Publications

Found 632 results
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2003
Sun, Y. Jun, O. Brandt, S. Cronenberg, S. Dhar, H. T. Grahn, K. H. Ploog, P. Waltereit, and J. S. Speck, "Nonpolar In x Ga 1- x N/GaN (11\= 0 0) multiple quantum wells grown on γ- LiAlO 2 (100) by plasma-assisted molecular-beam epitaxy", Physical Review B, vol. 67, no. 4: APS, pp. 041306, 2003.
Miller, EJ., DM. Schaadt, ET. Yu, XL. Sun, LJ. Brillson, P. Waltereit, and JS. Speck, "Origin and microscopic mechanism for suppression of leakage currents in Schottky contacts to GaN grown by molecular-beam epitaxy", Journal of applied physics, vol. 94, no. 12: AIP, pp. 7611–7615, 2003.
Winzer, A. T., R. Goldhahn, C. Buchheim, O. Ambacher, A. Link, M. Stutzmann, Y. Smorchkova, UK. Mishra, and JS. Speck, "Photoreflectance studiesof N-and Ga-face AlGaN/GaN heterostructures confininga polarisation induced 2DEG", physica status solidi (b), vol. 240, no. 2: Wiley Online Library, pp. 380–383, 2003.
Green, DS., E. Haus, F. Wu, L. Chen, UK. Mishra, and JS. Speck, "Polarity control during molecular beam epitaxy growth of Mg-doped GaN", Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, vol. 21, no. 4: AVS, pp. 1804–1811, 2003.
Wu, F., M. D. Craven, S-H. Lim, and J. S. Speck, "Polarity determination of a-plane GaN on r-plane sapphire and its effects on lateral overgrowth and heteroepitaxy", Journal of Applied Physics, vol. 94, pp. 942-947, 2003.
Heikman, S., S. Keller, Y. Wu, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Polarization effects in AlGaN/GaN and GaN/AlGaN/GaN heterostructures", Journal of applied physics, vol. 93, no. 12: AIP, pp. 10114–10118, 2003.
Sun, Y. Jun, O. Brandt, S. Cronenberg, S. Dhar, H. T. Grahn, K. H. Ploog, P. Waltereit, and J. S. Speck, "RAPID COMMUNICATIONS-Semiconductors II: Surfaces, interfaces, microstructures, and related topics-Nonpolar InxGa1-xN/GaN (1100) multiple quantum wells grown on g-LiAlO2 (100) by plasma-assisted", Physical Review-Section B-Condensed Matter, vol. 67, no. 4: Woodbury, NY: published by the American Physical Society through the American Institute of Physics, c1998-, pp. 41306R, 2003.
Miller, EJ., DM. Schaadt, ET. Yu, P. Waltereit, C. Poblenz, and JS. Speck, "Reverse-bias leakage current reduction in GaN Schottky diodes by electrochemical surface treatment", Applied physics letters, vol. 82, no. 8: AIP, pp. 1293–1295, 2003.
Cantu, P., F. Wu, P. Waltereit, S. Keller, AE. Romanov, UK. Mishra, SP. DenBaars, and JS. Speck, "Si doping effect on strain reduction in compressively strained Al 0.49 Ga 0.51 N thin films", Applied physics letters, vol. 83, no. 4: AIP, pp. 674–676, 2003.
Cantu, P., F. Wu, P. Waltereit, S. Keller, AE. Romanov, UK. Mishra, SP. DenBaars, and JS. Speck, "Si doping effect on strain reduction in compressively strained Al 0.49 Ga 0.51 N thin films", Applied physics letters, vol. 83, no. 4: AIP, pp. 674–676, 2003.
Cantu, P., S. Keller, F. Wu, P. Waltereit, AE. Romanov, UK. Mishra, JS. Speck, and SP. DenBaars, "Si doping effects on the electrical and structural properties of high Al composition AlxGa1- xN films grown by MOCVD", physica status solidi (c), no. 7: Wiley Online Library, pp. 2010–2013, 2003.
Cantu, P., S. Keller, F. Wu, P. Waltereit, AE. Romanov, UK. Mishra, JS. Speck, and SP. DenBaars, "Si doping effects on the electrical and structural properties of high Al composition AlxGa1- xN films grown by MOCVD", physica status solidi (c), no. 7: Wiley Online Library, pp. 2010–2013, 2003.
Craven, MD., A. Chakraborty, B. Imer, F. Wu, S. Keller, UK. Mishra, JS. Speck, and SP. DenBaars, "Structural and electrical characterization of a-plane GaN grown on a-plane SiC", physica status solidi (c), no. 7: Wiley Online Library, pp. 2132–2135, 2003.
Haskell, BA., F. Wu, S. Matsuda, MD. Craven, PT. Fini, SP. DenBaars, JS. Speck, and S. Nakamura, "Structural and morphological characteristics of planar (1120) a-plane gallium nitride grown by hydride vapor phase epitaxy", Applied Physics Letters, vol. 83, no. 8: AIP, pp. 1554–1556, 2003.
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.

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