Electrically driven nanoarrow array green LED

J.-R. Chang; S.-P. Chang; Y.-C. Chen; K.-P. Sou; Y.J. Cheng; H.-C. Kuo; C.-Y. Chang

doi:10.1117/12.907749

6 February 2012 Electrically driven nanoarrow array green LED

J.-R. Chang, S.-P. Chang, Y.-C. Chen, K.-P. Sou, Y.J. Cheng, H.-C. Kuo, C.-Y. Chang

Proceedings Volume 8278, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI; 827815 (2012) https://doi.org/10.1117/12.907749
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

An electrically driven nanopyramid green light emitting diode (LED) was demonstrated. The nanopyramid arrays were fabricated from a GaN substrate by patterned nanopillar etch, pillar side wall passivation, and epitaxial regrowth. Multiple quantum wells were selectively grown on the facets of the nanopyramids. The fabricated LED emits green wavelength under electrical injection. The emission exhibits a less carrier density dependent wavelength shift and higher internal quantum efficiency as compared with a reference c-plane sample at the same wavelength. It shows a promising potential for using nanopyramid in high In content LED applications.

Citation Download Citation

J.-R. Chang, S.-P. Chang, Y.-C. Chen, K.-P. Sou, Y.J. Cheng, H.-C. Kuo, and C.-Y. Chang "Electrically driven nanoarrow array green LED", Proc. SPIE 8278, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI, 827815 (6 February 2012); https://doi.org/10.1117/12.907749

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