Publications

Found 63 results
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Filters: Author is Speck, James  [Clear All Filters]
2022
Korlacki, R\l., M. Hilfiker, J. Knudtson, M. Stokey, U. Kilic, A. Mauze, Y. Zhang, J. Speck, V. Darakchieva, and M. Schubert, "Strain and Composition Dependencies of the Near-Band-Gap Optical Transitions in Monoclinic (AlxGa1−x)2O3 Alloys with Coherent Biaxial In-Plane Strain on Ga2O3(010)", Phys. Rev. Appl., vol. 18, pp. 064019, Dec, 2022.
Green, A. J., J. Speck, G. Xing, P. Moens, F. Allerstam, K. Gumaelius, T. Neyer, A. Arias-Purdue, V. Mehrotra, A. Kuramata, et al., "β-Gallium oxide power electronics", APL Materials, vol. 10, 02, 2022.
2017
Megalini, L., B. Cabinian, B. Bonef, H. Zhao, T. Mates, J. Speck, J. Bowers, and J. Klamkin, "1550-nm InGaAsP multi-quantum-well structures in InP nano-ridges by selective MOCVD growth on SOI substrates", Integrated Photonics Research, Silicon and Nanophotonics: Optical Society of America, pp. ITu2A–3, 2017.
Moser, N., J. McCandless, A. Crespo, K. Leedy, A. Green, A. Neal, S. Mou, E. Ahmadi, J. Speck, K. Chabak, et al., "Ge-Doped $${$$\backslash$beta$}$ $-Ga2O3 MOSFETs", IEEE Electron Device Letters, vol. 38, no. 6: IEEE, pp. 775–778, 2017.
Alema, F., B. Hertog, A. V. Osinsky, P. Mukhopadhyay, M. Toporkov, W. V. Schoenfeld, E. Ahmadi, and J. Speck, "Vertical solar blind Schottky photodiode based on homoepitaxial Ga 2 O 3 thin film", Oxide-based Materials and Devices VIII, vol. 10105: International Society for Optics and Photonics, pp. 101051M, 2017.
2016
Speck, J., "Development of β-Ga2O3 Materials", Meeting Abstracts, no. 24: The Electrochemical Society, pp. 1244–1244, 2016.
Becerra, D., L. Kuritzky, J. Nedy, A. Abbas, A. Pourhashemi, R. Farrell, D. Cohen, S. DenBaars, J. Speck, and S. Nakamura, "Measurement of internal loss, injection efficiency, and gain for continuous-wave semipolar (202Ø1Ø) III-nitride laser diodes", Compound Semiconductor Week (CSW)[Includes 28th International Conference on Indium Phosphide & Related Materials (IPRM) & 43rd International Symposium on Compound Semiconductors (ISCS), 2016: IEEE, pp. 1–1, 2016.
Speck, J., "Point and Extended Defects in GaN-based Materials", APS March Meeting Abstracts, 2016.
Kowsz, S., C. Pynn, R. Farrell, J. Speck, S. DenBaars, and S. Nakamura, "Tunnel junction devices with monolithic optically pumped and electrically injected InGaN quantum wells for polarized white light emission", Compound Semiconductor Week (CSW)[Includes 28th International Conference on Indium Phosphide & Related Materials (IPRM) & 43rd International Symposium on Compound Semiconductors (ISCS), 2016: IEEE, pp. 1–1, 2016.
2015
Kuritzky, L., D. Myers, K. Kelchner, S. Nakamura, S. DenBaars, C. Weisbuch, and J. Speck, "$ m $-Plane GaN Growth on``Double Miscut''Bulk Substrates for Blue Laser Diode Applications", Bulletin of the American Physical Society, vol. 60: APS, 2015.
Galiano, K., D. Gleason, P. Krishna Paul, Z. Zhang, D. Cardwell, B. McSkimming, J. Speck, A. Arehart, S. Ringel, and J. Pelz, "Spatial Localization and Variation in Defect-Related Electron Traps in GaN Materials", Bulletin of the American Physical Society: APS, 2015.
