Luminescent and photochemical processes in CdBr2 : AgCl crystals

Autor:	B. M. Kalivoshka, S. S. Novosad, I. S. Novosad
Rok vydání:	2011
Předmět:	Photochromism Materials science Solid-state physics Impurity Trapping Condensed Matter Physics Photochemistry Luminescence Chemical reaction Spectral composition Electronic Optical and Magnetic Materials
Zdroj:	Physics of the Solid State. 53:1626-1633
ISSN:	1090-6460 1063-7834
DOI:	10.1134/s1063783411080233
Popis:	This paper reports on the results of the investigation into the optical luminescence properties of photochromic crystals CdBr2 : AgCl grown by the Bridgman-Stockbarger method. It has been shown that, under X-ray, optical, and N2-laser excitations of the grown crystals, there occurs emission due to Ag+ impurities in addition to emission from centers characteristic of CdBr2. The photostimulated chemical reactions occurring in CdBr2 : AgCl lead to a weakening of the luminescence and to a change in its spectral composition. Models of photosensitive centers and centers of photochemical coloring have been proposed. The mechanisms of the photochromic effect have been considered. The nature of luminescent and trapping centers has been discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c4bae31a376d44f382524e04891d1db4 https://doi.org/10.1134/s1063783411080233 Zobrazit plný text záznamu Full text from SpringerLink