Publications

Found 696 results
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2013
Marcinkevičius, S., KM. Kelchner, S. Nakamura, SP. DenBaars, and JS. Speck, "Optical properties of extended and localized states in m-plane InGaN quantum wells", Applied Physics Letters, vol. 102, no. 10: AIP, pp. 101102, 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.
Marcinkevičius, S., KM. Kelchner, LY. Kuritzky, S. Nakamura, SP. DenBaars, and JS. Speck, "Photoexcited carrier recombination in wide m-plane InGaN/GaN quantum wells", Applied Physics Letters, vol. 103, no. 11: AIP, pp. 111107, 2013.
Marcinkevičius, S., KM. Kelchner, LY. Kuritzky, S. Nakamura, SP. DenBaars, and JS. Speck, "Photoexcited carrier recombination in wide m-plane InGaN/GaN quantum wells", Applied Physics Letters, vol. 103, no. 11: AIP, pp. 111107, 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.
Chen, J., Y. S. Puzyrev, C. Xuan Zhang, E. Xia Zhang, M. W. McCurdy, D. M. Fleetwood, R. D. Schrimpf, S. T. Pantelides, S. W. Kaun, E. C. H. Kyle, et al., "Proton-induced dehydrogenation of defects in AlGaN/GaN HEMTs", IEEE Transactions on Nuclear Science, vol. 60, no. 6: IEEE, pp. 4080–4086, 2013.
Chen, J., Y. S. Puzyrev, C. Xuan Zhang, E. Xia Zhang, M. W. McCurdy, D. M. Fleetwood, R. D. Schrimpf, S. T. Pantelides, S. W. Kaun, E. C. H. Kyle, et al., "Proton-induced dehydrogenation of defects in AlGaN/GaN HEMTs", IEEE Transactions on Nuclear Science, vol. 60, no. 6: IEEE, pp. 4080–4086, 2013.
Pourhashemi, A., RM. Farrell, MT. Hardy, PS. Hsu, KM. Kelchner, JS. Speck, SP. DenBaars, and S. Nakamura, "Pulsed high-power AlGaN-cladding-free blue laser diodes on semipolar (20 2 1) GaN substrates", Applied Physics Letters, vol. 103, no. 15: AIP, pp. 151112, 2013.
Kaun, SW., MH. Wong, J. Lu, UK. Mishra, and JS. Speck, "Reduction of carbon proximity effects by including AlGaN back barriers in HEMTs on free-standing GaN", Electronics Letters, vol. 49, no. 14: IET Digital Library, pp. 893–895, 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.
Cardwell, DW., A. Sasikumar, AR. Arehart, SW. Kaun, J. Lu, S. Keller, JS. Speck, UK. Mishra, SA. Ringel, and JP. Pelz, "Spatially-resolved spectroscopic measurements of Ec- 0.57 eV traps in AlGaN/GaN high electron mobility transistors", Applied Physics Letters, vol. 102, no. 19: AIP, pp. 193509, 2013.
Cardwell, DW., A. Sasikumar, AR. Arehart, SW. Kaun, J. Lu, S. Keller, JS. Speck, UK. Mishra, SA. Ringel, and JP. Pelz, "Spatially-resolved spectroscopic measurements of Ec- 0.57 eV traps in AlGaN/GaN high electron mobility transistors", Applied Physics Letters, vol. 102, no. 19: AIP, pp. 193509, 2013.
Drabold, D. A., A. L. Efros, E. Fortunato, B. Gil, S. T. B. Gönnenwein, N. Grandjean, M. J Gregg, A. Hoffmann, A. A. Kaminskii, C-S. Lee, et al., Stefan Hildebrandt Sabine Bahrs, 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.
Pimputkar, S., S. Kawabata, JS. Speck, and S. Nakamura, "Surface morphology study of basic ammonothermal GaN grown on non-polar GaN seed crystals of varying surface orientations from m-plane to a-plane", Journal of Crystal Growth, vol. 368: Elsevier, pp. 67–71, 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.
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
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.
Sasikumar, A., A. Arehart, S. Kolluri, MH. Wong, S. Keller, SP. DenBaars, JS. Speck, UK. Mishra, and SA. Ringel, "Access-region defect spectroscopy of DC-stressed N-polar GaN MIS-HEMTs", IEEE Electron Device Letters, vol. 33, no. 5: IEEE, pp. 658–660, 2012.
Sasikumar, A., A. Arehart, S. Kolluri, MH. Wong, S. Keller, SP. DenBaars, JS. Speck, UK. Mishra, and SA. Ringel, "Access-region defect spectroscopy of DC-stressed N-polar GaN MIS-HEMTs", IEEE Electron Device Letters, vol. 33, no. 5: IEEE, pp. 658–660, 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.
Henry, T. A., A. Armstrong, K. M. Kelchner, S. Nakamura, SP. DenBaars, and JS. Speck, "Assessment of deep level defects in m-plane GaN grown by metalorganic chemical vapor deposition", Applied Physics Letters, vol. 100, no. 8: AIP, pp. 082103, 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.
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, pp. 112102, 2012.

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