Works (25)

Updated: July 21st, 2025 14:37

2025 article

Sputtered ferroelectric aluminum scandium boron nitride (Al1−x−yBxScyN)/n-GaN heterostructures

Skidmore, C., Nordlander, J., Hayden, J., Rice, A., Collazo, R., Sitar, Z., & Maria, J.-P. (2025, July 2). Journal of Applied Physics, Vol. 138.

By: C. Skidmore*, J. Nordlander*, J. Hayden*, A. Rice n, R. Collazo n, Z. Sitar n, J. Maria*

topics (OpenAlex): Acoustic Wave Resonator Technologies; GaN-based semiconductor devices and materials; Metal and Thin Film Mechanics
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 2, 2025

2016 article

The role of surface kinetics on composition and quality of AlGaN

Bryan, I., Bryan, Z., Mita, S., Rice, A., Hussey, L., Shelton, C., … Sitar, Z. (2016, July 2). Journal of Crystal Growth, Vol. 451, pp. 65–71.

author keywords: Growth models; Surface kinetics; Metalorganic chemical vapor deposition; Nitrides
topics (OpenAlex): GaN-based semiconductor devices and materials; ZnO doping and properties; Metal and Thin Film Mechanics
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 article

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

Bryan, I., Bryan, Z., Mita, S., Rice, A., Tweedie, J., Collazo, R., & Sitar, Z. (2015, December 30). Journal of Crystal Growth, Vol. 438, pp. 81–89.

author keywords: Growth models; Surface kinetics; Metalorganic chemical vapor deposition; Nitrides
topics (OpenAlex): GaN-based semiconductor devices and materials; Metal and Thin Film Mechanics; Semiconductor Quantum Structures and Devices
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 article

Surface preparation of non‐polar single‐crystalline AlN substrates

Bryan, I., Akouala, C. R., Tweedie, J., Bryan, Z., Rice, A., Kirste, R., … Sitar, Z. (2014, January 22). Physica Status Solidi. C, Conferences and Critical Reviews/Physica Status Solidi. C, Current Topics in Solid State Physics, Vol. 11, pp. 454–457.

By: I. Bryan n, C. Akouala n, J. Tweedie n, Z. Bryan n, A. Rice n, R. Kirste n, R. Collazo n, Z. Sitar n

author keywords: aluminum nitride; aluminum hydroxides; X-ray photoelectron spectroscopy; surface preparation
topics (OpenAlex): Metal and Thin Film Mechanics; Semiconductor materials and devices; GaN-based semiconductor devices and materials
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 article

Comparative study of etching high crystalline quality AlN and GaN

Guo, W., Xie, J., Akouala, C., Mita, S., Rice, A., Tweedie, J., … Sitar, Z. (2013, January 4). Journal of Crystal Growth, Vol. 366, pp. 20–25.

author keywords: Etching; Surfaces; Nitrides; Semiconducting III-V materials; Light emitting diodes
topics (OpenAlex): GaN-based semiconductor devices and materials; ZnO doping and properties; Ga2O3 and related materials
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 article

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

Neuschl, B., Thonke, K., Feneberg, M., Goldhahn, R., Wunderer, T., Yang, Z., … Sitar, Z. (2013, September 16). Applied Physics Letters, Vol. 103.

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

topics (OpenAlex): GaN-based semiconductor devices and materials; Acoustic Wave Resonator Technologies; Semiconductor materials and devices
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2013 article

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

Bryan, I., Rice, A., Hussey, L., Bryan, Z., Bobea, M., Mita, S., … Sitar, Z. (2013, February 11). Applied Physics Letters, Vol. 102.

topics (OpenAlex): GaN-based semiconductor devices and materials; Acoustic Wave Resonator Technologies; Metal and Thin Film Mechanics
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 article

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

Bobea, M., Tweedie, J., Bryan, I., Bryan, Z., Rice, A., Dalmau, R., … Sitar, Z. (2013, March 28). Journal of Applied Physics, Vol. 113.

topics (OpenAlex): Metal and Thin Film Mechanics; GaN-based semiconductor devices and materials; Semiconductor materials and devices
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 article

Fermi Level Control of Point Defects During Growth of Mg-Doped GaN

Bryan, Z., Hoffmann, M., Tweedie, J., Kirste, R., Callsen, G., Bryan, I., … Collazo, R. (2012, December 4). Journal of Electronic Materials, Vol. 42, pp. 815–819.

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

author keywords: Mg; GaN; UV excitation; Photoluminescence; Metal-organic chemical vapordeposition (MOCVD)
topics (OpenAlex): GaN-based semiconductor devices and materials; Semiconductor materials and devices; Ga2O3 and related materials
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 article

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

Tweedie, J., Collazo, R., Rice, A., Mita, S., Xie, J., Akouala, R. C., & Sitar, Z. (2012, January 26). Physica Status Solidi. C, Conferences and Critical Reviews/Physica Status Solidi. C, Current Topics in Solid State Physics, Vol. 9, pp. 584–587.

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

author keywords: Schottky barrier; AlN; AlGaN; XPS
topics (OpenAlex): GaN-based semiconductor devices and materials; Semiconductor materials and devices; Ga2O3 and related materials
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 article

265 nm Light Emitting Diodes on AlN Single Crystal Substrates: Growth and Characterization

Collazo, R., Mita, S., Xie, J., Rice, A., Tweedie, J., Dalmau, R., … Sitar, Z. (2011, January 1). 2011 Conference on Lasers and Electro-Optics (CLEO).

