Publications

Found 647 results
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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.
Farahani, SK. Vasheghani, TD. Veal, AM. Sanchez, O. Bierwagen, ME. White, S. Gorfman, PA. Thomas, JS. Speck, and CF. McConville, "Influence of charged-dislocation density variations on carrier mobility in heteroepitaxial semiconductors: The case of SnO 2 on sapphire", Physical Review B, vol. 86, no. 24: American Physical Society, pp. 245315, 2012.
Wu, Y-R., C-P. Wang, K-C. Wang, and J. S. Speck, "Influences of Indium Fluctuation to carrier transport and the Current-voltage Turn-on Behavior in the InGaN Quantum Well LEDs", CLEO: Applications and Technology: Optical Society of America, pp. JTh2A–72, 2012.
Wu, Y-R., C-P. Wang, K-C. Wang, and J. S. Speck, "Influences of Indium Fluctuation to carrier transport and the Current-voltage Turn-on Behavior in the InGaN Quantum Well LEDs", CLEO: Applications and Technology: Optical Society of America, pp. JTh2A–72, 2012.
Wu, Y-R., C-P. Wang, K-C. Wang, and J. S. Speck, "Influences of Indium Fluctuation to carrier transport and the Current-voltage Turn-on Behavior in the InGaN Quantum Well LEDs", CLEO: Applications and Technology: Optical Society of America, pp. JTh2A–72, 2012.
Speck, J. S., C. C. A. Weisbuch, and E. de Nazaret Matioli, Light emitting devices with embedded void-gap structures through bonding of structured materials on active devices, jan # " 26", 2012.
Farrell, RM., EC. Young, F. Wu, SP. DenBaars, and JS. Speck, "Materials and growth issues for high-performance nonpolar and semipolar light-emitting devices", Semiconductor Science and Technology, vol. 27, no. 2: IOP Publishing, pp. 024001, 2012.
Wong, M. Hoi, F. Wu, C. A. Hurni, S. Choi, J. S. Speck, and U. K. Mishra, "Molecular beam epitaxy of InAlN lattice-matched to GaN with homogeneous composition using ammonia as nitrogen source", Applied Physics Letters, vol. 100, no. 7: AIP, pp. 072107, 2012.
Wong, M. Hoi, F. Wu, C. A. Hurni, S. Choi, J. S. Speck, and U. K. Mishra, "Molecular beam epitaxy of InAlN lattice-matched to GaN with homogeneous composition using ammonia as nitrogen source", Applied Physics Letters, vol. 100, no. 7: AIP, pp. 072107, 2012.
Choi, S., F. Wu, R. Shivaraman, E. C. Young, and J. S. Speck, "Observation of columnar microstructure in lattice-matched InAlN/GaN grown by plasma assisted molecular beam epitaxy", Applied Physics Letters, vol. 100, no. 23: AIP, pp. 232102, 2012.
Hodges, C., N. Killat, SW. Kaun, MH. Wong, F. Gao, T. Palacios, UK. Mishra, JS. Speck, D. Wolverson, and M. Kuball, "Optical investigation of degradation mechanisms in AlGaN/GaN high electron mobility transistors: Generation of non-radiative recombination centers", Applied Physics Letters, vol. 100, no. 11: AIP, pp. 112106, 2012.
Hodges, C., N. Killat, SW. Kaun, MH. Wong, F. Gao, T. Palacios, UK. Mishra, JS. Speck, D. Wolverson, and M. Kuball, "Optical investigation of degradation mechanisms in AlGaN/GaN high electron mobility transistors: Generation of non-radiative recombination centers", Applied Physics Letters, vol. 100, no. 11: AIP, pp. 112106, 2012.
Matioli, E. de Nazaret, C. C. A. Weisbuch, J. S. Speck, and E. L. Hu, Optoelectronic devices with embedded void structures, 2012.
Koslow, I. L., M. T. Hardy, P. Shan Hsu, P-Y. Dang, F. Wu, A. Romanov, Y-R. Wu, E. C. Young, S. Nakamura, J. S. Speck, et al., "Performance and polarization effects in (11 2\= 2) long wavelength light emitting diodes grown on stress relaxed InGaN buffer layers", Applied Physics Letters, vol. 101, no. 12: AIP, pp. 121106, 2012.
Koslow, I. L., M. T. Hardy, P. Shan Hsu, P-Y. Dang, F. Wu, A. Romanov, Y-R. Wu, E. C. Young, S. Nakamura, J. S. Speck, et al., "Performance and polarization effects in (11 2\= 2) long wavelength light emitting diodes grown on stress relaxed InGaN buffer layers", Applied Physics Letters, vol. 101, no. 12: AIP, pp. 121106, 2012.
Hardy, M. T., P. Shan Hsu, F. Wu, I. L. Koslow, E. C. Young, S. Nakamura, A. E. Romanov, S. P. DenBaars, and J. S. Speck, "Trace analysis of non-basal plane misfit stress relaxation in (20 2\= 1) and (30 3\= 1\=) semipolar InGaN/GaN heterostructures", Applied Physics Letters, vol. 100, no. 20: AIP, pp. 202103, 2012.
2011
Bryant, B. N., D. S. Kamber, F. Wu, S. Nakamura, and J. S. Speck, "Aluminum nitride grown on lens shaped patterned sapphire by hydride vapor phase epitaxy", physica status solidi (c), vol. 8, no. 5: Wiley Online Library, pp. 1463–1466, 2011.
Wong, M. Hoi, U. Singisetti, J. Lu, J. S. Speck, and U. K. Mishra, "Anomalous output conductance in N-polar GaN-based MIS-HEMTs", Device Research Conference (DRC), 2011 69th Annual: IEEE, pp. 211–212, 2011.
Romanov, A. E., E. C. Young, F. Wu, A. Tyagi, C. S. Gallinat, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Basal plane misfit dislocations and stress relaxation in III-nitride semipolar heteroepitaxy", Journal of Applied Physics, vol. 109, no. 10: AIP, pp. 103522, 2011.
Simeonov, D., MY. Tsai, HT. Chen, C. Weisbuch, and J. Speck, "Bonding of nitride based LEDs on tin oxide templates for advanced optoelectronic devices", Electronics Letters, vol. 47, no. 9: IET, pp. 556–558, 2011.
Kaun, S. W., M. Hoi Wong, S. Dasgupta, S. Choi, R. Chung, U. K. Mishra, and J. S. Speck, "Device physics-024101 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, 2011.
Sasikumar, A., A. Arehart, S. Kaun, M. Hoi Wong, J. Speck, U. Mishra, and S. Ringe, "Direct Correlation between EC-0. 57 eV Trap Generation and Field-Induced Degradation in AlGaN/GaN High Electron Mobility Transistors", 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.
Rangel, E., E. Matioli, Y-S. Choi, C. Weisbuch, J. S. Speck, and E. L. Hu, "Directionality control through selective excitation of low-order guided modes in thin-film InGaN photonic crystal light-emitting diodes", Applied physics letters, vol. 98, no. 8: AIP, pp. 081104, 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.

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