Title
|
|
|
|
Temperature dependence of the optical gap in thin amorphous films of , and other basic non-crystalline chalcogenides
| |
Author
|
|
|
|
| |
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
| |
Volume/pages
|
|
|
|
61
:4
(2000)
, p. 545-550
| |
ISI
|
|
|
|
000085842100008
| |
Full text (Publisher's DOI)
|
|
|
|
| |
Full text (publisher's version - intranet only)
|
|
|
|
| |
|