Publications

Found 632 results
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2019
Kang, C. Hong, G. Liu, C. Lee, O. Alkhazragi, J. M. Wagstaff, K-H. Li, F. Alhawaj, T. Khee Ng, J. S. Speck, S. Nakamura, et al., "Semipolar (202̅1̅) InGaN/GaN micro-photodetector for gigabit-per-second visible light communication", Applied Physics Express, vol. 13, pp. 014001, nov, 2019.
Mehari, S., D. A. Cohen, D. L. Becerra, H. Zhang, C. Weisbuch, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Semipolar III-nitride laser diodes for solid-state lighting", Novel In-Plane Semiconductor Lasers XVIII: International Society for Optics and Photonics, 2019.
Wong, M. S., C. Lee, D. J. Myers, D. Hwang, J. A. Kearns, T. Li, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Size-independent peak efficiency of III-nitride micro-light-emitting-diodes using chemical treatment and sidewall passivation", Applied Physics Express, vol. 12, pp. 097004, aug, 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.
Filoche, M., M. Piccardo, C-K. Li, Y-R. Wu, J. S. Speck, B. Bonef, R. M. Farrell, S. Mayboroda, J-M. Lentali, L. Martinelli, et al., "Carrier localization induced by alloy disorder in nitride devices: theory and experiments (Conference Presentation)", Gallium Nitride Materials and Devices XIII, vol. 10532: International Society for Optics and Photonics, pp. 105320S, 2018.
Reparaz, J. S., P. K. da Silva, A. H. Romero, J. Serrano, M. R. Wagner, G. Callsen, S. J. Choi, J. S. Speck, and A. R. Goñi, "Comparative study of the pressure dependence of optical-phonon transverse-effective charges and linewidths in wurtzite InN", Phys. Rev. B, vol. 98, pp. 165204, Oct, 2018.
Alhassan, A. I., N. G. Young, R. M. Farrell, C. Pynn, F. Wu, A. Y. Alyamani, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Development of high performance green c-plane III-nitride light-emitting diodes", Optics express, vol. 26, no. 5: Optical Society of America, pp. 5591–5601, 2018.
Saifaddin, B., C. J. Zollner, A. Almogbel, H. Foronda, F. Wu, A. Albadri, A. Al Yamani, M. Iza, S. Nakamura, S. P. DenBaars, et al., "Developments in AlGaN and UV-C LEDs grown on SiC", Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXII, vol. 10554: International Society for Optics and Photonics, pp. 105541E, 2018.
Hahn, W., J.-M. Lentali, P. Polovodov, N. Young, S. Nakamura, J. S. Speck, C. Weisbuch, M. Filoche, Y.-R. Wu, M. Piccardo, et al., "Evidence of nanoscale Anderson localization induced by intrinsic compositional disorder in InGaN/GaN quantum wells by scanning tunneling luminescence spectroscopy", Phys. Rev. B, vol. 98, pp. 045305, Jul, 2018.
Hahn, W., J.-M. Lentali, P. Polovodov, N. Young, S. Nakamura, J. S. Speck, C. Weisbuch, M. Filoche, Y.-R. Wu, M. Piccardo, et al., "Evidence of nanoscale Anderson localization induced by intrinsic compositional disorder in InGaN/GaN quantum wells by scanning tunneling luminescence spectroscopy", Phys. Rev. B, vol. 98, pp. 045305, Jul, 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.
Myers, D. J., K. Gelžinytė, W. Ying Ho, J. Iveland, L. Martinelli, J. Peretti, C. Weisbuch, and J. S. Speck, "Identification of low-energy peaks in electron emission spectroscopy of InGaN/GaN light-emitting diodes", Journal of Applied Physics, vol. 124, pp. 055703, 2018.
Foronda, H. M., F. Wu, C. Zollner, M. Esmed Alif, B. Saifaddin, A. Almogbel, M. Iza, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Low threading dislocation density aluminum nitride on silicon carbide through the use of reduced temperature interlayers", Journal of Crystal Growth, vol. 483: North-Holland, pp. 134–139, 2018.
Vogt, P., A. Mauze, F. Wu, B. Bonef, and J. S. Speck, "Metal-oxide catalyzed epitaxy (MOCATAXY): the example of the O plasma-assisted molecular beam epitaxy of β-(Al x Ga 1− x ) 2 O 3 /β-Ga 2 O 3 heterostructures", Applied Physics Express, vol. 11, pp. 115503, 2018.
Jiang, R., X. Shen, J. Fang, P. Wang, E. X. Zhang, J. Chen, D. M. Fleetwood, R. D. Schrimpf, S. W. Kaun, E. C. H. Kyle, et al., "Multiple Defects Cause Degradation After High Field Stress in AlGaN/GaN HEMTs", IEEE Transactions on Device and Materials Reliability, vol. 18, pp. 364-376, Sept, 2018.
Mounir, C., I. L. Koslow, T. Wernicke, M. Kneissl, L. Y. Kuritzky, N. L. Adamski, S. Ho Oh, C. D. Pynn, S. P. DenBaars, S. Nakamura, et al., "On the optical polarization properties of semipolar ( 20 2 ¯ 1 ) and ( 20 2 ¯ 1 ¯) InGaN/GaN quantum wells", Journal of Applied Physics, vol. 123, no. 8: AIP Publishing, pp. 085705, 2018.
Kuritzky, L. Y., C. Weisbuch, and J. S. Speck, "Prospects for 100% wall-plug efficient III-nitride LEDs", Opt. Express, vol. 26, pp. 16600–16608, Jun, 2018.
Chen, H-H., J. S. Speck, C. Weisbuch, and Y-R. Wu, "Three dimensional simulation on the transport and quantum efficiency of UVC-LEDs with random alloy fluctuations", Applied Physics Letters, vol. 113, pp. 153504, 2018.
Chen, H-H., J. S. Speck, C. Weisbuch, and Y-R. Wu, "Three dimensional simulation on the transport and quantum efficiency of UVC-LEDs with random alloy fluctuations", Applied Physics Letters, vol. 113, pp. 153504, 2018.
2017
Shen, J-X., D. Wickramaratne, C. E. Dreyer, A. Alkauskas, E. Young, J. S. Speck, and C. G. Van de Walle, "Calcium as a nonradiative recombination center in InGaN", Applied Physics Express, vol. 10, no. 2: IOP Publishing, pp. 021001, 2017.
Li, H., B. Mazumder, B. Bonef, S. Keller, S. Wienecke, J. S. Speck, S. P. DenBaars, and U. K. Mishra, "Characterization of N-polar AlN in GaN/AlN/(Al, Ga) N heterostructures grown by metal-organic chemical vapor deposition", Semiconductor Science and Technology, vol. 32, no. 11: IOP Publishing, pp. 115004, 2017.
Bonef, B., R. Cramer, F. Wu, and J. S. Speck, "Correlated Transmission Electron Microscopy and Atom Probe Tomography study of Boron distribution in BGaN", Microscopy and Microanalysis, vol. 23, no. S1: Cambridge University Press, pp. 668–669, 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.
Oshima, Y., E. Ahmadi, S. Kaun, F. Wu, and J. S. Speck, "Growth and etching characteristics of (001) β-Ga2O3 by plasma-assisted molecular beam epitaxy", Semiconductor Science and Technology, vol. 33, no. 1: IOP Publishing, pp. 015013, 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.

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