Publications

Found 522 results
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2005
Chichibu, SF., A. Uedono, T. Onuma, T. Sota, BA. Haskell, SP. DenBaars, JS. Speck, and S. Nakamura, "Limiting factors of room-temperature nonradiative photoluminescence lifetime in polar and nonpolar GaN studied by time-resolved photoluminescence and slow positron annihilation techniques", Applied Physics Letters, vol. 86, no. 2: AIP, pp. 021914, 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.
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.
Rajan, S., A. Chakraborty, U. K. Mishra, C. Poblenz, P. Waltereit, and J. S. Speck, "MBE-Grown AIGaN/GaN HEMTs on SiC", High Performance Devices, pp. 108–113, 2005.
Keller, S., P. Cantu, C. Moe, Y. Wu, S. Keller, U. K. Mishra, J. S. Speck, and S. P. DenBaars, "Metalorganic chemical vapor deposition conditions for efficient silicon doping in high Al-composition AlGaN films", Japanese journal of applied physics, vol. 44, no. 10R: IOP Publishing, pp. 7227, 2005.
Haskell, B. A., A. Chakraborty, F. Wu, H. Sasano, P. T. Fini, S. P. DenBaars, J. S. Speck, and S. Nakamura, "Microstructure and enhanced morphology of planar nonpolar m-plane GaN grown by hydride vapor phase epitaxy", Journal of electronic materials, vol. 34, no. 4: Springer-Verlag, pp. 357–360, 2005.
Chakraborty, A., T. J. Baker, B. A. Haskell, F. Wu, J. S. Speck, S. P. DenBaars, S. Nakamura, and U. K. Mishra, "Milliwatt power blue InGaN/GaN light-emitting diodes on semipolar GaN templates", Japanese journal of applied physics, vol. 44, no. 7L: IOP Publishing, pp. L945, 2005.
Chakraborty, A., T. J. Baker, B. A. Haskell, F. Wu, J. S. Speck, S. P. Denbaars>, S. Nakamura, and U. K. Mishra, "Milliwatt Power Blue InGaN/GaN Light-Emitting Diodes on Semipolar GaN Templates", Japanese Journal of Applied Physics, vol. 44, pp. L945, 2005.
Akopian, N., G. Bahir, D. Gershoni, MD. Craven, JS. Speck, and SP. DenBaars, "Optical evidence for lack of polarization in (11 2\= 0) oriented GaN/(AlGa) N quantum structures", Applied Physics Letters, vol. 86, no. 20: AIP, pp. 202104, 2005.
Masui, H., A. Chakraborty, B. A. Haskell, U. K. Mishra, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Polarized light emission from nonpolar InGaN light-emitting diodes grown on a bulk m-plane GaN substrate", Japanese journal of applied physics, vol. 44, no. 10L: IOP Publishing, pp. L1329, 2005.
Chakraborty, A., S. Keller, C. Meier, B. A. Haskell, S. Keller, P. Waltereit, S. P. DenBaars, S. Nakamura, J. S. Speck, and U. K. Mishra, "Properties of nonpolar a-plane InGaN/ GaN multiple quantum wells grown on lateral epitaxially overgrown a-plane GaN", Applied Physics Letters, vol. 86, no. 3: AIP, pp. 031901, 2005.
Chichibu, SF., T. Koida, MD. Craven, BA. Haskell, T. Onuma, T. Sota, JS. Speck, SP. DenBaars, and S. Nakamura, "Reduction of bound-state and nonradiative defect densities in nonpolar (11&2macr; 0) AlGaN/GaN quantum wells by the use of lateral epitaxial overgrowth technique", physica status solidi (c), vol. 2, no. 7: WILEY-VCH Verlag, pp. 2700–2703, 2005.
