Publications

Found 217 results
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2010
Reurings, F., F. Tuomisto, C. S. Gallinat, G. Koblmüller, and J. S. Speck, "In vacancies in InN grown by plasma-assisted molecular beam epitaxy", Applied Physics Letters, vol. 97, no. 25: AIP, pp. 251907, 2010.
Koblmüller, G., F. Reurings, F. Tuomisto, and JS. Speck, "Influence of Ga/N ratio on morphology, vacancies, and electrical transport in GaN grown by molecular beam epitaxy at high temperature", Applied Physics Letters, vol. 97, no. 19: AIP, pp. 191915, 2010.
Hsu, P. Shan, K. M. Kelchner, A. Tyagi, R. M. Farrell, D. A. Haeger, K. Fujito, H. Ohta, S. P. DenBaars, J. S. Speck, and S. Nakamura, "InGaN/GaN blue laser diode grown on semipolar (3031) free-standing GaN substrates", Applied physics express, vol. 3, no. 5: IOP Publishing, pp. 052702, 2010.
Rauch, C., F. Reurings, F. Tuomisto, TD. Veal, C. F. McConville, H. Lu, WJ. Schaff, CS. Gallinat, G. Koblmüller, JS. Speck, et al., "In-vacancies in Si-doped InN", physica status solidi (a), vol. 207, no. 5: WILEY-VCH Verlag, pp. 1083–1086, 2010.
Young, E. C., F. Wu, A. E. Romanov, A. Tyagi, C. S. Gallinat, S. P. DenBaars, S. Nakamura, and J. S. Speck, "Lattice tilt and misfit dislocations in (1122) semipolar GaN heteroepitaxy", Applied physics express, vol. 3, no. 1: IOP Publishing, pp. 011004, 2010.
Yang, CK., P. Roblin, F. De Groote, SA. Ringel, S. Rajan, JP. Teyssier, C. Poblenz, Y. Pei, J. Speck, and UK. Mishra, "Linear and Nonlinear Device Modeling-Pulsed-IV Pulsed-RF Cold-FET Parasitic Extraction of Biased AlGaN/GaN HEMTs Using Large Signal Network Analyzer", IEEE Transactions on Microwave Theory and Techniques, vol. 58, no. 5, pp. 1077, 2010.
Huang, C-Y., Y-. Da Lin, A. Tyagi, A. Chakraborty, H. Ohta, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Optical waveguide simulations for the optimization of InGaN-based green laser diodes", Journal of Applied Physics, vol. 107, no. 2: AIP, pp. 023101, 2010.
Shen, H., GA. Garrett, M. Wraback, H. Zhong, A. Tyagi, SP. DenBaars, S. Nakamura, and JS. Speck, "Polarization field crossover in semi-polar InGaN/GaN single quantum wells", physica status solidi (c), vol. 7, no. 10: Wiley Online Library, pp. 2378–2381, 2010.
Huang, C-Y., A. Tyagi, Y-. Da Lin, M. T. Hardy, P. Shan Hsu, K. Fujito, J-S. Ha, H. Ohta, J. S. Speck, S. P. DenBaars, et al., "Propagation of spontaneous emission in birefringent m-axis oriented semipolar (1122)(Al, In, Ga) N waveguide structures", Japanese Journal of Applied Physics, vol. 49, no. 1R: IOP Publishing, pp. 010207, 2010.
Yang, C. Kai, P. Roblin, F. De Groote, S. A. Ringel, S. Rajan, J. Pierre Teyssier, C. Poblenz, Y. Pei, J. Speck, and U. K. Mishra, "Pulsed-IV pulsed-RF cold-FET parasitic extraction of biased AlGaN/GaN HEMTs using large signal network analyzer", IEEE transactions on microwave theory and techniques, vol. 58, no. 5: IEEE, pp. 1077–1088, 2010.
Singisetti, U., M. Hoi Wong, S. Dasgupta, B. L. Swenson, B. J. Thibeault, J. S. Speck, U. K. Mishra, and others, "Scalable E-mode N-polar GaN MISFET devices and process with self-aligned source/drain regrowth", Device Research Conference (DRC), 2010: IEEE, pp. 191–192, 2010.
