Abstract

Electroluminescence refrigeration in light emitting diodes is studied by taking into account carrier transport, carrier recombination, and influence of the dimensionality of electronic density of states (DOS) in active region. The cooling process happens when carriers transport from the metal contacts to the barrier layers. For a given bias voltage, the cooling power density decreases monotonically with the dimension of the DOS and increases as the carrier effective masses increases.

Original languageEnglish (US)
Pages (from-to)1387-1390
Number of pages4
JournalSolid-State Electronics
Volume51
Issue number10 SPEC. ISS
DOIs
StatePublished - Oct 2007

Fingerprint

Electronic density of states
Carrier transport
Electroluminescence
Refrigeration
electroluminescence
Cooling
cooling
barrier layers
Bias voltage
electronics
Light emitting diodes
radiant flux density
electric contacts
light emitting diodes
Metals
electric potential
metals

Keywords

  • Density of states
  • Electroluminescence refrigeration
  • Semiconductor optical refrigeration
  • Thermoelectric cooling

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Impact of electronic density of states on electroluminescence refrigeration. / Yu, S. Q.; Wang, J. B.; Ding, D.; Johnson, Shane; Vasileska, Dragica; Zhang, Yong-Hang.

In: Solid-State Electronics, Vol. 51, No. 10 SPEC. ISS, 10.2007, p. 1387-1390.

Research output: Contribution to journalArticle

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AU - Zhang, Yong-Hang

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AB - Electroluminescence refrigeration in light emitting diodes is studied by taking into account carrier transport, carrier recombination, and influence of the dimensionality of electronic density of states (DOS) in active region. The cooling process happens when carriers transport from the metal contacts to the barrier layers. For a given bias voltage, the cooling power density decreases monotonically with the dimension of the DOS and increases as the carrier effective masses increases.

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