Speck, J., "Unraveling the Efficiency Limits of GaN-Based Emitters and the Surprising Connection to Electron Devices", Meeting Abstracts, no. 23: The Electrochemical Society, pp. 1449–1449, 2015.
2014
Shen, C., T. Khee Ng, B. Janjua, A. Alyamani, M. M. El-Desouki, J. Speck, S. DenBaars, and B. Ooi, "Optical gain and absorption of 420 nm InGaN-based laser diodes grown on m-plane GaN substrate", Asia Communications and Photonics Conference: Optical Society of America, pp. AW4A–1, 2014.
2013
Shivaraman, R., Y-R. Wu, S. Choi, R. Chung, and J. Speck, "Atom Probe Tomography of III-Nitrides Based Semiconducting Devices", Microscopy and Microanalysis, vol. 19, no. S2: Cambridge University Press, pp. 956–957, 2013.
DenBaars, SP., J. Speck, and S. Nakamura, "Energy savings potential of GaN LEDs for energy efficient lighting and future research directions", Asia Communications and Photonics Conference: Optical Society of America, pp. ATh2A–1, 2013.
D'evelyn, M. P., J. Speck, W. Houck, M. Schmidt, and A. Chakraborty, Large area nonpolar or semipolar gallium and nitrogen containing substrate and resulting devices, 2013.
Metcalfe, G., N. Woodward, H. Shen, M. Wraback, P. Shan Hsu, and J. Speck, "Photoreflectance and Strain Relaxation Studies of Semipolar InGaN", APS Meeting Abstracts, 2013.
Speck, J., "Progress in nonpolar and semipolar GaN-based LEDs and laser diodes", ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, vol. 246: AMER CHEMICAL SOC 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2013.
2012
Jewell, J., D. Simeonov, S-C. Huang, Y-L. Hu, S. Nakamura, J. Speck, and C. Weisbuch, "Double embedded photonic crystals for extraction of guided light in light-emitting diodes", Applied Physics Letters, vol. 100, no. 17: AIP, pp. 171105, 2012.
Matioli, E., S. Brinkley, K. M. Kelchner, Y-L. Hu, S. Nakamura, S. DenBaars, J. Speck, and C. Weisbuch, "High-brightness polarized light-emitting diodes", Light: Science & Applications, vol. 1, no. 8: Nature Publishing Group, pp. e22, 2012.
2011
Pimputkar, S., S. Kawabata, J. Speck, and S. Nakamura, "Bulk GaN Growth on GaN Seeds of Varying Orientations in Supercritical Basic Ammonia", Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States.[np]. Jun: Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States, 2011.
Zhang, Z., C. Hurni, A. Arehart, J. Speck, and S. Ringel, "Deep Traps in M-Plane GaN Grown by Ammonia MBE", Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States.[np]. Jun: Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States, 2011.
Sasikumar, A., A. Arehart, S. Kaun, M. Hoi Wong, J. Speck, U. Mishra, and S. Ringe, "Direct Correlation between EC-0. 57 eV Trap Generation and Field-Induced Degradation in AlGaN/GaN High Electron Mobility Transistors", Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States.[np]. Jun: Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States, 2011.
Lang, J., C. Neufeld, C. Hurni, S. Cruz, E. Matioli, U. Mishra, and J. Speck, "High External Quantum Efficiency and Fill-Factor InGaN-Based Solar Cells Grown by NH (3)-MBE", Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States.[np]. Jun: Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States, 2011.
Zhao, Y., S. Tanaka, R. Chung, C-C. Pan, K. Fujito, D. Feezell, J. Speck, S. DenBaars, and S. Nakamura, "Highly Polarized Spontaneous Emission from Semipolar(20-2-1) InGaN/GaN Light-Emitting Diodes", Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States.[np]. Jun: Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P. O. Box 430 Warrendale PA 15086 United States, 2011.

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