Publications

Found 859 results
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2023
Chow, Y. Chao, T. Tak, F. Wu, J. Ewing, S. Nakamura, S. P. DenBaars, Y. Ren Wu, C. Weisbuch, and J. S. Speck, "Origins of the high-energy electroluminescence peaks in long-wavelength (~ 495-685 nm) InGaN light-emitting diodes", Applied Physics Letters, vol. 123, issue 9, 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.
Wu, F., J. Ewing, C. Lynsky, M. Iza, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Structure of V-defects in long wavelength GaN-based light emitting diodes", Journal of Applied Physics, vol. 133, 01, 2023.
Wu, F., J. Ewing, C. Lynsky, M. Iza, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Structure of V-defects in long wavelength GaN-based light emitting diodes", Journal of Applied Physics, vol. 133, 01/2023.
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
Mauze, A., T. Itoh, Y. Zhang, E. Deagueros, F. Wu, and J. S. Speck, "Coherently strained (001) β-(AlxGa1−x)2O3 thin films on β-Ga2O3: Growth and compositional analysis", Journal of Applied Physics, vol. 132, 09, 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.
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.
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.
Chow, Y. C., C. Lynsky, S. Nakamura, S. P. DenBaars, C. Weisbuch, and J. S. Speck, "Impact of doped barriers on the recombination coefficients of c-plane InGaN/GaN single quantum well light-emitting diodes", Applied Physics Letters, vol. 121, 11, 2022.
Lynsky, C., G. Lheureux, B. Bonef, K. Shek Qwah, R. C. White, S. P. DenBaars, S. Nakamura, Y-R. Wu, C. Weisbuch, and J. S. Speck, "Improved Vertical Carrier Transport for Green III-Nitride LEDs Using $(\mathrmIn,\mathrmGa)\mathrmN$ Alloy Quantum Barriers", Phys. Rev. Appl., vol. 17, pp. 054048, May, 2022.
Ewing, J., C. Lynsky, J. Zhang, P. Shapturenka, M. Wong, J. Smith, M. Iza, J. S. Speck, and S. P. DenBaars, "Influence of Superlattice Structure on V-Defect Distribution, External Quantum Efficiency and Electroluminescence for Red InGaN Based µLEDs on Silicon", Crystals, vol. 12, pp. 1216, 2022.
Wong, M. S., P. Chan, N. Lim, H. Zhang, R. C. White, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Low Forward Voltage III-Nitride Red Micro-Light-Emitting Diodes on a Strain Relaxed Template with an InGaN Decomposition Layer", Crystals, vol. 12, pp. 721, 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.
Wong, M. S., J. S. Speck, S. Nakamura, and S. P. DenBaars, "Progress in III-Nitride Tunnel Junctions for Optoelectronic Devices", IEEE Journal of Quantum Electronics, vol. 58, pp. 1-11, 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.
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.
2021
Wong, M. S., D. Melchert, M. Haggmark, D. Myers, C. Lee, S. Grandrothula, M. de Vries, D. Gianola, M. Begley, T. Magarlith, et al., "Acousto-fluidic assembly of III-nitride micro-light-emitting diodes with magnetic alignment", Light-Emitting Devices, Materials, and Applications XXV: International Society for Optics and Photonics, 2021.
Wong, M. S., D. Melchert, M. Haggmark, D. Myers, C. Lee, S. Grandrothula, M. de Vries, D. Gianola, M. Begley, T. Magarlith, et al., "Acousto-fluidic assembly of III-nitride micro-light-emitting diodes with magnetic alignment", Light-Emitting Devices, Materials, and Applications XXV: International Society for Optics and Photonics, 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.
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.

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