Novel approaches for high-efficiency InGaN quantum wells light-emitting diodes: Device physics and epitaxy engineering

Nelson Tansu*, Hongping Zhao, Jing Zhang, Guangyu Liu, Xiaohang Li, Yik Khoon Ee, Renbo Song, Takahiro Toma, Le Zhao, G. S. Huang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The challenges and approaches for high-efficiency InGaN quantum wells (QWs) light-emitting diodes (LEDs) are presented. The studies include designs, growths, and device characteristics of 1) InGaN-based QWs LEDs with enhanced matrix element for realizing green-emitting LEDs with high internal quantum efficiency, and 2) InGaN QW LEDs device structure with lattice-matched AlInN-barrier to suppress efficiency-droop in nitride LEDs. Other approaches to improve the efficiency of the nitride LEDs will be discussed as follow: 1) surface plasmon LEDs, 2) new growth approach for dislocation density reduction in GaN, and 3) novel approaches for light extraction efficiency improvement of III-Nitride LEDs.

Original languageEnglish (US)
Title of host publicationLight-Emitting Diodes
Subtitle of host publicationMaterials, Devices, and Applications for Solid State Lighting XV
DOIs
StatePublished - Mar 28 2011
EventLight-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XV - San Francisco, CA, United States
Duration: Jan 25 2011Jan 27 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7954
ISSN (Print)0277-786X

Other

OtherLight-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XV
CountryUnited States
CitySan Francisco, CA
Period01/25/1101/27/11

Keywords

  • III-Nitride
  • InGaN QWs
  • MOCVD epitaxy
  • light emitting diodes
  • light extraction efficiency

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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