Publications

Found 261 results
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2023
Wang, M., F. Wu, Y. Yao, C. Zollner, M. Iza, M. Lam, S. P. DenBaars, S. Nakamura, and J. S. Speck, "10.6% external quantum efficiency germicidal UV-LEDs grown on thin highly conductive n-AlGaN", Applied Physics Letters, vol. 123, issue 23, 2023.
Marcinkevičius, S., J. Ewing, R. Yapparov, F. Wu, S. Nakamura, and J. S. Speck, "Experimental evidence of hole injection through V-defects in long wavelength GaN-based LEDs", Applied Physics Letters, vol. 123, issue 20, 2023.
Yao, Y., H. Li, M. Wang, P. Li, M. Lam, M. Iza, J. S. Speck, S. P. DenBaars, and S. Nakamura, "High external quantum efficiency (6.8%) UV-A LEDs on AlN templates with quantum barrier optimization", Optics Express, vol. 31, issue 18, pp. 28649-28657, 2023.
Li, P., H. Li, Y. Yao, K. Shek Qwah, M. Iza, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Hybrid tunnel junction enabled independent junction control of cascaded InGaN blue/green micro-light-emitting diodes", Opt. Express, vol. 31, pp. 7572–7578, Feb, 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.
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.
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.
Yapparov, R., C. Lynsky, Y. Chao Chow, S. Nakamura, S. P. DenBaars, J. S. Speck, and S. Marcinkevičius, "Engineering of quantum barriers for efficient InGaN quantum well LEDs", Optica Advanced Photonics Congress 2022: Optica Publishing Group, 2022.
Yao, Y., C. J. Zollner, M. Wang, M. Iza, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Polarization-Enhanced p-AlGaN Superlattice Optimization for GUV LED", IEEE Journal of Quantum Electronics, vol. 58, pp. 1-9, 2022.
Li, P., H. Li, M. S. Wong, P. Chan, Y. Yang, H. Zhang, M. Iza, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Progress of InGaN-Based Red Micro-Light Emitting Diodes", Crystals, vol. 12, pp. 541, 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.
Yao, Y., H. Li, P. Li, C. J. Zollner, M. Wang, M. Iza, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Size dependent characteristics of AlGaN-based deep ultraviolet micro-light-emitting-diodes", Applied Physics Express, vol. 15, pp. 064003, may, 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.
2021
Wang, J., B. K. Saifaddin, C. J. Zollner, B. Bonef, A. S. Almogbel, Y. Yao, M. Iza, Y. Zhang, M. N. Fireman, E. C. Young, et al., "High conductivity n-Al0.6Ga0.4N by ammonia-assisted molecular beam epitaxy for buried tunnel junctions in UV emitters", Opt. Express, vol. 29, pp. 40781–40794, Dec, 2021.
Wang, J., B. K. Saifaddin, C. J. Zollner, B. Bonef, A. S. Almogbel, Y. Yao, M. Iza, Y. Zhang, M. N. Fireman, E. C. Young, et al., "High conductivity n-Al0.6Ga0.4N by ammonia-assisted molecular beam epitaxy for buried tunnel junctions in UV emitters", Opt. Express, vol. 29, pp. 40781–40794, Dec, 2021.
Li, P., A. David, H. Li, H. Zhang, C. Lynsky, Y. Yang, M. Iza, J. S. Speck, S. Nakamura, and S. P. DenBaars, "High-temperature electroluminescence properties of InGaN red 40 × 40 μm2 micro-light-emitting diodes with a peak external quantum efficiency of 3.2\%", Applied Physics Letters, vol. 119, 12, 2021.
Montgomery, R. H., Y. Zhang, C. Yuan, S. Kim, J. Shi, T. Itoh, A. Mauze, S. Kumar, J. Speck, and S. Graham, "Thermal management strategies for gallium oxide vertical trench-fin MOSFETs", Journal of Applied Physics, vol. 129, pp. 085301, 2021.
Shi, J., A. Krishnan, A. F. M. Anha Bhuiyan, Y. Rui Koh, K. Huynh, A. Mauze, S. Mu, B. M. Foley, H. Ahmad, T. Itoh, et al., "Thermal Transport Across Al-(AlxGa1-x)2O3 and Al-Ga2O3 Interfaces", International Electronic Packaging Technical Conference and Exhibition, vol. ASME 2021 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, 10, 2021.

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