Publications

Found 522 results
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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.
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.
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.
2021
Wong, M. S., N. C. Palmquist, J. Jiang, P. Chan, C. Lee, P. Li, J. Hun Kang, Y. Hyun Baek, C. Hon Kim, D. A. Cohen, et al., "Effects of activation method and temperature to III-nitride micro-light-emitting diodes with tunnel junction contacts grown by metalorganic chemical vapor deposition", Applied Physics Letters, vol. 119, 11, 2021.
Wong, M. S., N. C. Palmquist, J. Jiang, P. Chan, C. Lee, P. Li, J. Hun Kang, Y. Hyun Baek, C. Hon Kim, D. A. Cohen, et al., "Effects of activation method and temperature to III-nitride micro-light-emitting diodes with tunnel junction contacts grown by metalorganic chemical vapor deposition", Applied Physics Letters, vol. 119, 11, 2021.
Kamikawa, T., S. Gandrothula, H. Li, B. V. Olivia, F. Wu, D. Cohen, J. S. Speck, S. P. DenBaars, and S. Nakamura, "New fabrication method of InGaN laser diode by epitaxial lateral overgrowth and cleavable technique from free-standing non- and semi-polar GaN substrate", Gallium Nitride Materials and Devices XVI: International Society for Optics and Photonics, 2021.
Chow, Y. C., C. Lynsky, F. Wu, S. Nakamura, S. P. DenBaars, C. Weisbuch, and J. S. Speck, "Reduction of efficiency droop in c-plane InGaN/GaN light-emitting diodes using a thick single quantum well with doped barriers", Applied Physics Letters, vol. 119, 11, 2021.
Lynsky, C., R. C. White, Y. Chao Chow, W. Ying Ho, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Role of V-defect density on the performance of III-nitride green LEDs on sapphire substrates", Journal of Crystal Growth, vol. 560-561, pp. 126048, 2021.
2020
Khoury, M., H. Li, B. Bonef, T. Mates, F. Wu, P. Li, M. S. Wong, H. Zhang, J. Song, J. Choi, et al., "560 nm InGaN micro-LEDs on low-defect-density and scalable (202̅1) semipolar GaN on patterned sapphire substrates", Opt. Express, vol. 28, pp. 18150–18159, Jun, 2020.
Gandrothula, S., T. Kamikawa, M. Araki, D. Cohen, J. S. Speck, S. Nakamura, and S. P. DenBaars, "An approach to remove homoepitaxially grown GaN layers by cleavage from the substrate surface", Applied Physics Express, vol. 13, pp. 041003, mar, 2020.
Chow, Y. Chao, C. Lee, M. S. Wong, Y-R. Wu, S. Nakamura, S. P. DenBaars, J. E. Bowers, and J. S. Speck, "Dependence of carrier escape lifetimes on quantum barrier thickness in InGaN/GaN multiple quantum well photodetectors", Opt. Express, vol. 28, pp. 23796–23805, Aug, 2020.
Li, H., H. Zhang, P. Li, M. S. Wong, Y. Chao Chow, S. Pinna, J. Klamkin, P. DeMierry, J. S. Speck, S. Nakamura, et al., "Development of efficient semipolar InGaN long wavelength light-emitting diodes and blue laser diodes grown on a high quality semipolar GaN/sapphire template", Journal of Physics: Photonics, vol. 2, pp. 031003, jun, 2020.
Li, H., P. Li, H. Zhang, Y. Chao Chow, M. S. Wong, S. Pinna, J. Klamkin, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Electrically driven, polarized, phosphor-free white semipolar (20-21) InGaN light-emitting diodes grown on semipolar bulk GaN substrate", Opt. Express, vol. 28, pp. 13569–13575, Apr, 2020.
Wong, M. S., J. A. Kearns, C. Lee, J. M. Smith, C. Lynsky, G. Lheureux, H. Choi, J. Kim, C. Kim, S. Nakamura, et al., "Improved performance of AlGaInP red micro-light-emitting diodes with sidewall treatments", Opt. Express, vol. 28, pp. 5787–5793, Feb, 2020.
