...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica, B. Condensed Matter >Electrical conduction and other related properties of silver ion doped LiF-V2O5-P2O5 glass system
【24h】

Electrical conduction and other related properties of silver ion doped LiF-V2O5-P2O5 glass system

机译：掺银离子的LiF-V2O5-P2O5玻璃体系的导电性及其他相关性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

LiF-V2O5-P2O5 glasses mixed with different concentrations of Ag2O (ranging from 0 to 1.5 mol%) were prepared. The DSC studies of these glasses indicated that the glass forming ability is the highest for the glass doped with 0.6 mol% of Ag2O. D.C. conductivity and dielectric properties over a range of temperature and also optical absorption, ESR, IR and magnetic susceptibility studies have been investigated. The optical absorption, ESR and magnetic susceptibility studies have indicated that the reduction ratio of V4+-V5+ ions is higher in the samples containing higher concentrations of Ag2O. The analysis of the results of d.c. conductivity has indicated that T > theta(D)/2, the small polaron hopping model seems to be fit and the conduction is adiabatic in nature. These results further indicated that there is a change over of conduction mechanism from electronic to ionic at about 0.6 mol% of Ag2O. The variations of dielectric constant and loss with temperature have been explained on the basis of space charge polarization. The low temperature part of a.c. conductivity is explained based on the quantum mechanical tunneling model.
机译：制备了混合有不同浓度的Ag2O（范围为0至1.5 mol％）的LiF-V2O5-P2O5玻璃。这些玻璃的DSC研究表明，对于掺有0.6mol％Ag 2 O的玻璃，玻璃形成能力最高。已经研究了在一定温度范围内的直流电导率和介电性能，并进行了光吸收，ESR，IR和磁化率研究。光吸收，ESR和磁化率研究表明，在含有较高浓度Ag2O的样品中，V4 + -V5 +离子的还原率较高。直流电结果的分析电导率表明T> theta（D）/ 2，小极化子跳跃模型似乎是合适的，并且传导本质上是绝热的。这些结果进一步表明，在约0.6mol％的Ag 2 O下，导电机理从电子转变为离子。已经基于空间电荷极化解释了介电常数和损耗随温度的变化。交流电的低温部分根据量子力学隧穿模型解释了电导率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号