Optical properties of Hg1-xCdxTe/CdTe epitaxial films with graded band gap

Autor:	Fiodor F. Sizov, Vladimir V. Tetyorkin, Z. F. Ivasiv, V. A. Petryakov
Rok vydání:	1999
Předmět:	business.industry Chemistry Band gap Optical engineering Analytical chemistry Photodetector Photon energy Omega WKB approximation Cadmium telluride photovoltaics Condensed Matter::Materials Science chemistry.chemical_compound Optoelectronics Mercury cadmium telluride business
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.368334
Popis:	The IR transmission spectra of HgCdTe epitaxial films grown on CdTe substrates were measured. The films investigated contain an exponential composition gradient. Optical density D vs the photon energy (omega) are analyzed both theoretically and experimentally. Theoretical calculations of D((omega) ) spectra were performed in the framework of the WKB approximation. The composition profile has been obtained from the fitting procedure. In order to reduce the total amount of the fitting parameters as well as to improve the accuracy of this procedure the differentiation of the D((omega) ) curves were performed.© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Databáze:	OpenAIRE
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