Publications

Found 909 results
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2011
Kaun, S. W., M. Hoi Wong, S. Dasgupta, S. Choi, R. Chung, U. K. Mishra, and J. S. Speck, "Effects of threading dislocation density on the gate leakage of AlGaN/GaN heterostructures for high electron mobility transistors", Applied physics express, vol. 4, no. 2: IOP Publishing, pp. 024101, 2011.
Mayer, M. A., S. Choi, O. Bierwagen, H. M. Smith III, E. E. Haller, J. S. Speck, and W. Walukiewicz, "Electrical and optical properties of p-type InN", Journal of Applied Physics, vol. 110, no. 12: AIP, pp. 123707, 2011.
Masui, H., H. Yamada, K. Iso, J. S. Speck, S. Nakamura, and S. P. DenBaars, Enhancement of optical polarization of nitride light-emitting diodes by increased indium incorporation, 2011.
Fujiwara, T., R. Yeluri, D. Denninghoff, J. Lu, S. Keller, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Enhancement-mode m-plane AlGaN/GaN heterojunction field-effect transistors with+ 3 V of threshold voltage using Al2O3 deposited by atomic layer deposition", Applied physics express, vol. 4, no. 9: IOP Publishing, pp. 096501, 2011.
Singisetti, U., M. Hoi Wong, S. Dasgupta, J. S. Speck, and U. K. Mishra, "Enhancement-mode N-polar GaN metal–insulator–semiconductor field effect transistors with current gain cutoff frequency of 120 GHz", Applied physics express, vol. 4, no. 2: IOP Publishing, pp. 024103, 2011.
Singisetti, U., M. Hoi Wong, S. Dasgupta, J. S. Speck, and U. K. Mishra, "Enhancement-Mode N-Polar GaN Metal–Insulator–Semiconductor Field Effect Transistors with Current Gain Cutoff Frequency of 120 GHz", Applied Physics Express, vol. 4, pp. 024103, 2011.
Singisetti, U., M. Hoi Wong, S. Dasgupta, B. Swenson, B. J. Thibeault, J. S. Speck, U. K. Mishra, and others, "Enhancement-mode N-polar GaN MISFETs with self-aligned source/drain regrowth", IEEE Electron Device Letters, vol. 32, no. 2: IEEE, pp. 137–139, 2011.
Wong, MH., DF. Brown, ML. Schuette, H. Kim, V. Balasubramanian, W. Lu, JS. Speck, and UK. Mishra, "Erratum for ëX-band power performance of N-face GaN MIS-HEMTsí", Electronics Letters, vol. 47, no. 6: IET Digital Library, pp. 416–416, 2011.
Dasgupta, S., A. Raman, J. S. Speck, U. K. Mishra, and others, "Experimental demonstration of III-nitride hot-electron transistor with GaN base", IEEE Electron Device Letters, vol. 32, no. 9: IEEE, pp. 1212–1214, 2011.
Keller, S., Y. Dora, S. Chowdhury, F. Wu, X. Chen, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Growth and characterization of N-polar GaN and AlGaN/GaN HEMTs on (111) silicon", physica status solidi (c), vol. 8, no. 7-8: Wiley Online Library, pp. 2086–2088, 2011.
Haskell, B. A., M. B. McLaurin, S. P. DenBaars, J. Stephen Speck, and S. Nakamura, Growth of planar reduced dislocation density m-plane gallium nitride by hydride vapor phase epitaxy, jun # " 7", 2011.
Haskell, B. A., M. B. McLaurin, S. P. DenBaars, J. Stephen Speck, and S. Nakamura, Growth of planar reduced dislocation density m-plane gallium nitride by hydride vapor phase epitaxy, 2011.
Dasgupta, S., S. Choi, F. Wu, J. S. Speck, U. K. Mishra, and others, "Growth, structural, and electrical characterizations of N-polar InAlN by plasma-assisted molecular beam epitaxy", Applied physics express, vol. 4, no. 4: IOP Publishing, pp. 045502, 2011.
