Publications
] , "Demonstration of high power blue-green light emitting diode on semipolar (1122) bulk GaN substrate", Electronics Letters, vol. 43, no. 15: IET Digital Library, pp. 825–827, 2007.
, "Formation and reduction of pyramidal hillocks on m-plane ${$1 1 00$}$ GaN", Applied Physics Letters, vol. 91, no. 19: AIP, pp. 191906, 2007.
, "High Power and High External Efficiency m-Plane InGaN LEDs", The European Conference on Lasers and Electro-Optics: Optical Society of America, pp. CE3_3, 2007.
, "Impacts of dislocation bending and impurity incorporation on the local cathodoluminescence spectra of GaN grown by ammonothermal method", Applied Physics Letters, vol. 91, no. 25: AIP, pp. 251911, 2007.
, "On the Mechanism of Dislocation and Stacking Fault Formation in a-plane GaN Films Grown by Hydride Vapor Phase Epitaxy", AIP Conference Proceedings, vol. 893, no. 1: AIP, pp. 341–342, 2007.
, "Papers from the 34th Annual Conference on the Physics and Chemistry of Semiconductor Interfaces-Complex Oxides-Radiative and nonradiative lifetimes in nonpolar m-plane InxGa1-xN/GaN multiple", Journal of Vacuum Science and Technology-Section B, vol. 25, no. 4: Woodbury, NY: Published for the Society by the American Institute of Physics, 1991-, pp. 1524–1528, 2007.
, "Progress in the growth of nonpolar gallium nitride", physica status solidi (b), vol. 244, no. 8: Wiley Online Library, pp. 2847–2858, 2007.
, "Radiative and nonradiative lifetimes in nonpolar m-plane In x Ga 1- x N/ Ga N multiple quantum wells grown on GaN templates prepared by lateral epitaxial overgrowth", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 25, no. 4: AVS, pp. 1524–1528, 2007.
, "Characterization of nanoscale electronic structure in nonpolar GaN using scanning capacitance microscopy", Journal of Applied Physics, vol. 103, no. 1: AIP, pp. 014305, 2008.
, "Directional emission control and increased light extraction in GaN photonic crystal light emitting diodes", Applied physics letters, vol. 93, no. 10: AIP, pp. 103502, 2008.
, Nonpolar Nitride Semiconductor Optoelectronic Devices: A Disruptive Technology for Next Generation Army Applications: DTIC Document, 2008.
, "Piezoelectric Field in Semi-Polar InGaN/GaN Quantum Wells H. Shen, GA Garrett, and M. Wraback US Army Research Laboratory 2800 Powder Mill Road, Adelphi, MD 20783", Phys. Lett, vol. 92, pp. 221110, 2008.
, "Determination of polarization field in a semipolar (11 2\= 2) In Ga/ Ga N single quantum well using Franz–Keldysh oscillations in electroreflectance", Applied Physics Letters, vol. 94, no. 24: AIP, pp. 241906, 2009.
, "Unambiguous evidence of the existence of polarization field crossover in a semipolar InGaN/GaN single quantum well", Applied Physics Letters, vol. 95, no. 3: AIP, pp. 033503, 2009.
, "Low-threshold-current-density AlGaN-cladding-free m-plane InGaN/GaN laser diodes", Applied Physics Letters, vol. 96, no. 23: AIP, pp. 231113, 2010.
, "Origin of pyramidal hillocks on GaN thin films grown on free-standing m-plane GaN substrates", Applied Physics Letters, vol. 96, no. 23: AIP, pp. 231907, 2010.
, "Polarization field crossover in semi-polar InGaN/GaN single quantum wells", physica status solidi (c), vol. 7, no. 10: Wiley Online Library, pp. 2378–2381, 2010.
, "Atom probe analysis of interfacial abruptness and clustering within a single In x Ga 1- x N quantum well device on semipolar (10 1\= 1\=) GaN substrate", Applied physics letters, vol. 98, no. 19: AIP, pp. 191903, 2011.
, "Determination of internal parameters for AlGaN-cladding-free m-plane InGaN/GaN laser diodes", Applied Physics Letters, vol. 99, no. 17: AIP, pp. 171115, 2011.
, "Electroluminescence enhancement of (112\= 2) semipolar GaN light-emitting diodes grown on miscut m-plane sapphire substrates", Current Applied Physics, vol. 11, no. 3: North-Holland, pp. 954–958, 2011.
, "High quantum efficiency InGaN/GaN multiple quantum well solar cells with spectral response extending out to 520 nm", Applied Physics Letters, vol. 98, no. 20: AIP, pp. 201107, 2011.
, "High-power blue-violet AlGaN-cladding-free m-plane InGaN/GaN laser diodes", Applied Physics Letters, vol. 99, no. 17: AIP, pp. 171113, 2011.
, "Misfit dislocation formation at heterointerfaces in (Al, In) GaN heteroepitaxial layers grown on semipolar free-standing GaN substrates", Journal of Applied Physics, vol. 109, no. 3: AIP, pp. 033505, 2011.
, "Observation of non-basal slip in semipolar InxGa1-xN/GaN heterostructures", Applied Physics Letters, vol. 99, no. 25: AIP, pp. 251909, 2011.