Numéro
J. Phys. IV France
Volume 01, Numéro C5, Décembre 1991
COLLOQUE WEYL VII
International Conference on METALS IN SOLUTION
Page(s) C5-297 - C5-301
DOI http://dx.doi.org/10.1051/jp4:1991534
COLLOQUE WEYL VII
International Conference on METALS IN SOLUTION

J. Phys. IV France 01 (1991) C5-297-C5-301

DOI: 10.1051/jp4:1991534

PHOTOLYSIS OF SOLID Na+C222.Na- BY AN EXCIMER LASER PULSE AT 308 nm

M.G. DE BACKER, J.F. LACARRIERE and F.X. SAUVAGE

Laboratoire de Chimie-Physique, HEI, 13 rue de Toul, F-59046 Lille cedex, France


Abstract
Illumination of thin dry films of Na+C222.Na- by short pulses of UV light at 308 nm produces modifications of the optical absorption spectrum similar to those obtained by visible light irradiation. These effects are interpreted in terms of transfer and recombination from the conduction band of the sodide. The quasi reversibility observed in the case of UV irradiation indicates that the process does not involve the 3s3p excited state. Deconvolution of the optical spectrum observed before and after the flash provides informations on the number of absorbing species. Preliminary results obtained with a variety of other sodides are shortly discussed.



© EDP Sciences 1991