PHOTOCURRENTS IN SNO2 FILMS DUE TO DESORPTION OF OXYGEN

Authors
PRADO F MEYER G SAURA J
Citation
F. Prado et al., PHOTOCURRENTS IN SNO2 FILMS DUE TO DESORPTION OF OXYGEN, Journal of physics. Condensed matter, 5, 1993, pp. 351-352
Citations number
4
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
5
Year of publication
1993
Supplement
33A
Pages
351 - 352
Database
ISI
SICI code
0953-8984(1993)5:<351:PISFDT>2.0.ZU;2-#
Abstract
Large changes of conductivity occur in annealed pyrolytic SnO2 films w hen irradiated with ultraviolet radiation under ambient conditions. We have found that this effect is due to chemisorption-photodesorption o f oxygen following an Elovich-type kinetics, and that chemisorption pr oceeds by the transfer of electrons through a potential barrier.