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Relationship between the optical gap and the optical-absorption tail breadth in amorphous GaAs.
- Source :
-
Journal of Applied Physics . 12/15/2004, Vol. 96 Issue 12, p7052-7059. 8p. 1 Chart, 4 Graphs. - Publication Year :
- 2004
-
Abstract
- We study the relationship between the optical gap and the optical-absorption tail breadth for the case of amorphous gallium arsenide (a-GaAs). In particular, we analyze the optical-absorption spectra corresponding to some recently prepared a-GaAs samples. The optical gap and the optical-absorption tail breadth corresponding to each sample is determined. Plotting the optical gap as a function of the corresponding optical-absorption tail breadth, we note that a trend, similar to that found for the cases of the hydrogenated amorphous silicon and hydrogenated amorphous germanium, is also found for the case of a-GaAs. The impact of alloying on the optical-absorption spectrum associated with a-GaAs is also briefly examined. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 96
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 15244335
- Full Text :
- https://doi.org/10.1063/1.1797541