Publications

Found 89 results
Author Title Type [ Year(Desc)]
Filters: Author is Keller, Stacia  [Clear All Filters]
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.
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.
2009
Fujiwara, T., S. Rajan, S. Keller, M. Higashiwaki, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Enhancement-mode m-plane AlGaN/GaN heterojunction field-effect transistors", Applied Physics Express, vol. 2, no. 1: IOP Publishing, pp. 011001, 2009.
Dasgupta, S., Y. Pei, B. L. Swenson, D. F. Brown, S. Keller, J. S. Speck, U. K. Mishra, and others, "$ f_ ${$T$}$ $ and $ f_ ${$$\backslash$rm MAX$}$ $ of 47 and 81 GHz, Respectively, on N-Polar GaN/AlN MIS-HEMT", IEEE Electron Device Letters, vol. 30, no. 6: IEEE, pp. 599–601, 2009.
Chakraborty, A., B. A. Haskell, S. Keller, J. S. Speck, S. P. DenBaars, S. Nakamura, and U. K. Mishra, Fabrication of nonpolar indium gallium nitride thin films, heterostructures and devices by metalorganic chemical vapor deposition, 2009.
Matioli, E., M. Iza, Y-S. Choi, F. Wu, S. Keller, H. Masui, E. Hu, J. Speck, and C. Weisbuch, "GaN-based embedded 2D photonic crystal LEDs: Numerical optimization and device characterization", physica status solidi (c), vol. 6, no. S2: WILEY-VCH Verlag, 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.
2010
Brown, D. F., S. Keller, T. E. Mates, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Growth and characterization of In-polar and N-polar InAlN by metal organic chemical vapor deposition", Journal of Applied Physics, vol. 107, no. 3: AIP, pp. 033509, 2010.
Fujiwara, T., S. Keller, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Low ohmic contact resistance m-plane AlGaN/GaN heterojunction field-effect transistors with enhancement-mode operations", Applied physics express, vol. 3, no. 10: IOP Publishing, pp. 101002, 2010.
Dasgupta, S., Y. Pei, B. L. Swenson, S. Keller, J. S. Speck, U. K. Mishra, and others, "N-polar GaN/AlN MIS-HEMT for Ka-band power applications", IEEE Electron Device Letters, vol. 31, no. 12: IEEE, pp. 1437–1439, 2010.
Mishra, U. K., M. Hoi Wong, S. Dasgupta, D. F. Brown, B. L. Swenson, S. Keller, J. S. Speck, and others, "N-polar GaN-based MIS-HEMTs for mixed signal applications", Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International: IEEE, pp. 1130–1133, 2010.
Dasgupta, S., D. F. Brown, S. Keller, J. S. Speck, U. K. Mishra, and others, "T-gate technology for N-polar GaN-based self-aligned MIS-HEMTs with state-of-the-art f MAX of 127 GHz: Pathway towards scaling to 30nm GaN HEMTs", Device Research Conference (DRC), 2010: IEEE, pp. 155–156, 2010.
Dasgupta, S., Nidhi, D. F. Brown, F. Wu, S. Keller, J. S. Speck, and U. K. Mishra, "Ultralow nonalloyed ohmic contact resistance to self aligned N-polar GaN high electron mobility transistors by In (Ga) N regrowth", Applied physics letters, vol. 96, no. 14: AIP, pp. 143504, 2010.
2011
Neufeld, C. J., S. C. Cruz, R. M. Farrell, M. Iza, J. R. Lang, S. Keller, S. Nakamura, S. P. DenBaars, J. S. Speck, and U. K. Mishra, "Effect of doping and polarization on carrier collection in InGaN quantum well solar cells", Applied Physics Letters, vol. 98, no. 24: AIP, pp. 243507, 2011.

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