Publications

Found 44 results
Author Title Type [ Year(Asc)]
Filters: Author is Weisbuch, Claude  [Clear All Filters]
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.
Sauty, M., N. Alyabyeva, C. Lynsky, Y. Chao Chow, S. Nakamura, J. S. Speck, Y. Lassailly, A. C. H. Rowe, C. Weisbuch, and J. Peretti, "Probing Local Emission Properties in InGaN/GaN Quantum Wells by Scanning Tunneling Luminescence Microscopy", physica status solidi (b), vol. 260, pp. 2200365, 2023.
2022
Ho, C-H., J. S. Speck, C. Weisbuch, and Y-R. Wu, "Efficiency and Forward Voltage of Blue and Green Lateral LEDs with V-shaped Defects and Random Alloy Fluctuation in Quantum Wells", Phys. Rev. Appl., vol. 17, pp. 014033, Jan, 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.
2020
Lynsky, C., A. I. Alhassan, G. Lheureux, B. Bonef, S. P. DenBaars, S. Nakamura, Y-R. Wu, C. Weisbuch, and J. S. Speck, "Barriers to carrier transport in multiple quantum well nitride-based $c$-plane green light emitting diodes", Phys. Rev. Materials, vol. 4, pp. 054604, May, 2020.
Aleksiejūnas, R., K. Nomeika, O. Kravcov, S. Nargelas, L. Kuritzky, C. Lynsky, S. Nakamura, C. Weisbuch, and J. S. Speck, "Impact of Alloy-Disorder-Induced Localization on Hole Diffusion in Highly Excited c-Plane and m-Plane InGaN Quantum Wells", Phys. Rev. Applied, vol. 14, pp. 054043, Nov, 2020.
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.
2018
Espenlaub, A. C., A. I. Alhassan, S. Nakamura, C. Weisbuch, and J. S. Speck, "Auger-generated hot carrier current in photo-excited forward biased single quantum well blue light emitting diodes", Applied Physics Letters, vol. 112, no. 14: AIP Publishing, pp. 141106, 2018.
Hahn, W., J-M. Lentali, P. Polovodov, N. Young, J. S. Speck, C. Weisbuch, M. Filoche, F. Maroun, L. Martinelli, Y. Lassailly, et al., "Experimental evidence of nanometer-scale localized recombination due to random In fluctuations in InGaN/GaN quantum wells (Conference Presentation)", Physics and Simulation of Optoelectronic Devices XXVI, vol. 10526: International Society for Optics and Photonics, pp. 105261N, 2018.
2017
Marcinkevičius, S., T. K. Uždavinys, H. M. Foronda, D. E. Cohen, J. S. Speck, and C. Weisbuch, "Evaluation of intervalley energy of GaN conduction band by ultrafast pump-probe spectroscopy (Conference Presentation)", Gallium Nitride Materials and Devices XII, vol. 10104: International Society for Optics and Photonics, pp. 101040L, 2017.
Kuritzky, L. Y., A. C. Espenlaub, B. P. Yonkee, C. D. Pynn, S. P. DenBaars, S. Nakamura, C. Weisbuch, and J. S. Speck, "High wall-plug efficiency blue III-nitride LEDs designed for low current density operation", Optics express, vol. 25, no. 24: Optical Society of America, pp. 30696–30707, 2017.
Piccardo, M., C-K. Li, Y-R. Wu, J. S. Speck, B. Bonef, R. M. Farrell, M. Filoche, L. Martinelli, J. Peretti, and C. Weisbuch, "Localization landscape theory of disorder in semiconductors. II. Urbach tails of disordered quantum well layers", Physical Review B, vol. 95, no. 14: American Physical Society, pp. 144205, 2017.
Li, C-K., M. Piccardo, L-S. Lu, S. Mayboroda, L. Martinelli, J. Peretti, J. S. Speck, C. Weisbuch, M. Filoche, and Y-R. Wu, "Localization landscape theory of disorder in semiconductors. III. Application to carrier transport and recombination in light emitting diodes", Physical Review B, vol. 95, no. 14: American Physical Society, pp. 144206, 2017.