Lang, J., C. Neufeld, C. Hurni, S. Cruz, E. Matioli, U. Mishra, and J. Speck, "High External Quantum Efficiency and Fill-Factor InGaN-Based Solar Cells Grown by NH (3)-MBE", Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States.[np]. Jun: Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States, 2011.
Lang, J., C. Neufeld, C. Hurni, S. Cruz, E. Matioli, U. Mishra, and J. Speck, "High External Quantum Efficiency and Fill-Factor InGaN-Based Solar Cells Grown by NH (3)-MBE", Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States.[np]. Jun: Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States, 2011.
Lang, J. R., CJ. Neufeld, CA. Hurni, SC. Cruz, E. Matioli, UK. Mishra, and JS. Speck, "High external quantum efficiency and fill-factor InGaN/GaN heterojunction solar cells grown by NH 3-based molecular beam epitaxy", Applied Physics Letters, vol. 98, no. 13: AIP, pp. 131115, 2011.
Lang, J. R., CJ. Neufeld, CA. Hurni, SC. Cruz, E. Matioli, UK. Mishra, and JS. Speck, "High external quantum efficiency and fill-factor InGaN/GaN heterojunction solar cells grown by NH 3-based molecular beam epitaxy", Applied Physics Letters, vol. 98, no. 13: AIP, pp. 131115, 2011.
Matioli, E., C. Neufeld, M. Iza, S. C. Cruz, A. A. Al-Heji, X. Chen, R. M. Farrell, S. Keller, S. DenBaars, U. Mishra, et al., "High internal and external quantum efficiency InGaN/GaN solar cells", Applied Physics Letters, vol. 98, no. 2: AIP, pp. 021102, 2011.
Matioli, E., C. Neufeld, M. Iza, S. C. Cruz, A. A. Al-Heji, X. Chen, R. M. Farrell, S. Keller, S. DenBaars, U. Mishra, et al., "High internal and external quantum efficiency InGaN/GaN solar cells", Applied Physics Letters, vol. 98, no. 2: AIP, pp. 021102, 2011.
Farrell, R. M., C. J. Neufeld, S. C. Cruz, J. R. Lang, M. Iza, S. Keller, S. Nakamura, SP. DenBaars, UK. Mishra, and JS. Speck, "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.
Raring, J. W., M. C. Schmidt, C. Poblenz, B. Li, Y-C. Chang, M. J. Mondry, Y-. Da Lin, M. R. Krames, R. Craig, J. S. Speck, et al., "High-performance blue and green laser diodes based on nonpolar/semipolar bulk GaN substrates", Gallium Nitride Materials and Devices Vi, vol. 7939: International Society for Optics and Photonics, pp. 79390Y, 2011.
Schmidt, M. C., C. Poblenz, Y-C. Chang, B. Li, M. J. Mondry, J. Iveland, M. R. Krames, R. Craig, J. W. Raring, J. S. Speck, et al., "High-performance blue and green laser diodes based on nonpolar/semipolar GaN substrates", Laser Technology for Defense and Security VII, vol. 8039: International Society for Optics and Photonics, pp. 80390D, 2011.
Rangel, E., E. Matioli, J. S. Speck, C. Weisbuch, and E. Hu, "Impact of the vertical layer structure on the emission directionality of thin-film InGaN photonic crystal LEDs", CLEO: Science and Innovations: Optical Society of America, pp. CMA3, 2011.
Ťapajna, M., SW. Kaun, MH. Wong, F. Gao, T. Palacios, UK. Mishra, JS. Speck, and M. Kuball, "Influence of threading dislocation density on early degradation in AlGaN/GaN high electron mobility transistors", Applied Physics Letters, vol. 99, no. 22: AIP, pp. 223501, 2011.
Toledo, N. G., S. C. Cruz, C. J. Neufeld, J. R. Lang, M. A. Scarpulla, T. Buehl, A. C. Gossard, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Integrated non-III-nitride/III-nitride tandem solar cell", Device Research Conference (DRC), 2011 69th Annual: IEEE, pp. 265–266, 2011.

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