Publications

Found 89 results
Author Title Type [ Year(Asc)]
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2009
Matioli, E., S. Keller, F. Wu, Y-S. Choi, E. Hu, J. Speck, and C. Weisbuch, "Growth of embedded photonic crystals for GaN-based optoelectronic devices", Journal of Applied Physics, vol. 106, no. 2: AIP, pp. 024309, 2009.
Wong, M. Hoi, Y. Pei, D. F. Brown, S. Keller, J. S. Speck, and U. K. Mishra, "High performance MBE-grown N-face microwave GaN HEMTs with> 70% PAE", Device Research Conference, 2009. DRC 2009: IEEE, pp. 157–158, 2009.
Wong, M. Hoi, Y. Pei, D. F. Brown, S. Keller, J. S. Speck, and U. K. Mishra, "High-performance N-face GaN microwave MIS-HEMTs with> 70% power-added efficiency", IEEE Electron Device Letters, vol. 30, no. 8: IEEE, pp. 802–804, 2009.
Dasgupta, S., D. F. Brown, S. Keller, J. S. Speck, U. K. Mishra, and others, "N-polar GaN-based highly scaled self-aligned MIS-HEMTs with state-of-the-art f T. L G product of 16.8 GHz-μm", Electron Devices Meeting (IEDM), 2009 IEEE International: IEEE, pp. 1–3, 2009.
Fujiwara, T., S. Keller, M. Higashiwaki, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Si Delta-Doped m-Plane AlGaN/GaN Heterojunction Field-Effect Transistors", Applied physics express, vol. 2, no. 6: IOP Publishing, pp. 061003, 2009.
2008
Imer, B., B. Haskell, S. Rajan, S. Keller, U. K. Mishra, S. Nakamura, J. S. Speck, and S. P. DenBaars, "Electrical characterization of low defect density nonpolar (11\= 2 0) a-plane GaN grown with sidewall lateral epitaxial overgrowth (SLEO)", Journal of Materials Research, vol. 23, no. 2: Cambridge University Press, pp. 551–555, 2008.
Brown, D. F., S. Keller, F. Wu, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Growth and characterization of N-polar GaN films on SiC by metal organic chemical vapor deposition", Journal of Applied Physics, vol. 104, no. 2: AIP, pp. 024301, 2008.
Imer, B., M. Schmidt, B. Haskell, S. Rajan, B. Zhong, K. Kim, F. Wu, T. Mates, S. Keller, U. K. Mishra, et al., "Improved quality nonpolar a-plane GaN/AlGaN UV LEDs grown with sidewall lateral epitaxial overgrowth (SLEO)", physica status solidi (a), vol. 205, no. 7: WILEY-VCH Verlag, pp. 1705–1712, 2008.
Schaake, C. A., N. A. Fichtenbaum, C. J. Neufeld, S. Keller, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "M-plane InGaN/GaN light emitting diodes fabricated by MOCVD regrowth on c-plane patterned templates", physica status solidi (c), vol. 5, no. 9: Wiley Online Library, pp. 2963–2965, 2008.
Wong, M. Hoi, Y. Pei, R. Chu, S. Rajan, B. L. Swenson, D. F. Brown, S. Keller, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "N-face metal–insulator–semiconductor high-electron-mobility transistors with AlN back-barrier", IEEE Electron Device Letters, vol. 29, no. 10: IEEE, pp. 1101–1104, 2008.
Wong, M. Hoi, Y. Pei, R. Chu, S. Rajan, B. L. Swenson, D. F. Brown, S. Keller, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Power performance of MBE-grown N-face high electron mobility transistors with AIN back barrier", Device Research Conference, 2008: IEEE, pp. 201–202, 2008.
Nidhi, S. Rajan, S. Keller, F. Wu, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Study of interface barrier of SiN x/GaN interface for nitrogen-polar GaN based high electron mobility transistors", Journal of Applied Physics, vol. 103, no. 12: AIP, pp. 124508, 2008.
2007
Chakraborty, A., C. G. Moe, Y. Wu, T. Mates, S. Keller, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Electrical and structural characterization of Mg-doped p-type Al 0.69 Ga 0.31 N films on SiC substrate", Journal of Applied Physics, vol. 101, no. 5: AIP, pp. 053717, 2007.
