Publications

Found 301 results
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2009
Yang, C-K., P. Roblin, A. Malonis, A. Arehart, S. Ringel, C. Poblenz, Y. Pei, J. Speck, and U. Mishra, "Characterization of traps in AlGaN/GaN HEMTs with a combined large signal network analyzer/deep level optical spectrometer system", Microwave Symposium Digest, 2009. MTT'09. IEEE MTT-S International: IEEE, pp. 1209–1212, 2009.
Yang, C-K., P. Roblin, A. Malonis, A. Arehart, S. Ringel, C. Poblenz, Y. Pei, J. Speck, and U. Mishra, "Characterization of traps in AlGaN/GaN HEMTs with a combined large signal network analyzer/deep level optical spectrometer system", Microwave Symposium Digest, 2009. MTT'09. IEEE MTT-S International: IEEE, pp. 1209–1212, 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.
Navarro, A., C. Rivera, J. Pereiro, E. Munoz, B. Imer, SP. DenBaars, and JS. Speck, "High responsivity A-plane GaN-based metal-semiconductor-metal photodetectors for polarization-sensitive applications", Applied Physics Letters, vol. 94, no. 21: AIP, pp. 213512, 2009.
Tamboli, A. C., M. C. Schmidt, S. Rajan, J. S. Speck, U. K. Mishra, S. P. DenBaars, and E. L. Hu, "Smooth top-down photoelectrochemical etching of m-plane GaN", Journal of The Electrochemical Society, vol. 156, no. 1: The Electrochemical Society, pp. H47–H51, 2009.
Reurings, F., F. Tuomisto, C. S. Gallinat, G. Koblmüller, and J. S. Speck, "Vacancy defects probed with positron annihilation spectroscopy in In-polar InN grown by plasma-assisted molecular beam epitaxy: Effects of growth conditions", physica status solidi (c), vol. 6, no. S2: WILEY-VCH Verlag, 2009.
2008
Raman, A., S. Dasgupta, S. Rajan, J. S. Speck, and U. K. Mishra, "AlGaN channel high electron mobility transistors: Device performance and power-switching figure of merit", Japanese Journal of Applied Physics, vol. 47, no. 5R: IOP Publishing, pp. 3359, 2008.
Raman, A., S. Dasgupta, S. Rajan, J. S. Speck, and U. K. Mishra, "AlGaN channel high electron mobility transistors: Device performance and power-switching figure of merit", Japanese Journal of Applied Physics, vol. 47, no. 5R: IOP Publishing, pp. 3359, 2008.
Armstrong, A., J. Caudill, A. Corrion, C. Poblenz, UK. Mishra, JS. Speck, and SA. Ringel, "Characterization of majority and minority carrier deep levels in p-type GaN: Mg grown by molecular beam epitaxy using deep level optical spectroscopy", Journal of Applied Physics, vol. 103, no. 6: AIP, pp. 063722, 2008.
Arehart, AR., A. Corrion, C. Poblenz, JS. Speck, UK. Mishra, SP. DenBaars, and SA. Ringel, "Comparison of deep level incorporation in ammonia and rf-plasma assisted molecular beam epitaxy n-GaN films", physica status solidi (c), vol. 5, no. 6: Wiley Online Library, pp. 1750–1752, 2008.
Arehart, AR., A. Corrion, C. Poblenz, JS. Speck, UK. Mishra, and SA. Ringel, "Deep level optical and thermal spectroscopy of traps in n-GaN grown by ammonia molecular beam epitaxy", Applied Physics Letters, vol. 93, no. 11: AIP, pp. 112101, 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.
Chu, R., C. Poblenz, M. Hoi Wong, S. Dasgupta, S. Rajan, Y. Pei, F. Recht, L. Shen, J. S. Speck, and U. K. Mishra, "Improved Performance of Plasma-Assisted Molecular Beam Epitaxy Grown AlGaN/GaN High Electron Mobility Transistors with Gate-Recess and CF4-Treatment", Applied physics express, vol. 1, no. 6: IOP Publishing, pp. 061101, 2008.
Chu, R., C. Poblenz, M. Hoi Wong, S. Dasgupta, S. Rajan, Y. Pei, F. Recht, L. Shen, J. S. Speck, and U. K. Mishra, "Improved Performance of Plasma-Assisted Molecular Beam Epitaxy Grown AlGaN/GaN High Electron Mobility Transistors with Gate-Recess and CF4-Treatment", Applied physics express, vol. 1, no. 6: IOP Publishing, pp. 061101, 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.
Wraback, M., G. D. Chern, E. D. Readinger, P. H. Shen, G. Koblmüller, C. Gallinat, and J. S. Speck, "Indium Nitride: A New Material for High Efficiency, Compact, 1550nm Laser-Based Terahertz Sources in Chemical and Biological Detection", International Journal of High Speed Electronics and Systems, vol. 18, no. 01: World Scientific, pp. 3–9, 2008.
Keller, S., CS. Suh, NA. Fichtenbaum, M. Furukawa, R. Chu, Z. Chen, K. Vijayraghavan, S. Rajan, SP. DenBaars, JS. Speck, et al., "Influence of the substrate misorientation on the properties of N-polar InGaN/GaN and AlGaN/GaN heterostructures", Journal of Applied Physics, vol. 104, no. 9: AIP, pp. 093510, 2008.
Chern-Metcalfe, GD., ED. Readinger, H. Shen, M. Wraback, G. Koblmüller, CS. Gallinat, and JS. Speck, "Intensity-dependent photoluminescence studies of the electric field in N-face and In-face InN/InGaN multiple quantum wells", physica status solidi (c), vol. 5, no. 6: Wiley Online Library, pp. 1846–1848, 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.
Keller, S., CS. Suh, Z. Chen, R. Chu, S. Rajan, NA. Fichtenbaum, M. Furukawa, SP. DenBaars, JS. Speck, and UK. Mishra, "Properties of N-polar AlGaN/GaN heterostructures and field effect transistors grown by metalorganic chemical vapor deposition", Journal of Applied Physics, vol. 103, no. 3: AIP, pp. 033708, 2008.
Chu, R., C. Poblenz, M. Hoi Wong, S. Dasgupta, S. Rajan, Y. Pei, F. Recht, L. Shen, J. S. Speck, and U. K. Mishra, "Semiconductor, superconductor, spintronic, dielectric, and organic materials-Improved Performance of Plasma-Assisted Molecular Beam Epitaxy Grown AlGaN/GaN High Electron Mobility Transistors with Gate-Recess and CF4-Treatment", Applied Physics Express, vol. 1, no. 6, pp. 61101, 2008.
Chu, R., C. Poblenz, M. Hoi Wong, S. Dasgupta, S. Rajan, Y. Pei, F. Recht, L. Shen, J. S. Speck, and U. K. Mishra, "Semiconductor, superconductor, spintronic, dielectric, and organic materials-Improved Performance of Plasma-Assisted Molecular Beam Epitaxy Grown AlGaN/GaN High Electron Mobility Transistors with Gate-Recess and CF4-Treatment", Applied Physics Express, vol. 1, no. 6, pp. 61101, 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.
Metcalfe, G. D., E. D. Readinger, H. Shen, M. Wraback, A. Hirai, E. Young, and J. S. Speck, "Terahertz emission from nonpolar gallium nitride", Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on: IEEE, pp. 1–2, 2008.

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