Investigation of the efficiency-droop mechanism in a GaN based blue light-emitting diodes using a very-fast electrical-optical pump-probe technique

J. W. Shi, Che Wei Lin, Wei Chen, M. L. Lee, J. K. Sheu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electrical-optical pump-probe is used to investigate GaN blue LEDs under different temperatures. Measurement result indicates that under moderate current density (∼200A/cm 2) piezoelectric field induced carrier-escaping cannot be neglected and is responsible for the observed efficiency-droop.

Original languageEnglish
Title of host publicationIEEE Photonic Society 24th Annual Meeting, PHO 2011
Pages709-710
Number of pages2
DOIs
Publication statusPublished - 2011 Dec 1
Event24th Annual Meeting on IEEE Photonic Society, PHO 2011 - Arlington, VA, United States
Duration: 2011 Oct 92011 Oct 13

Publication series

NameIEEE Photonic Society 24th Annual Meeting, PHO 2011

Other

Other24th Annual Meeting on IEEE Photonic Society, PHO 2011
CountryUnited States
CityArlington, VA
Period11-10-0911-10-13

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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