Publications

Found 215 results
Author Title Type [ Year(Asc)]
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2012
Zhang, Z., CA. Hurni, AR. Arehart, J. Yang, RC. Myers, JS. Speck, and SA. Ringel, "Deep traps in nonpolar m-plane GaN grown by ammonia-based molecular beam epitaxy", Applied Physics Letters, vol. 100, no. 5: AIP, pp. 052114, 2012.
Mazumder, B., MH. Wong, CA. Hurni, JY. Zhang, UK. Mishra, and JS. Speck, "Erratum:ìAsymmetric interfacial abruptness in N-polar and Ga-polar GaN/AlN/GaN heterostructuresî[Appl. Phys. Lett. 101, 091601 (2012)]", Applied Physics Letters, vol. 101, no. 22: AIP, pp. 229902, 2012.
Zhao, Y., S. Tanaka, C-Y. Huang, D. F. Feezell, J. S. Speck, S. P. DenBaars, and S. Nakamura, High indium uptake and high polarization ratio for group-iii nitride optoelectronic devices fabricated on a semipolar (20-2-1) plane of a gallium nitride substrate, 2012.
Pan, C-C., S. Tanaka, F. Wu, Y. Zhao, J. S. Speck, S. Nakamura, S. P. DenBaars, and D. Feezell, "High-power, low-efficiency-droop semipolar (2021) single-quantum-well blue light-emitting diodes", Applied Physics Express, vol. 5, no. 6: IOP Publishing, pp. 062103, 2012.
Zhao, Y., Q. Yan, C-Y. Huang, S-C. Huang, P. Shan Hsu, S. Tanaka, C-C. Pan, Y. Kawaguchi, K. Fujito, C. G. Van de Walle, et al., "Indium incorporation and emission properties of nonpolar and semipolar InGaN quantum wells", Applied Physics Letters, vol. 100, no. 20: AIP, pp. 201108, 2012.
Zhang, Z., CA. Hurni, AR. Arehart, JS. Speck, and SA. Ringel, "Influence of V/III growth flux ratio on trap states in m-plane GaN grown by ammonia-based molecular beam epitaxy", Applied Physics Letters, vol. 101, no. 15: AIP, pp. 152104, 2012.
Pan, C-C., T. Gilbert, N. Pfaff, S. Tanaka, Y. Zhao, D. Feezell, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Reduction in thermal droop using thick single-quantum-well structure in semipolar (2021) blue light-emitting diodes", Applied Physics Express, vol. 5, no. 10: IOP Publishing, pp. 102103, 2012.
Zhao, Y., C-Y. Huang, S. Tanaka, C-C. Pan, K. Fujito, D. Feezell, J. S. Speck, S. DenBaars, and S. Nakamura, "Semipolar (20-2-1) Blue and Green InGaN Light-Emitting Diodes", CLEO: Applications and Technology: Optical Society of America, pp. JTh4J–2, 2012.
Huang, C-Y., Y. Zhao, M. Hardy, D. Feezell, J. S. Speck, S. DenBaars, and S. Nakamura, "Semipolar (20-2-1) Laser Diodes (λ= 505nm) with Wavelength-Stable InGaN/GaN Quantum Wells", CLEO: Science and Innovations: Optical Society of America, pp. CTu2N–5, 2012.
Zhong, H., A. Tyagi, J. Stephen Speck, S. P. DenBaars, and S. Nakamura, Thin p-type gallium nitride and aluminum gallium nitride electron-blocking layer free gallium nitride-based light emitting diodes, 2012.
2011
Roy, T., Y. S. Puzyrev, E. Xia Zhang, S. DasGupta, S. A. Francis, D. M. Fleetwood, R. D. Schrimpf, U. K. Mishra, J. S. Speck, and S. T. Pantelides, "1/f Noise in GaN HEMTs grown under Ga-rich, N-rich, and NH3-rich conditions", Microelectronics Reliability, vol. 51, no. 2: Pergamon, pp. 212–216, 2011.
Prosa, TJ., PH. Clifton, H. Zhong, A. Tyagi, R. Shivaraman, SP. DenBaars, S. Nakamura, and JS. Speck, "Atom probe analysis of interfacial abruptness and clustering within a single In x Ga 1- x N quantum well device on semipolar (10 1\= 1\=) GaN substrate", Applied physics letters, vol. 98, no. 19: AIP, pp. 191903, 2011.
