Efficiency Dependence on Degree of Localization States in GaN-Based Asymmetric Two-Step Light-Emitting Diode With a Low Indium Content InGaN Shallow Step

Cheng Huang Kuo, Y. K. Fu, G. C. Chi, Shoou Jinn Chang

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

GaN-based asymmetric two-step light-emitting diodes (LEDs) with a low indium content (LIn) InGaN shallow step was proposed and fabricated. It was found the LIn-InGaN shallow step can significantly enhance phase separation and/or inhomogeneous indium distribution in the active In0.27Ga0.73N layer. By inserting an In0.08Ga0.92N shallow step, it was found that we can enhance LED output power by a factor of 2.27 with an injection current of 20 mA.

Original languageEnglish
Pages (from-to)391-395
Number of pages5
JournalIEEE Journal of Quantum Electronics
Volume46
Issue number3
DOIs
Publication statusPublished - 2010 Mar

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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