Tunable thermal quenching of photoluminescence in GaN

M. A. Reshchikov, J. D. Mcnamara, F. Shahedipour-Sandvik

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this work, we report the observation of abrupt and tunable thermal quenching of photoluminescence (PL) in high-resistivity, undoped GaN. The ultraviolet luminescence (UVL) band in these samples exhibited abrupt and tunable quenching, which is similar to behavior observed for p -type GaN:Mg samples. Such behavior has never been observed for undoped GaN and was very rarely reported for other semiconductors. We describe the effect of temperature and excitation intensity on PL in undoped GaN with a phenomenological model involving three defect species. 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Original languageEnglish (US)
Pages (from-to)389-392
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume11
Issue number3-4
DOIs
StatePublished - Jan 1 2014
Externally publishedYes

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quenching
photoluminescence
luminescence
electrical resistivity
defects
excitation
temperature

Keywords

  • Defects
  • Photoluminescence
  • Quenching

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Tunable thermal quenching of photoluminescence in GaN. / Reshchikov, M. A.; Mcnamara, J. D.; Shahedipour-Sandvik, F.

In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 11, No. 3-4, 01.01.2014, p. 389-392.

Research output: Contribution to journalArticle

Reshchikov, M. A. ; Mcnamara, J. D. ; Shahedipour-Sandvik, F. / Tunable thermal quenching of photoluminescence in GaN. In: Physica Status Solidi (C) Current Topics in Solid State Physics. 2014 ; Vol. 11, No. 3-4. pp. 389-392.
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