OPTICAL INDUCED MODIFICATIONS IN THIN-FILMS OF FE-PVA

Authors
FILOTI G KUNCSER V FRANKE H KARDINAL T MANIVANNAN G
Citation
G. Filoti et al., OPTICAL INDUCED MODIFICATIONS IN THIN-FILMS OF FE-PVA, Journal of radioanalytical and nuclear chemistry, 190(2), 1995, pp. 315-320
Citations number
6
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
190
Issue
2
Year of publication
1995
Pages
315 - 320
Database
ISI
SICI code
0236-5731(1995)190:2<315:OIMITO>2.0.ZU;2-B
Abstract
The ferric chloride doped polymers change their refractive index under UV irradiation. The Fe:PVA is sensitive to ferric chloride concentrat ion, molecular weight of PVA, and recording beam power. By Mossbauer i nvestigations we tried to correlate the Fe2+ / Fe3+ ratio, as well as the temperature dependence of the energetical parameters with the assu med mechanisms which involve both the valence state of iron and a cros s-linking reaction of PVA matrix.