bulk GaN single crystals

Applied Physics Letters, 71(4), 455–457.

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Photoluminescence from mechanically milled Si and SiO(2) powders

Physical Review. B, Condensed Matter and Materials Physics, 55(12), 7615–7623.

Source: NC State University Libraries
Added: August 6, 2018

1997 | journal article

Sublimation growth and characterization of bulk aluminum nitride single crystals

Journal of Crystal Growth, 179(3-4), 363–370.

By: C. Balkas, Z. Sitar, T. Zheleva, L. Bergman, R. Nemanich & R. Davis

Source: NC State University Libraries
Added: August 6, 2018

1996 | conference paper

Growth of bulk AIN and GaN single crystals by sublimation

In III-V nitrides: symposium held December 2-6, 1996, Boston, Massachusetts, U.S.A. (Materials Research Society symposia proceedings ; v. 449) (pp. 41–46). Pittsburgh, Pa.: Materials Research Society.

Source: NC State University Libraries
Added: August 6, 2018

1989 | journal article

Growth of cubic phase gallium nitride by modified molecular-beam epitaxy

Journal of Vacuum Science & Technology. A, Vacuum, Surfaces, and Films, 7(3), 701–705.

By: M. Paisley, Z. Sitar, J. Posthill & R. Davis

Source: NC State University Libraries
Added: August 6, 2018

| conference paper

Fabrication and characterization of lateral polar GaN structures for second harmonic generation

Hoffmann, M. P., Gerhold, M., Kirste, R., Rice, A., Akouala, C. R., Xie, J. Q. Q., … Sitar, Z. In Quantum sensing and nanophotonic devices x (Vol. 8631).

Source: NC State University Libraries
Added: August 6, 2018

| journal article

Field emission from carbon nanotubes

Collazo, R., Schlesser, R., & Sitar, Z. New Diamond and Frontier Carbon Technology, 13(5), 297–306.

By: R. Collazo, R. Schlesser & Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

| journal article

Nanostructure surface patterning of GaN thin films and application to AlGaN/AlN multiple quantum wells: A way towards light extraction efficiency enhancement of III-nitride based light emitting diodes

Guo, W., Kirste, R., Bryan, Z., Bryan, I., Gerhold, M., Collazo, R., & Sitar, Z. Journal of Applied Physics, 117(11).

By: W. Guo, R. Kirste, Z. Bryan, I. Bryan, M. Gerhold, R. Collazo, Z. Sitar

Source: NC State University Libraries
Added: August 6, 2018

| conference paper

On the origin of the 4.7 eV absorption and 2.8 eV emission bands in bulk AlN substrates

Alden, D., Bryan, Z., Gaddy, B. E., Bryan, I., Callsen, G., Koukitu, A., … Collazo, R. In Wide bandgap semiconductor materials and devices 17 (Vol. 72, pp. 31–40).

By: D. Alden, Z. Bryan, B. Gaddy, I. Bryan, G. Callsen, A. Koukitu, Y. Kumagai, A. Hoffmann ...

Source: NC State University Libraries
Added: August 6, 2018

| review

Ultrawide-bandgap semiconductors: Research opportunities and challenges

Tsao, J. Y., Chowdhury, S., Hollis, M. A., Jena, D., Johnson, N. M., Jones, K. A., … Grotjohn, T. A. Advanced Electronic Materials.

By: J. Tsao, S. Chowdhury, M. Hollis, D. Jena, N. Johnson, K. Jones, R. Kaplar, S. Rajan ...

Source: NC State University Libraries
Added: August 6, 2018