Publications

Found 632 results
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2005
Poblenz, C., P. Waltereit, and JS. Speck, "Uniformity and control of surface morphology during growth of GaN by molecular beam epitaxy", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 23, no. 4: AVS, pp. 1379–1385, 2005.
2004
Hansen, PJ., L. Shen, Y. Wu, A. Stonas, Y. Terao, S. Heikman, D. Buttari, TR. Taylor, SP. DenBaars, UK. Mishra, et al., "Al Ga N/ Ga N metal-oxide-semiconductor heterostructure field-effect transistors using barium strontium titanate", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 22, no. 5: AVS, pp. 2479–2485, 2004.
Hashimoto, T., K. Fujito, F. Wu, B. A. Haskell, P. T. Fini, J. S. Speck, and S. Nakamura, "Ammonothermal growth of GaN utilizing negative temperature dependence of solubility in basic ammonia", MRS Online Proceedings Library Archive, vol. 831: Cambridge University Press, 2004.
Miller, EJ., ET. Yu, P. Waltereit, and JS. Speck, "Analysis of reverse-bias leakage current mechanisms in GaN grown by molecular-beam epitaxy", Applied physics letters, vol. 84, no. 4: AIP, pp. 535–537, 2004.
Waltereit, P., H. Sato, C. Poblenz, DS. Green, JS. Brown, M. McLaurin, T. Katona, SP. DenBaars, JS. Speck, J-H. Liang, et al., "Blue GaN-based light-emitting diodes grown by molecular-beam epitaxy with external quantum efficiency greater than 1.5%", Applied physics letters, vol. 84, no. 15: AIP, pp. 2748–2750, 2004.
Yu, H., L. McCarthy, H. Xing, P. Waltereit, L. Shen, S. Keller, SP. DenBaars, JS. Speck, and UK. Mishra, "Dopant activation and ultralow resistance ohmic contacts to Si-ion-implanted GaN using pressurized rapid thermal annealing", Applied physics letters, vol. 85, no. 22: AIP, pp. 5254–5256, 2004.
Poblenz, C., P. Waltereit, S. Rajan, S. Heikman, UK. Mishra, and JS. Speck, "Effect of carbon doping on buffer leakage in AlGaN/GaN high electron mobility transistors", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 22, no. 3: AVS, pp. 1145–1149, 2004.
Wu, Y., A. Hanlon, JF. Kaeding, R. Sharma, PT. Fini, S. Nakamura, and JS. Speck, "Effect of nitridation on polarity, microstructure, and morphology of AlN films", Applied physics letters, vol. 84, no. 6: AIP, pp. 912–914, 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.
Brown, J., F. Wu, PM. Petroff, and JS. Speck, "GaN quantum dot density control by rf-plasma molecular beam epitaxy", Applied physics letters, vol. 84, no. 5: AIP, pp. 690–692, 2004.
Kaeding, J. F., Y. Wu, T. Fujii, R. Sharma, P. T. Fini, J. S. Speck, and S. Nakamura, "Growth and laser-assisted liftoff of low dislocation density AlN thin films for deep-UV light-emitting diodes", Journal of crystal growth, vol. 272, no. 1-4: North-Holland, pp. 257–263, 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.
Rajan, S., P. Waltereit, C. Poblenz, S. J. Heikman, D. S. Green, J. S. Speck, and U. K. Mishra, "Power performance of AlGaN-GaN HEMTs grown on SiC by plasma-assisted MBE", IEEE Electron Device Letters, vol. 25, no. 5: IEEE, pp. 247–249, 2004.
Moran, B., F. Wu, AE. Romanov, UK. Mishra, SP. DenBaars, and JS. Speck, "Structural and morphological evolution of GaN grown by metalorganic chemical vapor deposition on SiC substrates using an AlN initial layer", Journal of Crystal Growth, vol. 273, no. 1-2: North-Holland, pp. 38–47, 2004.
Waltereit, P., C. Poblenz, S. Rajan, F. Wu, U. K. Mishra, and J. S. Speck, "Structural properties of GaN buffer layers on 4H-SiC (0001) grown by plasma-assisted molecular beam epitaxy for high electron mobility transistors", Japanese journal of applied physics, vol. 43, no. 12A: IOP Publishing, pp. L1520, 2004.
Waltereit, P., C. Poblenz, S. Rajan, F. Wu, U. K. Mishra, and J. S. Speck, "Structural properties of GaN buffer layers on 4H-SiC (0001) grown by plasma-assisted molecular beam epitaxy for high electron mobility transistors", Japanese journal of applied physics, vol. 43, no. 12A: IOP Publishing, pp. L1520, 2004.
Craven, MD., P. Waltereit, JS. Speck, and SP. DenBaars, "Well-width dependence of photoluminescence emission from a-plane GaN/AlGaN multiple quantum wells", Applied physics letters, vol. 84, no. 4: AIP, pp. 496–498, 2004.
2003
Sato, H., P. Waltereit, D. S. Green, C. Poblenz, T. Katona, S. P. DenBaars, J. S. Speck, H. Tamura, and C. Funaoka, "Blue light-emitting diodes grown by plasma-assisted molecular beam epitaxy", physica status solidi (c), no. 7: Wiley Online Library, pp. 2193–2197, 2003.
Craven, M. D., P. Waltereit, F. Wu, J. S. Speck, and S. P. DenBaars, "Characterization of a-plane GaN/(Al, Ga) N multiple quantum wells grown via metalorganic chemical vapor deposition", Japanese journal of applied physics, vol. 42, no. 3A: IOP Publishing, pp. L235, 2003.
Craven, M. D., P. Waltereit, F. Wu, J. S. Speck, and S. P. DenBaars, "Characterization of a-plane GaN/(Al, Ga) N multiple quantum wells grown via metalorganic chemical vapor deposition", Japanese journal of applied physics, vol. 42, no. 3A: IOP Publishing, pp. L235, 2003.
Simpkins, BS., ET. Yu, P. Waltereit, and JS. Speck, "Correlated scanning Kelvin probe and conductive atomic force microscopy studies of dislocations in gallium nitride", Journal of applied physics, vol. 94, no. 3: AIP, pp. 1448–1453, 2003.
Haskell, BA., F. Wu, MD. Craven, S. Matsuda, PT. Fini, T. Fujii, K. Fujito, SP. DenBaars, JS. Speck, and S. Nakamura, "Defect reduction in (1120) a-plane gallium nitride via lateral epitaxial overgrowth by hydride vapor-phase epitaxy", Applied physics letters, vol. 83, no. 4: AIP, pp. 644–646, 2003.
Wu, Y., JP. Zhang, GS. Cheng, M. Moskovits, and JS. Speck, "Defect Structure of Mg-Doped GaN Nanowires", Microscopy and Microanalysis, vol. 9, no. S02: Cambridge University Press, pp. 344–345, 2003.
Zhang, JP., Y. Wu, GS. Cheng, M. Moskovits, and JS. Speck, "Dislocation-free GaN nanowires", Microscopy and Microanalysis, vol. 9, no. S02: Cambridge University Press, pp. 342–343, 2003.

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