Publications
] , "Electrical and structural characterizations of crystallized Al2O3/GaN interfaces formed by in situ metalorganic chemical vapor deposition", Journal of Applied Physics, vol. 119, no. 1: AIP Publishing, pp. 015303, 2016.
, "High-performance broadband optical coatings on InGaN/GaN solar cells for multijunction device integration", Applied Physics Letters, vol. 104, no. 16: AIP, pp. 163902, 2014.
, "Metalorganic chemical vapor deposition of Al 2 O 3 using trimethylaluminum and O 2 precursors: Growth mechanism and crystallinity", Journal of Crystal Growth, vol. 408: Elsevier, pp. 78–84, 2014.
, "Toward a physical understanding of the reliability-limiting E C-0.57 eV trap in GaN HEMTs", Reliability Physics Symposium, 2014 IEEE International: IEEE, pp. 2C–1, 2014.
, "Effect of intentional p-GaN surface roughening on the performance of InGaN/GaN solar cells", Applied Physics Letters, vol. 103, no. 24: AIP, pp. 241104, 2013.
, "Fixed charge and trap states of in situ Al2O3 on Ga-face GaN metal-oxide-semiconductor capacitors grown by metalorganic chemical vapor deposition", Journal of Applied Physics, vol. 114, no. 16: AIP, pp. 164507, 2013.
, "High performance thin quantum barrier InGaN/GaN solar cells on sapphire and bulk (0001) GaN substrates", Applied Physics Letters, vol. 103, no. 17: AIP, pp. 173903, 2013.
, "Spatially-resolved spectroscopic measurements of Ec- 0.57 eV traps in AlGaN/GaN high electron mobility transistors", Applied Physics Letters, vol. 102, no. 19: AIP, pp. 193509, 2013.
, "Access-region defect spectroscopy of DC-stressed N-polar GaN MIS-HEMTs", IEEE Electron Device Letters, vol. 33, no. 5: IEEE, pp. 658–660, 2012.
, "N-polar GaN HEMTs with f max> 300 GHz using high-aspect-ratio T-gate design", Device Research Conference (DRC), 2011 69th Annual: IEEE, pp. 269–270, 2011.
, "Trap-related delay analysis of self-aligned N-polar GaN/InAlN HEMTs with record extrinsic g m of 1105 mS/mm", Device Research Conference (DRC), 2011 69th Annual: IEEE, pp. 279–280, 2011.
, "Effect of carrier gas and substrate misorientation on the structural and optical properties of m-plane InGaN/GaN light-emitting diodes", Journal of Crystal Growth, vol. 313, no. 1: Elsevier, pp. 1–7, 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.
, "Properties of N-polar GaN films and AlGaN/GaN heterostructures grown on (111) silicon by metal organic chemical vapor deposition", Applied Physics Letters, vol. 97, no. 14: AIP, pp. 142109, 2010.
, "Ultra-low ohmic contacts to N-polar GaN HEMTs by In (Ga) N based source-drain regrowth by Plasma MBE", Proceedings of CS MANTECH Conference. Oregon, USA, pp. 111–114, 2010.
, "Vacancy-oxygen complexes and their optical properties in AlN epitaxial films studied by positron annihilation", Journal of Applied Physics, vol. 105, no. 5: AIP, pp. 054501, 2009.
, "Diffuse x-ray scattering from statistically inhomogeneous distributions of threading dislocations beyond the ergodic hypothesis", Physical Review B, vol. 77, no. 9: American Physical Society, pp. 094102, 2008.
, "Influence of the substrate misorientation on the properties of N-polar InGaN/GaN and AlGaN/GaN heterostructures", Journal of Applied Physics, vol. 104, no. 9: AIP, pp. 093510, 2008.
, "Microdiffraction imaging of dislocation densities in microstructured samples", EPL (Europhysics Letters), vol. 82, no. 5: IOP Publishing, pp. 56002, 2008.
, "Properties of N-polar AlGaN/GaN heterostructures and field effect transistors grown by metalorganic chemical vapor deposition", Journal of Applied Physics, vol. 103, no. 3: AIP, pp. 033708, 2008.
, "Compound Semiconductor Devices-Impact of CF4 Plasma Treatment on GaN", IEEE Electron Device Letters, vol. 28, no. 9, pp. 781, 2007.
, "Deep-recessed GaN HEMTs using selective etch technology exhibiting high microwave performance without surface passivation", Microwave Symposium, 2007. IEEE/MTT-S International: IEEE, pp. 623–626, 2007.
, "Growth and characterization of N-polar In Ga N/ Ga N multiquantum wells", Applied physics letters, vol. 90, no. 19: AIP, pp. 191908, 2007.
, "Influence of the substrate misorientation on the properties of N-polar GaN films grown by metal organic chemical vapor deposition", Journal of Applied Physics, vol. 102, no. 8: AIP, pp. 083546, 2007.
, "MOCVD regrowth of InGaN on N-polar and Ga-polar pillar and stripe nanostructures", physica status solidi (b), vol. 244, no. 6: Wiley Online Library, pp. 1802–1805, 2007.