Publications

Found 859 results
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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.
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.
Wang, Q. Jie, C. Yan, N. Yu, C. Pflügl, L. Diehl, F. Capasso, J. Unterhinninghofen, J. Wiersig, T. Edamura, and M. Yamanishi, "Highly unidirectional whispering gallery mode lasers", Conference on Lasers and Electro-Optics/Pacific Rim: Optical Society of America, pp. J143, 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.
Farrell, RM., DA. Haeger, PS. Hsu, MC. Schmidt, K. Fujito, DF. Feezell, SP. DenBaars, JS. Speck, and S. Nakamura, "High-power blue-violet AlGaN-cladding-free m-plane InGaN/GaN laser diodes", Applied Physics Letters, vol. 99, no. 17: AIP, pp. 171113, 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.
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.
Hirai, A., J. S. Speck, S. P. DenBaars, and S. Nakamura, Method for increasing the area of non-polar and semi-polar nitride substrates, 2011.
Wu, F., A. Tyagi, EC. Young, AE. Romanov, K. Fujito, SP. DenBaars, S. Nakamura, and JS. Speck, "Misfit dislocation formation at heterointerfaces in (Al, In) GaN heteroepitaxial layers grown on semipolar free-standing GaN substrates", Journal of Applied Physics, vol. 109, no. 3: AIP, pp. 033505, 2011.
Hsu, P. Shan, E. C. Young, A. E. Romanov, K. Fujito, S. P. DenBaars, S. Nakamura, and J. S. Speck, "Misfit dislocation formation via pre-existing threading dislocation glide in (11 2\= 2) semipolar heteroepitaxy", Applied Physics Letters, vol. 99, no. 8: AIP, pp. 081912, 2011.
Haeger, D. A., C. Holder, R. M. Farrell, P. Shan Hsu, K. M. Kelchner, K. Fujito, D. A. Cohen, S. P. DenBaars, J. S. Speck, and S. Nakamura, "Near UV AlGaN-cladding free nonpolar InGaN/GaN laser diodes", Device Research Conference (DRC), 2011 69th Annual: IEEE, pp. 261–262, 2011.
Craven, M. D., S. Keller, S. P. DenBaars, T. Margalith, J. Stephen Speck, S. Nakamura, and U. K. Mishra, Non-polar (Al, B, In, Ga) N quantum well and heterostructure materials and devices, 2011.
Denninghoff, D., S. Dasgupta, J. Lu, D. Brown, S. Keller, J. Speck, and U. Mishra, "N-Polar GaN HEMTs Grown by MBE and MOCVD with fmax of 255 and 250 GHz, Respectively", 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.
Denninghoff, D., S. Dasgupta, J. Lu, D. Brown, S. Keller, J. Speck, and U. Mishra, "N-Polar GaN HEMTs Grown by MBE and MOCVD with fmax of 255 and 250 GHz, Respectively", 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.
Denninghoff, DJ., S. Dasgupta, DF. Brown, S. Keller, J. Speck, and UK. Mishra, "N-polar GaN HEMTs with f max> 300 GHz using high-aspect-ratio T-gate design", Device Research Conference (DRC), 2011 69th Annual: IEEE, pp. 269–270, 2011.
Denninghoff, DJ., S. Dasgupta, DF. Brown, S. Keller, J. Speck, and UK. Mishra, "N-polar GaN HEMTs with f max> 300 GHz using high-aspect-ratio T-gate design", Device Research Conference (DRC), 2011 69th Annual: IEEE, pp. 269–270, 2011.
Denninghoff, D. J., S. Dasgupta, D. F. Brown, S. Keller, J. Speck, and U. K. Mishra, "N-polar GaN HEMTs with fmax>300 GHz using high-aspect-ratio T-gate design", 69th Device Research Conference, June, 2011.
Denninghoff, D. J., S. Dasgupta, D. F. Brown, S. Keller, J. Speck, and U. K. Mishra, "N-polar GaN HEMTs with fmax>300 GHz using high-aspect-ratio T-gate design", 69th Device Research Conference, June, 2011.
Dasgupta, S., S. Keller, J. S. Speck, U. K. Mishra, and others, "N-Polar GaN/AlN MIS-HEMT With $ f_ ${$$\backslash$rm MAX$}$ $ of 204 GHz for Ka-Band Applications", IEEE Electron Device Letters, vol. 32, no. 12: IEEE, pp. 1683–1685, 2011.
Hardy, M., F. Wu, P. Shan Hsu, I. Koslow, E. Young, J. Speck, and S. DenBaars, "Observation of m-Plane Slip and Relaxation Orthogonal to the Projected c-Direction in(20-21) InGaN/GaN Partially Relaxed Layers", 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.
Wu, F., EC. Young, I. Koslow, MT. Hardy, PS. Hsu, AE. Romanov, S. Nakamura, SP. DenBaars, and JS. Speck, "Observation of non-basal slip in semipolar InxGa1-xN/GaN heterostructures", Applied Physics Letters, vol. 99, no. 25: AIP, pp. 251909, 2011.
Neufeld, C. J., S. C. Cruz, R. M. Farrell, M. Iza, S. Keller, S. Nakamura, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Observation of positive thermal power coefficient in InGaN/GaN quantum well solar cells", Applied Physics Letters, vol. 99, no. 7: AIP, pp. 071104, 2011.
Chung, R. B., Z. Chen, J. S. Speck, S. P. DenBaars, and S. Nakamura, Optoelectronic device based on non-polar and semi-polar aluminum indium nitride and aluminum indium gallium nitride alloys, 2011.

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