MECHANISM OF PHOTOCHROMISM IN NANOMETER-SIZE SILVER-HALIDE PARTICLES

Authors
GOURIER D CAURANT D
Citation
D. Gourier et D. Caurant, MECHANISM OF PHOTOCHROMISM IN NANOMETER-SIZE SILVER-HALIDE PARTICLES, Annales de chimie, 18(5-6), 1993, pp. 319-328
Citations number
12
Categorie Soggetti
Chemistry,"Material Science
Journal title
Annales de chimie → ACNP
ISSN journal
01519107
Volume
18
Issue
5-6
Year of publication
1993
Pages
319 - 328
Database
ISI
SICI code
0151-9107(1993)18:5-6<319:MOPINS>2.0.ZU;2-T
Abstract
This paper deals with some properties of silver halide AgClxBr1-x phot ochromic glasses. Nanometer size copper doped silver halide particles (50-200 angstrom) obtained as precipitates in a glassy matrix have bee n studied during darkening and thermal bleaching by Electron Paramagne tic Resonance (EPR). Structural mechanisms are proposed for these two processes. Analogies and differences between photochromic and photogra phic processes are also discussed.