CdSxSe1-x NANOCRYSTALLITES : NEW MATERIALS FOR NON LINEAR OPTICS

B. CHAMPAGNON; M. FERRARI; B. ANDRIANASOLO; E. DUVAL

doi:doi:10.1051/jp4:19917116

Numéro		J. Phys. IV France Volume 01, Numéro C7, Décembre 1991 2nd International Conference Laser M2P


Page(s)		C7-435 - C7-437
DOI		https://doi.org/10.1051/jp4:19917116

2nd International Conference
Laser M2P

J. Phys. IV France 01 (1991) C7-435-C7-437
DOI: 10.1051/jp4:19917116

CdS_xSe_1-x NANOCRYSTALLITES : NEW MATERIALS FOR NON LINEAR OPTICS

B. CHAMPAGNON¹, M. FERRARI², B. ANDRIANASOLO¹ and E. DUVAL¹

¹ Laboratoire de Physico-Chimie des Matériaux Luminescents, Université Lyon I, F-69622 Villeurbanne, France
² Centro di Fisica degli Stati Aggregati ed impianco, ionico, C.N.R., I-38050 Povo-Trento, Italy

Abstract
Nanocrystallites of CdS_xSe_1-x semiconductors in glasses have non-linear properties which are function of the exciton confinement due to their sizes. The determination of the diameter of these nanocrystallites, critical to improve the properties of the systems, is determined by Raman scattering close to the laser line : the Low Frequency Inelastic Scattering (LOFIS). Possibility to determine the size distribution by LOFIS is demonstrated and effects of thermal treatments on the sizes and the size distribution of is discussed.