Temperature dependence of the optical gap in thin amorphous films of <script type="math/tex">As_{2}S_{3}</script>, <script type="math/tex">As_{2}Se_{3}</script> and other basic non-crystalline chalcogenides

Ticha, H.; Tichy, L.; Nagels, P.; Sleeckx, E.; Callaerts, R.

doi:10.1016/S0022-3697(99)00249-8

Title

Temperature dependence of the optical gap in thin amorphous films of $As_{2}S_{3}$ , $As_{2}Se_{3}$ and other basic non-crystalline chalcogenides

Author

Ticha, H.

Tichy, L.

Nagels, P.

Sleeckx, E.

Callaerts, R.

Abstract

Optical transmittivity in the UV-VIS region of thermally evaporated amorphous As2S3, and As2Se3 thin films was measured in the temperature region 15 K < T less than or equal to 300 K. The temperature dependence of the optical gap (E-g(T)) was found to be in agreement with Fan's one-phonon approximation or with Cody's one-oscillator model. The parameters necessary to describe the E-g(T) dependences for non-crystalline Se, As2S3, As2Se3, GeS2 and GeSe2, according to a simple linear relation, Varshni's relation, and Fan's or Cody's model are summarized. (C) 2000 Elsevier Science Ltd. All rights reserved.

Language

English

Source (journal)

The journal of physics and chemistry of solids. - New York, N.Y.

Publication

New York, N.Y. : 2000

ISSN

0022-3697

DOI

10.1016/S0022-3697(99)00249-8

Volume/pages

61 :4 (2000) , p. 545-550

ISI

000085842100008

Full text (Publisher's DOI)

https://doi.org/10.1016/S0022-3697(99)00249-8

Full text (publisher's version - intranet only)

https://repository.uantwerpen.be/docman/iruaauth/cb4c18/43d4764.pdf

Faculty/Department				Faculty of Business and Economics

Research group

Publication type				A1 Journal article

Subject				Physics Chemistry

Affiliation				Publications with a UAntwerp address

Web of Science

View record in Web of Science®

View citing articles in Web of Science®

Identifier

c:irua:102878

Creation

03.01.2013

Last edited

25.12.2024

To cite this reference

https://hdl.handle.net/10067/1028780151162165141