Nagata, T., O. Bierwagen, M. E. White, M-Y. Tsai, and J. S. Speck, "Study of the Au Schottky contact formation on oxygen plasma treated n-type SnO 2 (101) thin films", Journal of Applied Physics, vol. 107, no. 3: AIP, pp. 033707, 2010.
White, M. E., O. Bierwagen, M-Y. Tsai, and J. S. Speck, "Synthesis and characterization of highly resistive epitaxial indium-doped SnO2", Applied physics express, vol. 3, no. 5: IOP Publishing, pp. 051101, 2010.
Tsai, M-Y., O. Bierwagen, M. E. White, and J. S. Speck, "β-Ga 2 O 3 growth by plasma-assisted molecular beam epitaxy", Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, vol. 28, no. 2: AVS, pp. 354–359, 2010.
2009
Tyagi, A., R. M. Farrell, K. M. Kelchner, C-Y. Huang, P. Shan Hsu, D. A. Haeger, M. T. Hardy, C. Holder, K. Fujito, D. A. Cohen, et al., "AlGaN-cladding free green semipolar GaN based laser diode with a lasing wavelength of 506.4 nm", Applied Physics Express, vol. 3, no. 1: IOP Publishing, pp. 011002, 2009.
Garrett, G. A., H. Shen, M. Wraback, A. Tyagi, M. C. Schmidt, J. S. Speck, S. P. DenBaars, and S. Nakamaura, "Comparison of time-resolved photoluminescence from InGaN single quantum wells grown on nonpolar and semipolar bulk GaN substrates", physica status solidi (c), vol. 6, no. S2: WILEY-VCH Verlag, 2009.
Shen, H., M. Wraback, H. Zhong, A. Tyagi, SP. DenBaars, S. Nakamura, and JS. Speck, "Determination of polarization field in a semipolar (11 2\= 2) In Ga/ Ga N single quantum well using Franz–Keldysh oscillations in electroreflectance", Applied Physics Letters, vol. 94, no. 24: AIP, pp. 241906, 2009.
White, ME., O. Bierwagen, MY. Tsai, and JS. Speck, "Electron transport properties of antimony doped Sn O 2 single crystalline thin films grown by plasma-assisted molecular beam epitaxy", Journal of Applied Physics, vol. 106, no. 9: AIP, pp. 093704, 2009.
Zhong, H., A. Tyagi, N. Pfaff, M. Saito, K. Fujito, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Enhancing the light extraction efficiency of blue semipolar (1011) nitride-based light emitting diodes through surface patterning", Japanese Journal of Applied Physics, vol. 48, no. 3R: IOP Publishing, pp. 030201, 2009.
Tsai, MY., ME. White, and JS. Speck, "Investigation of (110) Sn O 2 growth mechanisms on Ti O 2 substrates by plasma-assisted molecular beam epitaxy", Journal of Applied Physics, vol. 106, no. 2: AIP, pp. 024911, 2009.
Bierwagen, O., M. E. White, M-Y. Tsai, T. Nagata, and J. S. Speck, "Non-alloyed Schottky and ohmic contacts to as-grown and oxygen-plasma treated n-type SnO2 (110) and (101) thin films", Applied Physics Express, vol. 2, no. 10: IOP Publishing, pp. 106502, 2009.
Tyagi, A., F. Wu, E. C. Young, A. Chakraborty, H. Ohta, R. Bhat, K. Fujito, S. P. DenBaars, S. Nakamura, and J. S. Speck, "Partial strain relaxation via misfit dislocation generation at heterointerfaces in (Al, In) GaN epitaxial layers grown on semipolar (11 2\= 2) GaN free standing substrates", Applied Physics Letters, vol. 95, no. 25: AIP, pp. 251905, 2009.
Shen, P. H., G. Garrett, M. Wraback, H. Zhong, A. Tyagi, J. Speck, and S. Nakamura, "Piezoelectric Field in Semi-Polar InGaN/GaN Quantum Wells", Meeting Abstracts, no. 21: The Electrochemical Society, pp. 885–885, 2009.
Bierwagen, O., M. E. White, M-Y. Tsai, and J. S. Speck, "Plasma-assisted molecular beam epitaxy of high quality In 2 O 3 (001) thin films on Y-Stabilized ZrO 2 (001) using in as an auto surfactant", Applied Physics Letters, vol. 95, no. 26: AIP, pp. 262105, 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.

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