Zhang, Z., C. Hurni, A. Arehart, J. Speck, and S. Ringel, "Deep Traps in M-Plane GaN Grown by Ammonia 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.
Zhao, Y., S. Tanaka, Q. Yan, C-Y. Huang, R. B. Chung, C-C. Pan, K. Fujito, D. Feezell, C. G. Van de Walle, J. S. Speck, et al., "High optical polarization ratio from semipolar (20 2\= 1\=) blue-green InGaN/GaN light-emitting diodes", Applied physics letters, vol. 99, no. 5: AIP, pp. 051109, 2011.
Zhao, Y., S. Tanaka, R. Chung, C-C. Pan, K. Fujito, D. Feezell, J. Speck, S. DenBaars, and S. Nakamura, "Highly Polarized Spontaneous Emission from Semipolar(20-2-1) InGaN/GaN Light-Emitting Diodes", 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.
Zhao, Y., S. Tanaka, C-C. Pan, K. Fujito, D. Feezell, J. S. Speck, S. P. DenBaars, and S. Nakamura, "High-power blue-violet semipolar (2021) InGaN/GaN light-emitting diodes with low efficiency droop at 200 A/cm2", Applied physics express, vol. 4, no. 8: IOP Publishing, pp. 082104, 2011.
Huang, C-Y., Q. Yan, Y. Zhao, K. Fujito, D. Feezell, C. G. Van de Walle, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Influence of Mg-doped barriers on semipolar (20 2\= 1) multiple-quantum-well green light-emitting diodes", Applied Physics Letters, vol. 99, no. 14: AIP, pp. 141114, 2011.
Roy, T., EX. Zhang, YS. Puzyrev, X. Shen, DM. Fleetwood, RD. Schrimpf, G. Koblmueller, R. Chu, C. Poblenz, N. Fichtenbaum, et al., "Temperature-dependence and microscopic origin of low frequency 1/f noise in GaN/AlGaN high electron mobility transistors", Applied Physics Letters, vol. 99, no. 20: AIP, pp. 203501, 2011.
2010
Zhong, H., J. F. Kaeding, R. Sharma, J. S. Speck, S. P. DenBaars, and S. Nakamura, Method for growth of semipolar (Al, In, Ga, B) N optoelectronic devices, 2010.
Shen, H., GA. Garrett, M. Wraback, H. Zhong, A. Tyagi, SP. DenBaars, S. Nakamura, and JS. Speck, "Polarization field crossover in semi-polar InGaN/GaN single quantum wells", physica status solidi (c), vol. 7, no. 10: Wiley Online Library, pp. 2378–2381, 2010.
2009
Shen, H., M. Wraback, H. Zhong, A. Tyagi, SP. DenBaars, S. Nakamura, and JS. Speck, "Determination of polarization field in a semipolar (11 2\= 2) In Ga/ Ga N single quantum well using Franz–Keldysh oscillations in electroreflectance", Applied Physics Letters, vol. 94, no. 24: AIP, pp. 241906, 2009.
Zhong, H., A. Tyagi, N. Pfaff, M. Saito, K. Fujito, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Enhancing the light extraction efficiency of blue semipolar (1011) nitride-based light emitting diodes through surface patterning", Japanese Journal of Applied Physics, vol. 48, no. 3R: IOP Publishing, pp. 030201, 2009.
Xu, G., Y. J. Ding, I. B. Zotova, C. E. Stutz, D. E. Diggs, N. Fernelius, F. K. Hopkins, C. S. Gallinat, G. Koblmüller, and J. S. Speck, "Observation of clamping of photoluminescence intensities from nonlinear degenerate electron gas in InN", International Quantum Electronics Conference: Optical Society of America, pp. IMH6, 2009.
Shen, P. H., G. Garrett, M. Wraback, H. Zhong, A. Tyagi, J. Speck, and S. Nakamura, "Piezoelectric Field in Semi-Polar InGaN/GaN Quantum Wells", Meeting Abstracts, no. 21: The Electrochemical Society, pp. 885–885, 2009.
Masui, H., D. S. Kamber, S. E. Brinkley, F. Wu, T. J. Baker, H. Zhong, M. Iza, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Spontaneous formation of ${$1 1Ø 0 1$}$ InGaN quantum wells on a (1 1 2Ø 2) GaN template and their electroluminescence characteristics", Semiconductor Science and Technology, vol. 25, no. 1: IOP Publishing, pp. 015003, 2009.

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