DSC, ESR and optical absorption studies of Cu²⁺ ion doped in boro cadmium tellurite glasses

详细信息	查看全文 | 推荐本文 |

• 作者：P. Gayathri Pavani ; ^{gayathri.potturi@gmail.com} ; M. Prasad ; V. Chandra Mouli
• 关键词：Amorphous materials ; Differential scanning calorimetry (DSC) ; Glass transitions ; Electron resonance
• 刊名：Journal of Alloys and Compounds
• 出版年：2012
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：25 June, 2012
• 卷：527
• 期：Complete
• 页码：5-9
• 文件大小：645 K

摘要

Physical, optical absorption, ESR and DSC studies on 50 B₂O₃-(50 鈭?#xA0;x) CdO-xTeO₂ glasses 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_{鈭?/sub> > g鈯?/sub> indicating that the Cu²⁺ ions is in tetragonal distorted octahedral site and its ground state is . There are considerable changes in g鈭?/sub>, g鈯?/sub> and A鈭?/sub> 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 776 nm for x = 30 mol.%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.}