Works (16)

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

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 | 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

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

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

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

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

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

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

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

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