DSC, ESR and optical absorption studies of Cu2+ ion doped in boro cadmium tellurite glasses
DSC, ESR and optical absorption studies of Cu2+ ion doped in boro cadmium tellurite glasses
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DOI：
10.1016/j.jallcom.2012.02.142
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发表时间：
2012-06
影响因子：
6.2
通讯作者：
P. Pavani;M. Prasad;V. C. Mouli
中科院分区：
文献类型：
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作者：
P. Pavani;M. Prasad;V. C. Mouli
对50种含Cu ~（2+）自旋探针的B_2O_3-（50−x）CdO-xTeO_2玻璃进行了物理、光学吸收、ESR和DSC研究。密度测量采用阿基米德原理。玻璃化转变温度的变化进行了讨论的物理参数。ESR结果表明，g>g，表明Cu 2+离子处于四面体畸变八面体位置，其基态为[式：见正文]。在BCT玻璃体系中，随着CdO浓度的增加，g_（max）、g_（max）和A_（max）值都有很大的变化。光吸收光谱结果表明，Cu ~（2+）的吸收峰是组分的函数。当x= 30 mol.%时，Cu ~（2+）的最小吸收峰在776 nm处CdO含量。在物理，光学和键合参数的变化清楚地表明在本玻璃系统中的结构变化与不同的CdO含量。
Physical, optical absorption, ESR and DSC studies on 50 B2O3–(50−x) CdO–xTeO2glasses containing Cu2+spin probe have been carried out. Density measurement is carried out by Archimedes principle. Variation in glass transition temperature is discussed in terms of physical parameters. ESR results show that g∥>g⊥indicating that the Cu2+ions is in tetragonal distorted octahedral site and its ground state is [Formula: see text] . There are considerable changes in g∥, g⊥and A∥values with increasing the concentration of CdO in BCT glass systems. The optical absorption spectra results show that the absorption peak of Cu2+is a function of composition. The observed optical absorption peak of Cu2+has been found to be minimum at 776nm for x=30mol.% of CdO content. The variations in the physical, optical and bonding parameters clearly indicate the structural changes in the present glass system with varied CdO content.