DYNAMIC INTERFERENCE GRATING NEW TECHNIQUE FOR THE STUDY OF NONCRYSTALLINE FILMS

Authors
KOSAREV AI TROFIMOV GS
Citation
Ai. Kosarev et Gs. Trofimov, DYNAMIC INTERFERENCE GRATING NEW TECHNIQUE FOR THE STUDY OF NONCRYSTALLINE FILMS, International journal of electronics, 76(6), 1994, pp. 1023-1028
Citations number
4
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
International journal of electronics → ACNP
ISSN journal
00207217
Volume
76
Issue
6
Year of publication
1994
Pages
1023 - 1028
Database
ISI
SICI code
0020-7217(1994)76:6<1023:DIGNTF>2.0.ZU;2-V
Abstract
The results are presented of a dynamic interference grating (DIG) phot ocurrent study in a-Si:H films. A model and theoretical analysis are g iven. DIG photocurrent as a function of both temporal and spatial freq uency I(omega)(omega)), I(omega)(K) have been studied. The experimenta l curves are in good agreement with the calculated ones. They are used to determine the magnitudes of the Maxwell relaxation times and diffu sion lengths for both electrons and holes. The effect of light intensi ty on the photocurrent is shown to be due to quadratic recombination.