Publications
] , "Structural characterization of thick GaN films grown on free-standing GaN seeds by the ammonothermal method using basic ammonia", Japanese journal of applied physics, vol. 44, no. 6L: IOP Publishing, pp. L797, 2005.
, "Temperature-dependent Radiative Lifetimes of Excitons in Non-polar GaN/AlGaN Quantum Wells", Semiconductor Device Research Symposium, 2005 International: IEEE, pp. 225–226, 2005.
, "Tunnel junctions in GaN/AlN for optoelectronic applications", Device Research Conference Digest, 2005. DRC'05. 63rd, vol. 1: IEEE, pp. 23–24, 2005.
, "Uniformity and control of surface morphology during growth of GaN by molecular beam epitaxy", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 23, no. 4: AVS, pp. 1379–1385, 2005.
, "Al Ga N/ Ga N metal-oxide-semiconductor heterostructure field-effect transistors using barium strontium titanate", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 22, no. 5: AVS, pp. 2479–2485, 2004.
, "Ammonothermal growth of GaN utilizing negative temperature dependence of solubility in basic ammonia", MRS Online Proceedings Library Archive, vol. 831: Cambridge University Press, 2004.
, "Analysis of interface electronic structure in In x Ga 1- x N/GaN heterostructures", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 22, no. 4: AVS, pp. 2169–2174, 2004.
, "Analysis of reverse-bias leakage current mechanisms in GaN grown by molecular-beam epitaxy", Applied physics letters, vol. 84, no. 4: AIP, pp. 535–537, 2004.
, "Blue GaN-based light-emitting diodes grown by molecular-beam epitaxy with external quantum efficiency greater than 1.5%", Applied physics letters, vol. 84, no. 15: AIP, pp. 2748–2750, 2004.
, "Carbon doping of GaN with CBr 4 in radio-frequency plasma-assisted molecular beam epitaxy", Journal of applied physics, vol. 95, no. 12: AIP, pp. 8456–8462, 2004.
, "Carbon-related Deep States in Compensated n-type and Semi-Insulating GaN: C and their Influence on Yellow Luminescence", MRS Online Proceedings Library Archive, vol. 831: Cambridge University Press, 2004.
, "Cathodoluminescence study of deep ultraviolet quantum wells grown on maskless laterally epitaxial overgrown AlGaN", Applied physics letters, vol. 85, no. 8: AIP, pp. 1350–1352, 2004.
, "Dislocation-and crystallographic-dependent photoelectrochemical wet etching of gallium nitride", Applied physics letters, vol. 84, no. 17: AIP, pp. 3322–3324, 2004.
, "Dopant activation and ultralow resistance ohmic contacts to Si-ion-implanted GaN using pressurized rapid thermal annealing", Applied physics letters, vol. 85, no. 22: AIP, pp. 5254–5256, 2004.
, "Effect of carbon doping on buffer leakage in AlGaN/GaN high electron mobility transistors", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 22, no. 3: AVS, pp. 1145–1149, 2004.
, "Effect of nitridation on polarity, microstructure, and morphology of AlN films", Applied physics letters, vol. 84, no. 6: AIP, pp. 912–914, 2004.
, "Effect of thermal strain on the ferroelectric phase transition in polycrystalline Ba 0.5 Sr 0.5 Ti O 3 thin films studied by Raman spectroscopy", Applied physics letters, vol. 85, no. 18: AIP, pp. 4124–4126, 2004.
, "Erratum: Nonpolar In x Ga 1- x N/G a N (1 1\= 0 0) multiple quantum wells grown on γ- L i A l O 2 (100) by plasma-assisted molecular-beam epitaxy [Phys. Rev. B 67, 041306 (R)(2003)]", Physical Review B, vol. 69, no. 12: APS, pp. 129902, 2004.
, "Gallium adsorption onto (1120) gallium nitride surfaces", Journal of applied physics, vol. 96, no. 1: AIP, pp. 327–334, 2004.
, "GaN quantum dot density control by rf-plasma molecular beam epitaxy", Applied physics letters, vol. 84, no. 5: AIP, pp. 690–692, 2004.
, "Growth and fabrication of short-wavelength UV LEDs", Third International Conference on Solid State Lighting, vol. 5187: International Society for Optics and Photonics, pp. 250–260, 2004.
, "Growth and laser-assisted liftoff of low dislocation density AlN thin films for deep-UV light-emitting diodes", Journal of crystal growth, vol. 272, no. 1-4: North-Holland, pp. 257–263, 2004.
, "Growth of A1N by the chemical vapor reaction process and its application to lateral overgrowth on patterned sapphire substrates", Journal of crystal growth, vol. 272, no. 1-4: North-Holland, pp. 370–376, 2004.
, "Impact of carbon on trap states in n-type GaN grown by metalorganic chemical vapor deposition", Applied physics letters, vol. 84, no. 3: AIP, pp. 374–376, 2004.
, "Improved quantum efficiency in nonpolar (112Ø0) AlGaN/GaN quantum wells grown on GaN prepared by lateral epitaxial overgrowth", Applied physics letters, vol. 84, no. 19: AIP, pp. 3768–3770, 2004.