Fundamental mechanisms of electroluminescence refrigeration in heterostructure light emitting diodes

S. Q. Yu, J. B. Wang, D. Ding, Shane Johnson, Dragica Vasileska, Yong-Hang Zhang

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

7 Scopus citations

Abstract

The fundamental mechanisms of electroluminescence (EL) refrigeration in heterostructure light emitting diodes, is examined via carrier energy loss (and gain) during transport, relaxation, and recombination, where the contribution of electrons and holes are treated separately. This analysis shows that the EL refrigeration process is a combination of thermoelectric cooling that mainly occurs near the metal/semiconductor contacts and radiative recombination which mainly occurs in the active region. In semiconductors such as GaAs, electrons and holes make different contributions to the refrigeration processes as a result of their different densities of states.

Original languageEnglish (US)
Title of host publicationLight-Emitting Diodes
Subtitle of host publicationResearch, Manufacturing, and Applications XI
DOIs
StatePublished - May 24 2007
EventLight-Emitting Diodes: Research, Manufacturing, and Applications XI - San Jose, CA, United States
Duration: Jan 24 2007Jan 25 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6486
ISSN (Print)0277-786X

Other

OtherLight-Emitting Diodes: Research, Manufacturing, and Applications XI
CountryUnited States
CitySan Jose, CA
Period1/24/071/25/07

Keywords

  • Electroluminescence refrigeration
  • Semiconductor optical refrigeration

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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  • Cite this

    Yu, S. Q., Wang, J. B., Ding, D., Johnson, S., Vasileska, D., & Zhang, Y-H. (2007). Fundamental mechanisms of electroluminescence refrigeration in heterostructure light emitting diodes. In Light-Emitting Diodes: Research, Manufacturing, and Applications XI [648604] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6486). https://doi.org/10.1117/12.701301