Photoluminescence spectra of some ternary and quaternary chalcopyrite semiconductors

Autor:	Lawrence L. Kazmerski, K. J. Bachman, D. Albin, D. Dunlavy, F. Abou-Elfotouh, R. Menner
Rok vydání:	1988
Předmět:	Photoluminescence Materials science Inorganic chemistry Analytical chemistry Surfaces and Interfaces Electronic structure Condensed Matter Physics Crystallographic defect Spectral line Surfaces Coatings and Films Emission spectrum Ternary operation Luminescence Solid solution
Zdroj:	Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 6:1515-1518
ISSN:	1520-8559 0734-2101
DOI:	10.1116/1.575352
Popis:	Photoluminescence (PL) emission spectra of single crystals and thin films of CuGaxIn1−xSe2 compounds have been investigated at various measuring temperatures, and compared with the emission from CuGaSe2 and CuInSe2. The observed PL spectra consisted of two groups of emission lines: the near‐band‐gap group (A) and the lower energy group (B). It was found that the type of emission obtained is determined by the amount of stoichiometry and molecularity deviations. The PL data also showed a correspondence between the defect related transitions from the CuGaxIn1−xSe2 solid solution and CuGaSe2 for x 0. Interpretation of the PL spectra of Se‐deficient compounds with m>1 are rather complicated, and much work remains to be done before the defect chemistry of CuGaxIn1−xSe2 could be fully understood.
Databáze:	OpenAIRE
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