Publications

Found 158 results
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Filters: Author is Mishra, UK  [Clear All Filters]
2006
Recht, F., L. McCarthy, S. Rajan, A. Chakraborty, C. Poblenz, A. Corrion, JS. Speck, and UK. Mishra, "Nonalloyed ohmic contacts in AlGaN/GaN HEMTs by ion implantation with reduced activation", Info: Postprints, UC Santa Barbara, 2006.
Shu, CS., A. Chini, Y. Fu, C. Poblenz, JS. Speck, and UK. Mishra, "P-gan/algan/gan enhancement-mode hemts", 64th Device Research Conference (DRC), pp. 163–164, 2006.
Koyama, T., T. Onuma, H. Masui, A. Chakraborty, BA. Haskell, S. Keller, UK. Mishra, JS. Speck, S. Nakamura, SP. DenBaars, et al., "Prospective emission efficiency and in-plane light polarization of nonpolar m-plane In x Ga 1- x N/ Ga N blue light emitting diodes fabricated on freestanding GaN substrates", Applied physics letters, vol. 89, no. 9: AIP, pp. 091906, 2006.
Armstrong, A., A. Chakraborty, JS. Speck, SP. DenBaars, UK. Mishra, and SA. Ringel, "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.
Onuma, T., S. Keller, SP. DenBaars, JS. Speck, S. Nakamura, UK. Mishra, T. Sota, and SF. Chichibu, "Recombination dynamics of a 268 nm emission peak in Al 0.53 In 0.11 Ga 0.36 N/ Al 0.58 In 0.02 Ga 0.40 N multiple quantum wells", Applied Physics Letters, vol. 88, no. 11: AIP, pp. 111912, 2006.
Shen, L., T. Palacios, C. Poblenz, A. Corrion, A. Chakraborty, N. Fichtenbaum, S. Keller, SP. DenBaars, JS. Speck, and UK. Mishra, "Unpassivated high power deeply recessed GaN HEMTs with fluorine-plasma surface treatment", IEEE Electron Device Letters, vol. 27, no. 4: IEEE, pp. 214–216, 2006.
2005
Rajan, S., A. Chini, M. Wong, Y. Fu, F. Wu, JS. Speck, UK. Mishra, M. J. Grundmann, and C. Suh, Advanced Transistor Structures Based on N-face GaN , 2005.
Poblenz, C., P. Waltereit, S. Rajan, UK. Mishra, JS. Speck, P. Chin, I. Smorchkova, and B. Heying, "Effect of AlN nucleation layer growth conditions on buffer leakage in Al Ga N/ Ga N high electron mobility transistors grown by molecular beam epitaxy (MBE)", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 23, no. 4: AVS, pp. 1562–1567, 2005.
Chini, A., S. Rajan, M. Wong, Y. Fu, JS. Speck, and UK. Mishra, "Fabrication and Characterization of N-Face AlGaN/GaN/AlGaN HEMTs", Device Research Conference Digest, 2005. DRC'05. 63rd, vol. 1: IEEE, pp. 63–64, 2005.
Rajan, S., M. Wong, Y. Fu, F. Wu, JS. Speck, and UK. Mishra, "Growth and electrical characterization of N-face AlGaN/GaN heterostructures", Japanese journal of applied physics, vol. 44, no. 11L: IOP Publishing, pp. L1478, 2005.
Palacios, T., A. Chakraborty, S. Rajan, C. Poblenz, S. Keller, SP. DenBaars, JS. Speck, and UK. Mishra, "High-power AlGaN/GaN HEMTs for Ka-band applications", IEEE Electron Device Letters, vol. 26, no. 11: IEEE, pp. 781–783, 2005.
Armstrong, A., AR. Arehart, D. Green, UK. Mishra, JS. Speck, and SA. Ringel, "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.
Onuma, T., A. Chakraborty, BA. Haskell, S. Keller, SP. DenBaars, JS. Speck, S. Nakamura, UK. Mishra, T. Sota, and SF. Chichibu, "Localized exciton dynamics in nonpolar (11 2\= 0) In x Ga 1- x N multiple quantum wells grown on GaN templates prepared by lateral epitaxial overgrowth", Applied Physics Letters, vol. 86, no. 15: AIP, pp. 151918, 2005.
Armstrong, A., A. Arehart, D. Green, JS. Speck, UK. Mishra, and SA. Ringel, "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.
Yu, H., L. McCarthy, H. Xing, P. Waltereit, L. Shen, S. Keller, SP. DenBaars, JS. Speck, and UK. Mishra, "Publisherís Note:ìDopant activation and ultralow resistance ohmic contacts to Si-ion-implanted GaN using pressurized rapid thermal annealingî[Appl. Phys. Lett. 85, 5254 (2004)]", Applied Physics Letters, vol. 86, no. 5: AIP, pp. 5254, 2005.
Hansen, PJ., V. Vaithyanathan, Y. Wu, T. Mates, S. Heikman, UK. Mishra, RA. York, DG. Schlom, and JS. Speck, "Rutile films grown by molecular beam epitaxy on GaN and Al Ga N/ Ga N", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 23, no. 2: AVS, pp. 499–506, 2005.
Grundmann, MJ., JS. Speck, and UK. Mishra, "Tunnel junctions in GaN/AlN for optoelectronic applications", Device Research Conference Digest, 2005. DRC'05. 63rd, vol. 1: IEEE, pp. 23–24, 2005.
2004
Hansen, PJ., L. Shen, Y. Wu, A. Stonas, Y. Terao, S. Heikman, D. Buttari, TR. Taylor, SP. DenBaars, UK. Mishra, et al., "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.
Green, DS., UK. Mishra, and JS. Speck, "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.
Armstrong, A., D. Green, AR. Arehart, UK. Mishra, JS. Speck, and SA. Ringel, "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.
Yu, H., L. McCarthy, H. Xing, P. Waltereit, L. Shen, S. Keller, SP. DenBaars, JS. Speck, and UK. Mishra, "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.
Poblenz, C., P. Waltereit, S. Rajan, S. Heikman, UK. Mishra, and JS. Speck, "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.
Armstrong, A., AR. Arehart, B. Moran, SP. DenBaars, UK. Mishra, JS. Speck, and SA. Ringel, "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.
Yu, H., L. McCarthy, S. Rajan, S. Keller, SP. DenBaars, JS. Speck, and UK. Mishra, "Ion implantation for unalloyed ohmic contacts to AlGaN/GaN HEMTs", Device Research Conference, 2004. 62nd DRC. Conference Digest [Includes' Late News Papers' volume]: IEEE, pp. 37–38, 2004.
Craven, MD., F. Wu, A. Chakraborty, B. Imer, UK. Mishra, SP. DenBaars, and JS. Speck, "Microstructural evolution of a-plane GaN grown on a-plane SiC by metalorganic chemical vapor deposition", Applied physics letters, vol. 84, no. 8: AIP, pp. 1281–1283, 2004.

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