Khoury, M., H. Li, P. Li, Y. Chao Chow, B. Bonef, H. Zhang, M. S. Wong, S. Pinna, J. Song, J. Choi, et al., "Polarized monolithic white semipolar (202̅1) InGaN light-emitting diodes grown on high quality (202̅1) GaN/sapphire templates and its application to visible light communication", Nano Energy, vol. 67, pp. 104236, 2020.
Khoury, M., H. Li, P. Li, Y. Chao Chow, B. Bonef, H. Zhang, M. S. Wong, S. Pinna, J. Song, J. Choi, et al., "Polarized monolithic white semipolar (202̅1) InGaN light-emitting diodes grown on high quality (202̅1) GaN/sapphire templates and its application to visible light communication", Nano Energy, vol. 67, pp. 104236, 2020.
Poliani, E., D. Seidlitz, M. Ries, S. J. Choi, J. S. Speck, A. Hoffmann, and M. R. Wagner, "Strong Near-Field Light–Matter Interaction in Plasmon-Resonant Tip-Enhanced Raman Scattering in Indium Nitride", The Journal of Physical Chemistry C, vol. 124, pp. 28178-28185, 2020.
Yapparov, R., Y. Chao Chow, C. Lynsky, F. Wu, S. Nakamura, J. S. Speck, and S. Marcinkevičius, "Variations of light emission and carrier dynamics around V-defects in InGaN quantum wells", Journal of Applied Physics, vol. 128, pp. 225703, 2020.
2019
Cramer, R. C., E. C. H. Kyle, and J. S. Speck, "Band gap bowing for high In content InAlN films", Journal of Applied Physics, vol. 126, pp. 035703, 2019.
Cramer, R. C., J. English, B. Bonef, and J. S. Speck, "BBr3 as a boron source in plasma-assisted molecular beam epitaxy", Journal of Vacuum Science & Technology A, vol. 37, pp. 061502, 2019.
Khoury, M., H. Li, H. Zhang, B. Bonef, M. S. Wong, F. Wu, D. Cohen, P. De Mierry, P. Vennéguès, J. S. Speck, et al., "Demonstration of Electrically Injected Semipolar Laser Diodes Grown on Low-Cost and Scalable Sapphire Substrates", ACS Applied Materials & Interfaces, vol. 11, pp. 47106-47111, 2019.
Sayed, I., B. Bonef, W. Liu, S. Chan, J. Georgieva, J. S. Speck, S. Keller, and U. K. Mishra, "Electrical properties and interface abruptness of AlSiO gate dielectric grown on 0001 ¯ N-polar and (0001) Ga-polar GaN", Applied Physics Letters, vol. 115, pp. 172104, 2019.
Lheureux, G., S. Mehari, D. Cohen, P. Chan, H. Zhang, K. Hamdy, C. Reilly, R. Anderson, E. Zeitz, R. Seshadri, et al., "GaN High-Power Lasers for solid-state lighting", OSA Advanced Photonics Congress (AP) 2019 (IPR, Networks, NOMA, SPPCom, PVLED): Optical Society of America, 2019.
Lheureux, G., S. Mehari, D. Cohen, P. Chan, H. Zhang, K. Hamdy, C. Reilly, R. Anderson, E. Zeitz, R. Seshadri, et al., "GaN High-Power Lasers for solid-state lighting", OSA Advanced Photonics Congress (AP) 2019 (IPR, Networks, NOMA, SPPCom, PVLED): Optical Society of America, 2019.
Chmielewski, A., P. Moradifar, L. Miao, K. A. Lopez, Y. Zhang, A. Mauze, J. S. Speck, and N. Alem, "Investigation of the Atomic and Electronic Structure of β-(Al0.2Ga0.8)2O3 Alloys by STEM-EELS", Microscopy and Microanalysis, vol. 25, pp. 2186–2187, 2019.

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