LIGHT-INTENSITY DEPENDENCE OF THE PHOTOCONDUCTIVITY IN C-60 FILMS

Authors
HAMED A ESCALANTE R HOR PH
Citation
A. Hamed et al., LIGHT-INTENSITY DEPENDENCE OF THE PHOTOCONDUCTIVITY IN C-60 FILMS, Physical review. B, Condensed matter, 50(11), 1994, pp. 8050-8053
Citations number
31
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
11
Year of publication
1994
Pages
8050 - 8053
Database
ISI
SICI code
0163-1829(1994)50:11<8050:LDOTPI>2.0.ZU;2-W
Abstract
We have measured the temperature dependence of the coefficients b and gamma in the expression sigma(p) = bF(gamma), where F is the light int ensity and sigma(p) is the photoconductivity of C-60 films. Interpreta tion of the results in terms of an exponential density of gap states, assumed to be generated by disorder in the electronic potential, indic ates that this disorder decreases with decreasing temperature below 26 0 K.