OPTICAL-PROPERTIES AND NATURE OF COORDINATION OF CU+ IONS IN CALCIUM METAPHOSPHATE GLASS

被引：32

作者：

DEBNATH, R ^{[1
]}

CHAUDHURY, J ^{[1
]}

BERA, SC ^{[1
]}

机构：

[1] JADAVPUR UNIV,CALCUTTA 700032,W BENGAL,INDIA

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1990年 / 157卷 / 02期

关键词：

D O I：

10.1002/pssb.2221570225

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Absorption, emission, and excitation spectra of copper(I) ions in calcium metaphosphate glass are investigated. Analysis of the absorption spectrum in the light of ligand field theory reveals that the oxygen coordination surrounding the ion in glass is grossly a trigonally distorted octahedron. A chemical model for the copper(I) ion site in glass is proposed and the mode of distortions that brings about strong trigonal fields at the central ion is discussed. The lowest triplet (3Eg) in the system is identified from emission and lifetime measurements. The observed duality of the triplet emission and its excitation dependence are ascribed to the existence of two relatively predominant slightly different copper(I) sites under the same gross coordination field structure of the glass. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：723 / 733

页数：11

共 25 条

[1] LUMINESCENCE OF CU+-BETA''-ALUMINA [J].