Publications

Found 34 results
Author Title Type [ Year(Desc)]
Filters: Author is Speck, James S and First Letter Of Title is A  [Clear All Filters]
2004
Hashimoto, T., K. Fujito, F. Wu, B. A. Haskell, P. T. Fini, J. S. Speck, and S. Nakamura, "Ammonothermal growth of GaN utilizing negative temperature dependence of solubility in basic ammonia", MRS Online Proceedings Library Archive, vol. 831: Cambridge University Press, 2004.
2005
Hashimoto, T., K. Fujito, M. Saito, J. S. Speck, and S. Nakamura, "Ammonothermal growth of GaN on an over-1-inch seed crystal", Japanese journal of applied physics, vol. 44, no. 12L: IOP Publishing, pp. L1570, 2005.
2006
Moe, C. G., Y. Wu, J. Piprek, S. Keller, J. S. Speck, S. P. DenBaars, and D. Emerson, "AlGaN/AlN distributed bragg reflectors for deep ultraviolet wavelengths", physica status solidi (a), vol. 203, no. 8: Wiley Online Library, pp. 1915–1919, 2006.
2007
Feezell, D. F., M. C. Schmidt, R. M. Farrell, K-C. Kim, M. Saito, K. Fujito, D. A. Cohen, J. S. Speck, S. P. DenBaars, and S. Nakamura, "AlGaN-cladding-free nonpolar InGaN/GaN laser diodes", Japanese journal of applied physics, vol. 46, no. 4L: IOP Publishing, pp. L284, 2007.
Hashimoto, T., J. S. Speck, and S. Nakamura, Ammonothermal Growth of Bulk GaN for Extended Time, 2007.
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.
Hashimoto, T., F. Wu, J. S. Speck, and S. Nakamura, "Ammonothermal growth of bulk GaN", Journal of Crystal Growth, vol. 310, no. 17: Elsevier, pp. 3907–3910, 2008.
2010
Young, E. C., A. E. Romanov, C. S. Gallinat, A. Hirai, G. E. Beltz, and J. S. Speck, "Anisotropy of tensile stresses and cracking in nonbasal plane Al x Ga 1- x N/GaN heterostructures", Applied Physics Letters, vol. 96, no. 4: AIP, pp. 041913, 2010.
2011
Chung, R. Byung- Kyu, S. P. DenBaars, J. S. Speck, and S. Nakamura, "Abnormal Behavior of MOCVD Grown Al x In 1-x N Observed by Various Material Characterizations", 한국재료학회, vol. 17, 10/2011.
Pimputkar, S., D. S. Kamber, J. S. Speck, and S. Nakamura, Addition of hydrogen and/or nitrogen containing compounds to the nitrogen-containing solvent used during the ammonothermal growth of group-iii nitride crystals, sep # " 1", 2011.
Farrell, R. M., D. A. Haeger, P. Shan Hsu, M. T. Hardy, K. M. Kelchner, K. Fujito, D. F. Feezell, U. K. Mishra, S. P. DenBaars, J. S. Speck, et al., "AlGaN-cladding-free m-plane InGaN/GaN laser diodes with p-type AlGaN etch stop layers", Applied physics express, vol. 4, no. 9: IOP Publishing, pp. 092105, 2011.
Bryant, B. N., D. S. Kamber, F. Wu, S. Nakamura, and J. S. Speck, "Aluminum nitride grown on lens shaped patterned sapphire by hydride vapor phase epitaxy", physica status solidi (c), vol. 8, no. 5: Wiley Online Library, pp. 1463–1466, 2011.
Wong, M. Hoi, U. Singisetti, J. Lu, J. S. Speck, and U. K. Mishra, "Anomalous output conductance in N-polar GaN-based MIS-HEMTs", Device Research Conference (DRC), 2011 69th Annual: IEEE, pp. 211–212, 2011.
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.
2013
Poblenz, C., J. S. Speck, and D. S. Kamber, Ammonothermal method for growth of bulk gallium nitride, 2013.
Pimputkar, S., P. Von Dollen, S. Nakamura, and J. S. Speck, Apparatus used for the growth of group-iii nitride crystals utilizing carbon fiber containing materials and group-iii nitride grown therewith, 2013.
Mazumder, B., S. W. Kaun, J. Lu, S. Keller, U. K. Mishra, and J. S. Speck, "Atom probe analysis of AlN interlayers in AlGaN/AlN/GaN heterostructures", Applied Physics Letters, vol. 102, no. 11: AIP, pp. 111603, 2013.
Mazumder, B., S. W. Kaun, J. Lu, S. Keller, U. K. Mishra, and J. S. Speck, "Atom probe characterization of an AlN interlayer within HEMT structures grown by molecular beam epitaxy and metal-organic chemical vapor deposition", Bulletin of the American Physical Society, vol. 58: American Physical Society, 2013.
2014
Da Lin, Y-., H. Ohta, S. Nakamura, S. P. DenBaars, and J. S. Speck, Aluminum gallium nitride barriers and separate confinement heterostructure (SCH) layers for semipolar plane III-nitride semiconductor-based light emitting diodes and laser diodes, jun # " 24", 2014.
Ohta, H., F. Wu, A. Tyagi, A. Chakraborty, J. S. Speck, S. P. DenBaars, S. Nakamura, and E. C. Young, Anisotropic strain control in semipolar nitride quantum wells by partially or fully relaxed aluminum indium gallium nitride layers with misfit dislocations, 2014.
Feneberg, M., C. Lidig, K. Lange, M. E. White, M. Y. Tsai, J. S. Speck, O. Bierwagen, and R. Goldhahn, "Anisotropy of the electron effective mass in rutile SnO2 determined by infrared ellipsometry", physica status solidi (a), vol. 211, no. 1: Wiley Online Library, pp. 82–86, 2014.

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