Chichibu, SF., T. Koida, MD. Craven, BA. Haskell, T. Onuma, T. Sota, JS. Speck, SP. DenBaars, and S. Nakamura, "Reduction of bound-state and nonradiative defect densities in nonpolar (11&2macr; 0) AlGaN/GaN quantum wells by the use of lateral epitaxial overgrowth technique", physica status solidi (c), vol. 2, no. 7: WILEY-VCH Verlag, pp. 2700–2703, 2005.
Cantu, P., F. Wu, P. Waltereit, S. Keller, AE. Romanov, SP. DenBaars, and JS. Speck, "Role of inclined threading dislocations in stress relaxation in mismatched layers", Journal of applied physics, vol. 97, no. 10: AIP, pp. 103534, 2005.
Ueda, O., H. Amano, S. Fujita, K. Kishino, K. Hiramatsu, M. Kawasaki, S. Chichibu, S. Niki, H. Hirayama, J. Speck, et al., Selected topics in applied physics III-Physics of UV materials and devices and their applications: JAPAN SOC APPLIED PHYSICS KUDAN-KITA BUILDING 5TH FLOOR, 1-12-3 KUDAN-KITA, CHIYODA-KU, TOKYO, 102-0073, JAPAN, 2005.
2004
Katona, TM., MD. Craven, JS. Speck, and SP. DenBaars, "Cathodoluminescence study of deep ultraviolet quantum wells grown on maskless laterally epitaxial overgrown AlGaN", Applied physics letters, vol. 85, no. 8: AIP, pp. 1350–1352, 2004.
Gao, Y., MD. Craven, JS. Speck, SP. Den Baars, and EL. Hu, "Dislocation-and crystallographic-dependent photoelectrochemical wet etching of gallium nitride", Applied physics letters, vol. 84, no. 17: AIP, pp. 3322–3324, 2004.
Sun, Y. Jun, O. Brandt, S. Cronenberg, S. Dhar, H. T. Grahn, K. H. Ploog, P. Waltereit, and J. S. Speck, "Erratum: Nonpolar In x Ga 1- x N/G a N (1 1\= 0 0) multiple quantum wells grown on γ- L i A l O 2 (100) by plasma-assisted molecular-beam epitaxy [Phys. Rev. B 67, 041306 (R)(2003)]", Physical Review B, vol. 69, no. 12: APS, pp. 129902, 2004.
Koida, T., SF. Chichibu, T. Sota, MD. Craven, BA. Haskell, JS. Speck, SP. DenBaars, and S. Nakamura, "Improved quantum efficiency in nonpolar (112Ø0) AlGaN/GaN quantum wells grown on GaN prepared by lateral epitaxial overgrowth", Applied physics letters, vol. 84, no. 19: AIP, pp. 3768–3770, 2004.
Koida, T., SF. Chichibu, T. Sota, MD. Craven, BA. Haskell, JS. Speck, SP. DenBaars, and S. Nakamura, "Improved quantum efficiency in nonpolar (112Ø0) AlGaN/GaN quantum wells grown on GaN prepared by lateral epitaxial overgrowth", Applied physics letters, vol. 84, no. 19: AIP, pp. 3768–3770, 2004.
Lombardet, B., R. Ferrini, LA. Dunbar, R. Houdré, C. Cuisin, O. Drisse, F. Lelarge, F. Pommereau, F. Poingt, GH. Duan, et al., "LASERS, OPTICS, AND OPTOELECTRONICS", Appl. Phys. Lett, vol. 85, no. 22, pp. 5391, 2004.
Katona, TM., P. Cantu, S. Keller, Y. Wu, JS. Speck, and SP. DenBaars, "Maskless lateral epitaxial overgrowth of high-aluminum-content Al x Ga 1- x N", Applied physics letters, vol. 84, no. 24: AIP, pp. 5025–5027, 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.
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.
Chakraborty, A., H. Xing, MD. Craven, S. Keller, T. Mates, JS. Speck, SP. DenBaars, and UK. Mishra, "Nonpolar a-plane p-type GaN and p-n Junction Diodes", Journal of applied physics, vol. 96, no. 8: AIP, pp. 4494–4499, 2004.

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