2016
Marcinkevičius, S., T. K. Uždavinys, H. M. Foronda, D. A. Cohen, C. Weisbuch, and J. S. Speck, "Intervalley energy of GaN conduction band measured by femtosecond pump-probe spectroscopy", Physical Review B, vol. 94, no. 23: American Physical Society, pp. 235205, 2016.
2015
Weisbuch, C., M. Piccardo, L. Martinelli, J. Iveland, J. Peretti, and J. S. Speck, "The efficiency challenge of nitride light-emitting diodes for lighting", physica status solidi (a), vol. 212, no. 5, pp. 899–913, 2015.
Kuritzky, L. Y., D. J. Myers, J. Nedy, K. M. Kelchner, S. Nakamura, S. P. DenBaars, C. Weisbuch, and J. S. Speck, "Electroluminescence characteristics of blue InGaN quantum wells on m-plane GaN ìdouble miscutî substrates", Applied Physics Express, vol. 8, no. 6: IOP Publishing, pp. 061002, 2015.
Nedy, J. G., N. G. Young, K. M. Kelchner, Y. Hu, R. M. Farrell, S. Nakamura, S. P. DenBaars, C. Weisbuch, and J. S. Speck, "Low damage dry etch for III-nitride light emitters", Semiconductor Science and Technology, vol. 30, no. 8: IOP Publishing, pp. 085019, 2015.
Piccardo, M., J. Iveland, L. Martinelli, S. Nakamura, J. Won Choi, J. S. Speck, C. Weisbuch, and J. Peretti, "Low-energy electro-and photo-emission spectroscopy of GaN materials and devices", Journal of Applied Physics, vol. 117, no. 11: AIP Publishing, pp. 112814, 2015.
Kuritzky, L., D. Myers, K. Kelchner, S. Nakamura, S. DenBaars, C. Weisbuch, and J. Speck, "$ m $-Plane GaN Growth on``Double Miscut''Bulk Substrates for Blue Laser Diode Applications", Bulletin of the American Physical Society, vol. 60: APS, 2015.
Weisbuch, C., M. Piccardo, L. Martinelli, J. Iveland, J. Peretti, and J. S. Speck, "Recent and forthcoming publications in pss", Phys. Status Solidi A, vol. 212, no. 4, pp. 713, 2015.
2014
Iveland, J., J. Speck, L. Martinelli, J. Peretti, and C. Weisbuch, "Auger effect identified as main cause of efficiency droop in leds", SPIE Newsroom, pp. 1–4, 2014.
Piccardo, M., L. Martinelli, J. Iveland, N. Young, S. P. DenBaars, S. Nakamura, J. S. Speck, C. Weisbuch, and J. Peretti, "Determination of the first satellite valley energy in the conduction band of wurtzite GaN by near-band-gap photoemission spectroscopy", Physical Review B, vol. 89, no. 23: APS, pp. 235124, 2014.
Peretti, J., C. Weisbuch, J. Iveland, M. Piccardo, L. Martinelli, and J. S. Speck, "Identification of Auger effect as the dominant mechanism for efficiency droop of LEDs", Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII, vol. 9003: International Society for Optics and Photonics, pp. 90030Z, 2014.
Iveland, J., M. Piccardo, L. Martinelli, J. Peretti, J. Won Choi, N. Young, S. Nakamura, J. S. Speck, and C. Weisbuch, "Origin of electrons emitted into vacuum from InGaN light emitting diodes", Applied Physics Letters, vol. 105, no. 5: AIP Publishing, pp. 052103, 2014.
2013
Iveland, J., L. Martinelli, J. Peretti, J. S. Speck, and C. Weisbuch, "Direct measurement of Auger electrons emitted from a semiconductor light-emitting diode under electrical injection: identification of the dominant mechanism for efficiency droop", Physical review letters, vol. 110, no. 17: American Physical Society, pp. 177406, 2013.

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