Publications

Found 673 results
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2013
Zhao, Y., Q. Yan, D. Feezell, K. Fujito, C. G. Van de Walle, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Optical polarization characteristics of semipolar (303\= 1) and (303\= 1\=) InGaN/GaN light-emitting diodes", Optics express, vol. 21, no. 101: Optical Society of America, pp. A53–A59, 2013.
Farrell, R. M., M. C. Schmidt, K. Choong Kim, H. Masui, D. F. Feezell, J. S. Speck, S. P. DenBaars, and S. Nakamura, Optimization of laser bar orientation for nonpolar and semipolar (Ga, Al, In, B) N diode lasers, 2013.
Tamboli, A., E. L. Hu, and J. S. Speck, Photoelectrochemical etching for chip shaping of light emitting diodes, 2013.
Choi, S., F. Wu, O. Bierwagen, and J. S. Speck, "Polarity control and transport properties of Mg-doped (0001) InN by plasma-assisted molecular beam epitaxy", Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, vol. 31, no. 3: AVS, pp. 031504, 2013.
Kelchner, K. M., and J. S. Speck, "Progress in Nonpolar and Semipolar GaN Materials and Devices", ECS Transactions, vol. 50, no. 6: The Electrochemical Society, pp. 217–221, 2013.
Bryant, B. N., A. Hirai, E. C. Young, S. Nakamura, and J. S. Speck, "Quasi-equilibrium crystal shapes and kinetic Wulff plots for gallium nitride grown by hydride vapor phase epitaxy", Journal of Crystal Growth, vol. 369: Elsevier, pp. 14–20, 2013.
Preissler, N., O. Bierwagen, A. T. Ramu, and J. S. Speck, "The Seebeck coefficient of In 2 O 3-Inferences on causes of unintentional conductivity and electron effective mass", Verhandlungen der Deutschen Physikalischen Gesellschaft, 2013.
Speck, J. S., E. L. Hu, C. C. A. Weisbuch, Y. Seok Choi, G. Koblmüller, M. Iza, and C. Hurni, SELECTIVE DRY ETCHING OF N-FACE (Al, In, Ga) N HETEROSTRUCTURES, apr # " 25", 2013.
Feezell, D. F., J. S. Speck, S. P. DenBaars, and S. Nakamura, "Semipolar $(${$$\backslash$hbox ${$20$}$$}$$\backslash$bar ${$${$$\backslash$hbox ${$2$}$$}$$}$$\backslash$bar ${$${$$\backslash$hbox ${$1$}$$}$$}$) $ InGaN/GaN Light-Emitting Diodes for High-Efficiency Solid-State Lighting", Journal of Display Technology, vol. 9, no. 4: IEEE, pp. 190–198, 2013.
Zhao, Y., F. Wu, C-Y. Huang, Y. Kawaguchi, S. Tanaka, K. Fujito, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Suppressing void defects in long wavelength semipolar (20 2 1) InGaN quantum wells by growth rate optimization", Applied Physics Letters, vol. 102, no. 9: AIP, pp. 091905, 2013.
Baker, T. J., B. A. Haskell, P. T. Fini, S. P. DenBaars, J. S. Speck, and S. Nakamua, Technique for the growth of planar semi-polar gallium nitride, sep # " 3", 2013.
Metcalfe, G. D., A. Hirai, E. C. Young, J. S. Speck, H. Shen, and M. Wraback, "Terahertz studies of carrier localization in spontaneously forming polar lateral heterostructures", physica status solidi (RRL)-Rapid Research Letters, vol. 7, no. 11: Wiley Online Library, pp. 993–996, 2013.
Pfaff, N. A., K. M. Kelchner, D. F. Feezell, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Thermal Performance of Violet and Blue Single-Quantum-Well Nonpolar m-Plane InGaN Light-Emitting Diodes", Applied Physics Express, vol. 6, no. 9: IOP Publishing, pp. 092104, 2013.
Hardy, M. T., F. Wu, P. Shan Hsu, D. A. Haeger, S. Nakamura, J. S. Speck, and S. P. DenBaars, "True green semipolar InGaN-based laser diodes beyond critical thickness limits using limited area epitaxy", Journal of Applied Physics, vol. 114, no. 18: AIP, pp. 183101, 2013.
Pimputkar, S., P. M. Von Dollen, J. S. Speck, and S. Nakamura, Use of alkaline-earth metals to reduce impurity incorporation into a group-iii nitride crystal grown using the ammonothermal method, apr # " 25", 2013.
Pimputkar, S., D. S. Kamber, J. S. Speck, and S. Nakamura, Using boron-containing compounds, gasses and fluids during ammonothermal growth of group-III nitride crystals, 2013.
Pimputkar, S., D. S. Kamber, J. S. Speck, and S. Nakamura, Using boron-containing compounds, gasses and fluids during ammonothermal growth of group-iii nitride crystals, 2013.
2012
Haeger, D. A., E. C. Young, R. B. Chung, F. Wu, N. A. Pfaff, M. Tsai, K. Fujito, S. P. DenBaars, J. S. Speck, S. Nakamura, et al., "384 nm laser diode grown on a (20 2\= 1) semipolar relaxed AlGaN buffer layer", Applied Physics Letters, vol. 100, no. 16: AIP, pp. 161107, 2012.
Haeger, D., E. Young, R. Chung, F. Wu, S. Nakamura, S. DenBaars, J. S. Speck, A. Romanov, and D. A. Cohen, "384nm AlGaN Diode Lasers on Relaxed Semipolar Buffers", CLEO: Science and Innovations: Optical Society of America, pp. CTu2N–4, 2012.
Hsu, P. Shan, M. T. Hardy, F. Wu, I. Koslow, E. C. Young, A. E. Romanov, K. Fujito, D. F. Feezell, S. P. DenBaars, J. S. Speck, et al., "444.9 nm semipolar (11 2\= 2) laser diode grown on an intentionally stress relaxed InGaN waveguiding layer", Applied Physics Letters, vol. 100, no. 2: AIP, pp. 021104, 2012.
Feezell, D. F., M. C. Schmidt, K-C. Kim, R. M. Farrell, D. A. Cohen, J. S. Speck, S. P. DenBaars, and S. Nakamura, Al (x) Ga (1-x) N-cladding-free nonpolar III-nitride based laser diodes and light emitting diodes, 2012.
Raman, A., C. A. Hurni, J. S. Speck, and U. K. Mishra, "AlGaN/GaN heterojunction bipolar transistors by ammonia molecular beam epitaxy", physica status solidi (a), vol. 209, no. 1: Wiley Online Library, pp. 216–220, 2012.
Wu, Y-R., R. Shivaraman, K-C. Wang, and J. S. Speck, "Analyzing the physical properties of InGaN multiple quantum well light emitting diodes from nano scale structure", Applied Physics Letters, vol. 101, no. 8: AIP, pp. 083505, 2012.
Wong, M. Hoi, U. Singisetti, J. Lu, J. S. Speck, and U. K. Mishra, "Anomalous output conductance in N-polar GaN high electron mobility transistors", IEEE Transactions on Electron Devices, vol. 59, no. 11: IEEE, pp. 2988–2995, 2012.
Hu, Y-L., S. Krämer, P. T. Fini, and J. S. Speck, "Atomic structure of prismatic stacking faults in nonpolar a-plane GaN epitaxial layers", Applied Physics Letters, vol. 101, no. 11: AIP, pp. 112102, 2012.

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