Publications

Found 209 results
Author Title Type [ Year(Desc)]
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2016
Tsai, M-Y., O. Bierwagen, and J. S. Speck, "Epitaxial Sb-doped SnO2 and Sn-doped In2O3 transparent conducting oxide contacts on GaN-based light emitting diodes", Thin Solid Films, vol. 605: Elsevier, pp. 186–192, 2016.
2017
Megalini, L., B. Bonef, B. C. Cabinian, H. Zhao, A. Taylor, J. S. Speck, J. E. Bowers, and J. Klamkin, "1550-nm InGaAsP multi-quantum-well structures selectively grown on v-groove-patterned SOI substrates", Applied Physics Letters, vol. 111, no. 3: AIP Publishing, pp. 032105, 2017.
Rigutti, L., B. Bonef, J. Speck, F. Tang, and RA. Oliver, "Atom probe tomography of nitride semiconductors", Scripta Materialia: Pergamon, 2017.
Alema, F., B. Hertog, A. V. Osinsky, P. Mukhopadhyay, M. Toporkov, W. V. Schoenfeld, E. Ahmadi, and J. Speck, "Vertical solar blind Schottky photodiode based on homoepitaxial Ga 2 O 3 thin film", Oxide-based Materials and Devices VIII, vol. 10105: International Society for Optics and Photonics, pp. 101051M, 2017.
2018
Neal, A. T., S. Mou, S. Rafique, H. Zhao, E. Ahmadi, J. S. Speck, K. T. Stevens, J. D. Blevins, D. B. Thomson, N. Moser, et al., "Donors and deep acceptors in β-Ga2O3", Applied Physics Letters, vol. 113, pp. 062101, 2018.
2019
Feneberg, M., C. Lidig, M. E. White, M. Y. Tsai, J. S. Speck, O. Bierwagen, Z. Galazka, and R. Goldhahn, "Anisotropic optical properties of highly doped rutile SnO2: Valence band contributions to the Burstein-Moss shift", APL Materials, vol. 7, pp. 022508, 2019.
2021
Itoh, T., A. Mauze, Y. Zhang, and J. S. Speck, "Crystal growth on (110) β-Ga2O3 via plasma-assisted molecular beam epitaxy", Oxide-based Materials and Devices XII: International Society for Optics and Photonics, 2021.
Speck, J. S., "Materials progress for the development of beta-Ga2O3 for power electronics", Oxide-based Materials and Devices XII: International Society for Optics and Photonics, 2021.
Mauze, A., T. Itoh, Y. Zhang, and J. S. Speck, "Sn doping of [beta]-Ga2O3 grown by plasma-assisted molecular beam epitaxy", Oxide-based Materials and Devices XII: International Society for Optics and Photonics, 2021.
Farzana, E., F. Alema, W. Ying Ho, A. Mauze, T. Itoh, A. Osinsky, and J. S. Speck, "Vertical β-Ga2O3 Schottky diodes from metal-organic chemical vapor deposition with low on-resistance and high average breakdown field", Oxide-based Materials and Devices XII: International Society for Optics and Photonics, 2021.
2022
Marcinkevičius, S., and J. S. Speck, "Ultrafast carrier dynamics in β-Ga2O3", Oxide-based Materials and Devices XIII: International Society for Optics and Photonics, 2022.
Farzana, E., F. Alema, T. Itoh, N. Hendricks, A. Mauze, A. Osinsky, and J. Speck, "β-Ga2O3 epitaxy and power devices from metal-organic chemical vapor deposition", Oxide-based Materials and Devices XIII: International Society for Optics and Photonics, 2022.
2023
Ho, W. Ying, Y. Chao Chow, Z. Biegler, K. Shek Qwah, T. Tak, A. Wissel-Garcia, I. Liu, F. Wu, S. Nakamura, and J. S. Speck, "Atomic layer etching (ALE) of III-nitrides", Applied Physics Letters, vol. 123, issue 6, 2023.
Tsai, T-Y., K. Shek Qwah, J-P. Banon, M. Filoche, C. Weisbuch, Y-R. Wu, and J. S. Speck, "Carrier localization in III-nitride versus conventional III-V semiconductors: A study on the effects of alloy disorder using landscape theory and the Schrodinger equation", Physical Review Applied, vol. 20, issue 4, 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.
M Taib, I. Md, M. A. Ahmad, E. A. Alias, A. I. Alhassan, I. A. Ajia, M. M. Muhammed, I. S. Roqan, S. P. DenBaars, J. S. Speck, S. Nakamura, et al., "Growth modification via indium surfactant for InGaN/GaN green LED", Semiconductor Science and Technology, vol. 38, pp. 035025, feb, 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.
Tak, T., C. W. Johnson, W. Ying Ho, F. Wu, M. Sauty, S. Rebollo, A. K. Schmid, J. Peretti, Y-R. Wu, C. Weisbuch, et al., "Injection mechanisms in a III-nitride light-emitting diode as seen by self-emissive electron microscopy", Physical Review Applied, vol. 20, issue 6, 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.
Alema, F., T. Itoh, W. Brand, M. Tadjer, A. Osinsky, and J. S. Speck, "N2O grown high Al composition nitrogen doped Beta-(AlGa)2O3/Beta-Ga2O3 using MOCVD", Journal of Vacuum Science and Technology A, vol. 41, issue 4, 2023.
Wong, M. S., H. Zhang, E. S. Trageser, R. M. Anderson, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Narrow ridge III-nitride m-plane violet edge-emitting laser diodes with sidewall passivation using atomic layer deposition", Gallium Nitride Materials and Devices XVIII: International Society for Optics and Photonics, 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.
Ho, W. Ying, C. W. Johnson, T. Tak, M. Sauty, Y. Chao Chow, S. Nakamura, A. Schmid, J. Peretti, C. Weisbuch, and J. S. Speck, "Steady-state junction current distribution in pn GaN diodes measured using low-energy electron microscopy (LEEM)", Applied Physics Letters, vol. 123, issue 3, 2023.
2024
Yapparov, R., T. Tak, J. Ewing, F. Wu, S. Nakamura, S. P. DenBaars, J. S. Speck, and S. Marcinkevičius, "Carrier Diffusion in long wavelength InGaN quantum well LEDs after injection through V-defects", Applied Physics Letters, vol. 125, issue 3, 07/2024.

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