Publications

Found 112 results
Author Title Type [ Year(Desc)]
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2019
Hilfiker, M., U. Kilic, A. Mock, V. Darakchieva, S. Knight, R. Korlacki, A. Mauze, Y. Zhang, J. Speck, and M. Schubert, "Dielectric function tensor (1.5 eV to 9.0 eV), anisotropy, and band to band transitions of monoclinic β-(AlxGa1–x)2O3 (x ≤ 0.21) films", Applied Physics Letters, vol. 114, pp. 231901, 2019.
Myers, D. J., K. Gel, A. I. Alhassan, L. Martinelli, J. Peretti, S. Nakamura, C. Weisbuch, and J. S. Speck, "Direct measurement of hot-carrier generation in a semiconductor barrier heterostructure: Identification of the dominant mechanism for thermal droop", Phys. Rev. B, vol. 100, pp. 125303, Sep, 2019.
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.
2021
Monavarian, M., J. Xu, M. Khoury, F. Wu, P. De Mierry, P. Vennéguès, M. A. Belkin, and J. S. Speck, "Defect Tolerance of Intersubband Transitions in Nonpolar $\mathrmGa\mathrmN/(\mathrmAl,\mathrmGa)\mathrmN$ Heterostructures: A Path toward Low-Cost and Scalable Mid- to Far-Infrared Optoelectronics", Phys. Rev. Appl., vol. 16, pp. 054040, Nov, 2021.
"Disorder effects in nitride semiconductors: impact on fundamental and device properties", Nanophotonics, vol. 10, pp. 3–21, 2021.
2022
Li, P., H. Li, Y. Yang, H. Zhang, P. Shapturenka, M. Wong, C. Lynsky, M. Iza, M. J. Gordon, J. S. Speck, et al., "Demonstration of ultra-small 5 × 5 μm2 607 nm InGaN amber micro-light-emitting diodes with an external quantum efficiency over 2\%", Applied Physics Letters, vol. 120, 01, 2022.
Hamdy, S. W., S. P. DenBaars, J. S. Speck, and S. Nakamura, "Designs for III-nitride edge-emitting laser diodes with tunnel junction contacts for low internal optical absorption loss", Optical Engineering, vol. 61, pp. 027102, 2022.
2023
Ho, W. Ying, A. I. Alhassan, C. Lynsky, Y. Chao Chow, D. J. Myers, S. P. DenBaars, S. Nakamura, J. Peretti, C. Weisbuch, and J. S. Speck, "Detection of hot electrons originating from an upper valley at 1.7 eV above the Γ valley in wurtzite GaN using electron emission spectroscopy", Phys. Rev. B, vol. 107, pp. 035303, Jan, 2023.
Mickevičius, J., E. Valkiūnaitė, Ž. Podlipskas, K. Nomeika, S. Nargelas, G. Tamulaitis, Y.C. Chow, S. Nakamura, J.S. Speck, C. Weisbuch, et al., "Dynamics of double-peak photoluminescence in m-plane InGaN/GaN MQWs", Journal of Luminescence, vol. 257, pp. 119732, 2023.
2024
Quevedo, A., F. Wu, T-Y. Tsai, J. J. Ewing, T. Tak, S. Gandrothula, S. Gee, X. Li, S. Nakamura, S. P. DenBaars, et al., "Dislocation half-loop control for optimal V-defect density in GaN-based light emitting diodes", Applied Physics Letters, vol. 125, issue 4, 07/2024.
Marcinkevičius, S., T. Tak, Y. Chao Chow, F. Wu, R. Yapparov, S. P. DenBaars, S. Nakamura, and J. S. Speck, "Dynamics of carrier injection through V-defects in long wavelength GaN LEDs", Applied Physics Letters, vol. 124, issue 18, 04/2024.

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