Publications

Found 261 results
Author Title Type [ Year(Desc)]
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2016
Oh, S. Ho, B. P. Yonkee, M. Cantore, R. M. Farrell, J. S. Speck, S. Nakamura, and S. P. DenBaars, "Semipolar III–nitride light-emitting diodes with negligible efficiency droop up to 1 W", Applied Physics Express, vol. 9, no. 10: IOP Publishing, pp. 102102, 2016.
Yonkee, BP., EC. Young, SP. DenBaars, S. Nakamura, and JS. Speck, "Silver free III-nitride flip chip light-emitting-diode with wall plug efficiency over 70% utilizing a GaN tunnel junction", Applied Physics Letters, vol. 109, no. 19: AIP Publishing, pp. 191104, 2016.
Yonkee, BP., EC. Young, SP. DenBaars, S. Nakamura, and JS. Speck, "Silver free III-nitride flip chip light-emitting-diode with wall plug efficiency over 70% utilizing a GaN tunnel junction", Applied Physics Letters, vol. 109, no. 19: AIP Publishing, pp. 191104, 2016.
2017
Foronda, H. M., B. Mazumder, E. C. Young, M. A. Laurent, Y. Li, S. P. DenBaars, and J. S. Speck, "Analysis of Vegardís law for lattice matching InxAl1- xN to GaN by metalorganic chemical vapor deposition", Journal of Crystal Growth, vol. 475: North-Holland, pp. 127–135, 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.
Yonkee, B. P., E. C. Young, S. P. DenBaars, J. S. Speck, and S. Nakamura, "High reflectivity Ohmic contacts to n-GaN utilizing vacuum annealed aluminum", Semiconductor Science and Technology, vol. 33, no. 1: IOP Publishing, pp. 015015, 2017.
Yonkee, B. P., E. C. Young, S. P. DenBaars, J. S. Speck, and S. Nakamura, "High reflectivity Ohmic contacts to n-GaN utilizing vacuum annealed aluminum", Semiconductor Science and Technology, vol. 33, no. 1: IOP Publishing, pp. 015015, 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.
Hwang, D., N. G. Young, B. Yonkee, B. K. Saifaddin, S. P. DenBaars, J. S. Speck, and S. Nakamura, Iii-v micro-led arrays and methods for preparing the same, 2017.
Hwang, D., N. G. Young, B. Yonkee, B. K. Saifaddin, S. P. DenBaars, J. S. Speck, and S. Nakamura, Iii-v micro-led arrays and methods for preparing the same, 2017.
Forman, C. A., S. Lee, E. C. Young, J. T. Leonard, D. A. Cohen, B. P. Yonkee, T. Margalith, R. M. Farrell, S. P. DenBaars, J. S. Speck, et al., "Nonpolar GaN-based vertical-cavity surface-emitting lasers", Photonics Conference (IPC), 2017 IEEE: IEEE, pp. 233–234, 2017.
Forman, C. A., S. Lee, E. C. Young, J. T. Leonard, D. A. Cohen, B. P. Yonkee, T. Margalith, R. M. Farrell, S. P. DenBaars, J. S. Speck, et al., "Nonpolar GaN-based vertical-cavity surface-emitting lasers", Photonics Conference (IPC), 2017 IEEE: IEEE, pp. 233–234, 2017.
Iso, K., H. Yamada, M. Saito, A. Hirai, S. P. DenBaars, J. S. Speck, and S. Nakamura, Planar nonpolar group iii-nitride films grown on miscut substrates, 2017.
Mughal, A. J., E. C. Young, A. I. Alhassan, J. Back, S. Nakamura, J. S. Speck, and S. P. DenBaars, "Polarization-enhanced InGaN/GaN-based hybrid tunnel junction contacts to GaN p–n diodes and InGaN LEDs", Applied Physics Express, vol. 10, no. 12: IOP Publishing, pp. 121006, 2017.
Forman, C., J. Leonard, B. Yonkee, C. Pynn, T. Mates, D. Cohen, R. Farrell, T. Margalith, S. DenBaars, J. Speck, et al., "Semipolar (202Ø1) III-Nitride P-Down LEDs with in situ anneal to reduce the Mg memory effect", Journal of Crystal Growth, vol. 464: North-Holland, pp. 197–200, 2017.
Fireman, M. N., B. Bonef, E. C. Young, N. Nookala, M. A. Belkin, and J. S. Speck, "Strain compensated superlattices on m-plane gallium nitride by ammonia molecular beam epitaxy", Journal of Applied Physics, vol. 122, no. 7: AIP Publishing, pp. 075105, 2017.
Kowsz, S. J., E. C. Young, B. P. Yonkee, C. D. Pynn, R. M. Farrell, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Using tunnel junctions to grow monolithically integrated optically pumped semipolar III-nitride yellow quantum wells on top of electrically injected blue quantum wells", Optics express, vol. 25, no. 4: Optical Society of America, pp. 3841–3849, 2017.
Kowsz, S. J., E. C. Young, B. P. Yonkee, C. D. Pynn, R. M. Farrell, J. S. Speck, S. P. DenBaars, and S. Nakamura, "Using tunnel junctions to grow monolithically integrated optically pumped semipolar III-nitride yellow quantum wells on top of electrically injected blue quantum wells", Optics express, vol. 25, no. 4: Optical Society of America, pp. 3841–3849, 2017.
2018
Seres, J., E. Seres, C. Serrat, E. C. Young, J. S. Speck, and T. Schumm, All-solid-state VUV frequency comb at 160 nm using multi-harmonic generation in a non-linear femtosecond enhancement cavity, dec, 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, 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.
Alhassan, A. I., E. C. Young, A. Y. Alyamani, A. Albadri, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Reduced-droop green III–nitride light-emitting diodes utilizing GaN tunnel junction", Applied Physics Express, vol. 11, no. 4: IOP Publishing, pp. 042101, 2018.
2019
Seres, J., E. Seres, C. Serrat, E. C. Young, J. S. Speck, and T. Schumm, "All-solid-state VUV frequency comb at 160 nm using high-harmonic generation in nonlinear femtosecond enhancement cavity", Opt. Express, vol. 27, pp. 6618–6628, Mar, 2019.

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