Chakraborty, A., B. A. Haskell, S. Keller, J. Stephen Speck, S. P. DenBaars, S. Nakamura, and U. Kumar Mishra, Fabrication of nonpolar indium gallium nitride thin films, heterostructures and devices by metalorganic chemical vapor deposition, 2007.
Chu, R., C. Soo Suh, M. Hoi Wong, N. Fichtenbaum, D. Brown, L. McCarthy, S. Keller, F. Wu, J. S. Speck, and U. K. Mishra, "Impact of $$\backslash$hbox ${$CF$}$ _ ${$4$}$ $ Plasma Treatment on GaN", IEEE Electron Device Letters, vol. 28, no. 9: IEEE, pp. 781–783, 2007.
Ikeda, H., T. Okamura, K. Matsukawa, T. Sota, M. Sugawara, T. Hoshi, P. Cantu, R. Sharma, J. F. Kaeding, S. Keller, et al., "Impact of strain on free-exciton resonance energies in wurtzite AlN", Journal of Applied Physics, vol. 102, no. 12: AIP, pp. 123707, 2007.
Wong, M. Hoi, Y. Pei, T. Palacios, L. Shen, A. Chakraborty, L. S. McCarthy, S. Keller, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Low nonalloyed Ohmic contact resistance to nitride high electron mobility transistors using N-face growth", Applied Physics Letters, vol. 91, no. 23: AIP, pp. 232103, 2007.
Fichtenbaum, N. A., C. J. Neufeld, C. Schaake, Y. Wu, M. Hoi Wong, M. Grundmann, S. Keller, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Metalorganic chemical vapor deposition regrowth of InGaN and GaN on N-polar pillar and stripe nanostructures", Japanese journal of applied physics, vol. 46, no. 3L: IOP Publishing, pp. L230, 2007.
Wong, M. Hoi, S. Rajan, RM. Chu, T. Palacios, C-S. Suh, L. S. McCarthy, S. Keller, J. S. Speck, and U. K. Mishra, "N-face high electron mobility transistors with a GaN-spacer", physica status solidi (a), vol. 204, no. 6: Wiley Online Library, pp. 2049–2053, 2007.
Rajan, S., E. Hsieh, M. Hoi Wong, S. Keller, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "N-polar GaN Electronics", Physics of Semiconductor Devices, 2007. IWPSD 2007. International Workshop on: IEEE, pp. 368–368, 2007.
Chakraborty, A., B. A. Haskell, F. Wu, S. Keller, S. P. DenBaars, S. Nakamura, J. S. Speck, and U. K. Mishra, "Structural and Optical Properties of Nonpolar InGaN/GaN Multiple Quantum Wells Grown on Planar and Lateral Epitaxially Overgrown m-Plane GaN Films", Japanese Journal of Applied Physics, vol. 46, no. 2R: IOP Publishing, pp. 542, 2007.
Chu, R., L. Shen, N. Fichtenbaum, S. Keller, A. Corrion, C. Poblenz, J. Speck, and U. Mishra, "Surface treatment for leakage reduction in AlGaN/GaN HEMTs", Device Research Conference, 2007 65th Annual: IEEE, pp. 127–128, 2007.
2006
Moe, C. G., Y. Wu, J. Piprek, S. Keller, J. S. Speck, S. P. DenBaars, and D. Emerson, "AlGaN/AlN distributed bragg reflectors for deep ultraviolet wavelengths", physica status solidi (a), vol. 203, no. 8: Wiley Online Library, pp. 1915–1919, 2006.
Moe, C. G., Y. Wu, S. Keller, J. S. Speck, S. P. DenBaars, and D. Emerson, "Crystal quality and growth evolution of aluminum nitride on silicon carbide", physica status solidi (a), vol. 203, no. 7: Wiley Online Library, pp. 1708–1711, 2006.
Keller, S., N. Fichtenbaum, F. Wu, G. Lee, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Effect of the Nucleation Conditions on the Polarity of AlN and GaN Films Grown on C-face 6H–SiC", Japanese journal of applied physics, vol. 45, no. 3L: IOP Publishing, pp. L322, 2006.

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