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

topics (OpenAlex): GaN-based semiconductor devices and materials; Acoustic Wave Resonator Technologies; Ga2O3 and related materials
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2011 article

Growth and Characterization of AlN and AlGaN Epitaxial Films on AlN Single Crystal Substrates

Dalmau, R., Moody, B., Schlesser, R., Mita, S., Xie, J., Feneberg, M., … Sitar, Z. (2011, January 1). Journal of The Electrochemical Society, Vol. 158, pp. H530–535.

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

topics (OpenAlex): GaN-based semiconductor devices and materials; ZnO doping and properties; Ga2O3 and related materials
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 article

On the strain in n-type GaN

Xie, J., Mita, S., Hussey, L., Rice, A., Tweedie, J., LeBeau, J., … Sitar, Z. (2011, October 3). Applied Physics Letters, Vol. 99.

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

author keywords: dislocation climb; elemental semiconductors; Fermi level; gallium compounds; germanium; III-V semiconductors; MOCVD; semiconductor doping; semiconductor epitaxial layers; tensile strength; transmission electron microscopy; vacancies (crystal); vapour phase epitaxial growth; wide band gap semiconductors; X-ray diffraction
topics (OpenAlex): GaN-based semiconductor devices and materials; Semiconductor materials and devices; Semiconductor Quantum Structures and Devices
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 article

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

Collazo, R., Mita, S., Xie, J., Rice, A., Tweedie, J., Dalmau, R., & Sitar, Z. (2011, May 9). Physica Status Solidi. C, Conferences and Critical Reviews/Physica Status Solidi. C, Current Topics in Solid State Physics, Vol. 8.

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

author keywords: aluminium nitride; aluminium gallium nitride; n-type doping; UV light emitting diodes
topics (OpenAlex): GaN-based semiconductor devices and materials; Ga2O3 and related materials; Metal and Thin Film Mechanics
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 article

Sharp bound and free exciton lines from homoepitaxial AlN

Feneberg, M., Neuschl, B., Thonke, K., Collazo, R., Rice, A., Sitar, Z., … Goldhahn, R. (2011, May 26). Physica Status Solidi (a), Vol. 208, pp. 1520–1522.

author keywords: aluminum nitride; donors; excitons; photoluminescence
topics (OpenAlex): GaN-based semiconductor devices and materials; Ga2O3 and related materials; ZnO doping and properties
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 article

Spectroscopic measurements of the surface stoichiometry of chemical vapor deposited GaN

Craft, H. S., Rice, A. L., Collazo, R., Sitar, Z., & Maria, J.-P. (2011, February 21). Applied Physics Letters, Vol. 98.

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

topics (OpenAlex): GaN-based semiconductor devices and materials; Metal and Thin Film Mechanics; Semiconductor materials and devices
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Temperature dependent photoluminescence of lateral polarity junctions of metal organic chemical vapor deposition grown GaN

Journal of Applied Physics, 110(9), 093503.

By: R. Kirste*, R. Collazo n, G. Callsen*, M. Wagner*, T. Kure*, J. Sebastian Reparaz*, S. Mita*, J. Xie* ...

topics (OpenAlex): GaN-based semiconductor devices and materials; Ga2O3 and related materials; ZnO doping and properties
Sources: Web Of Science, NC State University Libraries, Crossref
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), 043510.

topics (OpenAlex): Metal and Thin Film Mechanics; GaN-based semiconductor devices and materials; Semiconductor materials and devices
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2010 article

The effect of N-polar GaN domains as Ohmic contacts

Xie, J., Mita, S., Collazo, R., Rice, A., Tweedie, J., & Sitar, Z. (2010, September 20). Applied Physics Letters, Vol. 97.

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

author keywords: adsorption; contact resistance; elemental semiconductors; gallium compounds; Hall effect; III-V semiconductors; MOCVD; ohmic contacts; secondary ion mass spectra; semiconductor doping; silicon; wide band gap semiconductors
topics (OpenAlex): GaN-based semiconductor devices and materials; Semiconductor materials and devices; Ga2O3 and related materials
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 article

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

Tweedie, J., Collazo, R., Rice, A., Xie, J., Mita, S., Dalmau, R., & Sitar, Z. (2010, August 15). Journal of Applied Physics, Vol. 108.

topics (OpenAlex): GaN-based semiconductor devices and materials; Metal and Thin Film Mechanics; Acoustic Wave Resonator Technologies
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 article

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

Collazo, R., Mita, S., Xie, J., Rice, A., Tweedie, J., Dalmau, R., & Sitar, Z. (2009, December 8). Physica Status Solidi (a), Vol. 207, pp. 45–48.

topics (OpenAlex): GaN-based semiconductor devices and materials; Semiconductor materials and devices; ZnO doping and properties
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 article

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

Rice, A., Collazo, R., Tweedie, J., Xie, J., Mita, S., & Sitar, Z. (2009, September 18). Journal of Crystal Growth, Vol. 312, pp. 1321–1324.

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

author keywords: Low-pressure metalorganic vapor phase epitaxy; Organometallic vapor phase epitaxy; Nitrides; Semiconducting III-V materials; Semiconducting ternary compounds
topics (OpenAlex): GaN-based semiconductor devices and materials; Semiconductor materials and devices; Metal and Thin Film Mechanics
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 article

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

Mita, S., Collazo, R., Rice, A., Dalmau, R. F., & Sitar, Z. (2008, July 1). Journal of Applied Physics, Vol. 104.

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

topics (OpenAlex): GaN-based semiconductor devices and materials; Ga2O3 and related materials; ZnO doping and properties
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 article

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

Collazo, R., Mita, S., Rice, A., Dalmau, R. F., & Sitar, Z. (2007, November 19). Applied Physics Letters, Vol. 91.

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

topics (OpenAlex): GaN-based semiconductor devices and materials; Ga2O3 and related materials; ZnO doping and properties
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, 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. Quantum sensing and nanophotonic devices x, 8631.

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

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