Publications
] , "Deep levels in n-type Schottky and p+-n homojunction GaN diodes", Materials Research Society Internet Journal of Nitride Semiconductor Research, vol. 5, no. S1: Cambridge University Press, pp. 922–928, 2000.
, "Hydrogen passivation of deep levels in n–GaN", Applied Physics Letters, vol. 77, no. 10: AIP, pp. 1499–1501, 2000.
, "Optically and thermally detected deep levels in n-type Schottky and p+-n GaN diodes", Applied Physics Letters, vol. 76, no. 21: AIP, pp. 3064–3066, 2000.
, "Capture Kinetics of Electron Traps in MBE-Grown n-GaN", physica status solidi (b), vol. 228, no. 1: WILEY-VCH Verlag Berlin GmbH Berlin, pp. 309–313, 2001.
, "Carrier Trapping and Recombination at Point Defects and Dislocations in MOCVD n-GaN", physica status solidi (b), vol. 228, no. 3: WILEY-VCH Verlag Berlin GmbH Berlin, pp. 937–946, 2001.
, "Papers presented at the Fourth International Conference on Nitride Semiconductors (ICNS-4) Denver, Colorado, USA, July 16-20, 2001 (Part B. 1)-Point defects and impurities in GaN-Capture Kinetics", Physica Status Solidi-B-Basic Research, vol. 228, no. 1: Berlin: Akademie-Verlag, 1971-, pp. 309–314, 2001.
, "Impact of Ga/N flux ratio on trap states in n-GaN grown by plasma-assisted molecular-beam epitaxy", Applied physics letters, vol. 80, no. 5: AIP, pp. 805–807, 2002.
, "Detection of carbon-related bandgap states in GaN using deep level optical spectroscopy", Compound Semiconductors, 2003. International Symposium on: IEEE, pp. 4–5, 2003.
, "High-quality InAs y P 1- y step-graded buffer by molecular-beam epitaxy", Applied physics letters, vol. 82, no. 19: AIP, pp. 3212–3214, 2003.
, "Identification of carbon-related bandgap states in GaN grown by MOCVD", MRS Online Proceedings Library Archive, vol. 798: Cambridge University Press, 2003.
, "Impact of Growth Pressure on Defects in GaN Grown", Proceedings of the IEEE... International Symposium on Compound Semiconductors, vol. 30: IEEE, pp. 42, 2003.
, "Impact of growth pressure on defects in GaN grown by metalorganic chemical vapor deposition", Compound Semiconductors: Post-Conference Proceedings, 2003 International Symposium on: IEEE, pp. 42–48, 2003.
, "Influence of Growth Parameters on the Deep Level Spectrum in MBE-Grown n-GaN", MRS Online Proceedings Library Archive, vol. 798: Cambridge University Press, 2003.
, "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.
, "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.
, "Impact of deep levels on the electrical conductivity and luminescence of gallium nitride codoped with carbon and silicon", Journal of Applied physics, vol. 98, no. 5: AIP, pp. 053704, 2005.
, "A novel method to investigate defect states in MBE grown highly resistive GaN doped with C and Si", physica status solidi (c), vol. 2, no. 7: Wiley Online Library, pp. 2411–2414, 2005.
, "Effect of threading dislocation density on Ni/ n-Ga N Schottky diode I-V characteristics", Journal of applied physics, vol. 100, no. 2: AIP, pp. 023709, 2006.
, "Impact of substrate temperature on the incorporation of carbon-related defects and mechanism for semi-insulating behavior in GaN grown by molecular beam epitaxy", Applied physics letters, vol. 88, no. 8: AIP, pp. 082114, 2006.
, "Quantitative observation and discrimination of AlGaN-and GaN-related deep levels in Al Ga N/ Ga N heterostructures using capacitance deep level optical spectroscopy", Applied physics letters, vol. 89, no. 26: AIP, pp. 262116, 2006.
, "Comparison of deep level spectra in p-type and n-type GaN grown by molecular beam epitaxy", physica status solidi (b), vol. 244, no. 6: Wiley Online Library, pp. 1867–1871, 2007.
, "Comparison of deep level spectra in p-type and n-type GaN grown by molecular beam epitaxy [phys. stat. sol.(b) 244, No. 6, 1867–1871 (2007)]", physica status solidi (b), vol. 244, no. 12: Wiley Online Library, pp. 4692–4692, 2007.
, "Characterization of majority and minority carrier deep levels in p-type GaN: Mg grown by molecular beam epitaxy using deep level optical spectroscopy", Journal of Applied Physics, vol. 103, no. 6: AIP, pp. 063722, 2008.
, "Comparison of deep level incorporation in ammonia and rf-plasma assisted molecular beam epitaxy n-GaN films", physica status solidi (c), vol. 5, no. 6: Wiley Online Library, pp. 1750–1752, 2008.
, "Deep level optical and thermal spectroscopy of traps in n-GaN grown by ammonia molecular beam epitaxy", Applied Physics Letters, vol. 93, no. 11: AIP, pp. 112101, 2008.