Publications

Found 252 results
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2024
Hendricks, N. S., A. E. Islam, E. A. Sowers, J. Williams, D. M. Dryden, K. J. Liddy, W. Wang, J. S. Speck, and A. J. Green, "Current transport mechanisms of metal/TiO2/Beta-Ga2O3 diodes", Journal of Applied Physics, vol. 135, issue 9, 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.
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.
Wong, M. S., E. S. Trageser, H. Zhang, H-M. Chang, S. Gee, T. Tak, S. Gandrothula, C. Lee, J. S. Speck, S. Nakamura, et al., "III-nitride m-plane violet narrow ridge edge-emitting laser diodes with sidewall passivation using atomic layer deposition", Optics Express, vol. 32, issue 12, 06/2024.
Wong, M. S., E. S. Trageser, H. Zhang, H-M. Chang, S. Gee, T. Tak, S. Gandrothula, C. Lee, J. S. Speck, S. Nakamura, et al., "III-nitride m-plane violet narrow ridge edge-emitting laser diodes with sidewall passivation using atomic layer deposition", Optics Express, vol. 32, issue 12, 06/2024.
Wong, M. S., S. Gee, T. Tak, S. Gandrothula, S. Rebollo, NG. Cha, J. S. Speck, and S. P. DenBaars, "Optical Analysis of III-nitride micro-light-emitting diodes with different sidewall treatments at low current density operation", Japanese Journal of Applied Physics, vol. 63, issue 4, 04/2024.
Wong, M. S., S. Gee, T. Tak, S. Gandrothula, S. Rebollo, NG. Cha, J. S. Speck, and S. P. DenBaars, "Optical Analysis of III-nitride micro-light-emitting diodes with different sidewall treatments at low current density operation", Japanese Journal of Applied Physics, vol. 63, issue 4, 04/2024.
Tak, T., A. Quevedo, F. Wu, S. Gandrothula, J. J. Ewing, S. Gee, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Planarization of p-GaN surfaces on MOCVD grown V-defect engineered GaN-based LEDs", Applied Physics Letters, vol. 124, issue 17, 04/2024.
Tak, T., A. Quevedo, F. Wu, S. Gandrothula, J. J. Ewing, S. Gee, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Planarization of p-GaN surfaces on MOCVD grown V-defect engineered GaN-based LEDs", Applied Physics Letters, vol. 124, issue 17, 04/2024.
2023
Wong, M. S., A. Raj, H-M. Chang, V. Rienzi, F. Wu, J. J. Ewing, E. S. Trageser, S. Gee, N. C. Palmquist, P. Chan, et al., "Improved wall-plug efficiency of III-nitride tunnel junction micro-light-emitting diodes with AlGaN/GaN polarization charges", AIP Advances, vol. 13, 01, 2023.
Li, P., H. Li, Y. Yang, M. S. Wong, M. Iza, M. J. Gordon, J. S. Speck, S. Nakamura, and S. P. DenBaars, "InGaN amber micrometer-scale light-emitting diodes with a peak external quantum efficiency of 5.5%", Applied Physics Express, 2023.
Cadena, R. M., D. R. Ball, E. X. Zhang, S. Islam, A. Senarath, M. W. McCurdy, E. Farzana, J. S. Speck, N. Karom, A. O’Hara, et al., "Low-Energy Ion-Induced Single-Event Burnout in Gallium Oxide Schottky Diodes", IEEE Transactions on Nuclear Science, vol. 70, pp. 363-369, 2023.
Wong, M. S., R. C. White, S. Gee, T. Tak, S. Gandrothula, H. Choi, S. Nakamura, J. S. Speck, and S. P. DenBaars, "Recovering the efficiency of AlGaInP red micro-LEDs using sidewall treatments", Applied Physics Express, vol. 16, issue 6, 2023.
Wong, M. S., R. C. White, S. Gee, T. Tak, S. Gandrothula, H. Choi, S. Nakamura, J. S. Speck, and S. P. DenBaars, "Recovering the efficiency of AlGaInP red micro-LEDs using sidewall treatments", Applied Physics Express, vol. 16, issue 6, 2023.
Li, P., H. Li, Y. Yao, N. Lim, M. Wong, M. Iza, M. J. Gordon, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Significant Quantum Efficiency Enhancement of InGaN Red Micro-Light-Emitting Diodes with a Peak External Quantum Efficiency of up to 6%", ACS Photonics, pp. null, 2023.
Hendricks, N. S., E. Farzana, A. E. Islam, K. D. Leedy, K. J. Liddy, J. Williams, D. M. Dryden, A. M. Adams, J. S. Speck, K. D. Chabak, et al., "Vertical metal-dielectric-semiconductor diode on (001) Beta-Ga2O3 with high-k TiO2 interlayer exhibiting reduced turn-on voltage and leakage current and improved breakdown", Applied Physics Express, vol. 16, issue 7, 2023.
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.
Denbaars, S., M. Wong, P. Li, H. Li, J. Smith, R. White, J. Ewing, P. Shapturenka, M. Gordon, C. Lynsky, et al., "III-nitride-based RGB microLEDs for AR/VR applications", Light-Emitting Devices, Materials, and Applications XXVI: International Society for Optics and Photonics, 2022.
Li, P., H. Li, H. Zhang, Y. Yang, M. S. Wong, C. Lynsky, M. Iza, M. J. Gordon, J. S. Speck, S. Nakamura, et al., "Red InGaN micro-light-emitting diodes (\>620 nm) with a peak external quantum efficiency of 4.5\% using an epitaxial tunnel junction contact", Applied Physics Letters, vol. 120, 03, 2022.
Mukhopadhyay, P., I. Hatipoglu, Y. K. Frodason, J. B. Varley, M. S. Williams, D. A. Hunter, N. K. Gunasekar, P. R. Edwards, R. W. Martin, F. Wu, et al., "Role of defects in ultra-high gain in fast planar tin gallium oxide UV-C photodetector by MBE", Applied Physics Letters, vol. 121, 09, 2022.
Huynh, K., M. E. Liao, A. Mauze, T. Itoh, X. Yan, J. S. Speck, X. Pan, and M. S. Goorsky, "Surface reaction dependence of molecular beam epitaxy grown aluminum on various orientations of β-Ga2O3", APL Materials, vol. 10, 01, 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.
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.

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