• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental and Theoretical Physics >Kinetics of tunneling electron transfer between antimorphous defects in optical crystals with mobile cations
【24h】

Kinetics of tunneling electron transfer between antimorphous defects in optical crystals with mobile cations

机译：具有可移动阳离子的光学晶体中反晶缺陷之间隧穿电子转移的动力学

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

The experimental data on the transient optical absorption of wide-band-gap optical crystals of lithium borates Li _2B _4O _7, LiB _3O _5, and Li _6Gd(BO _3) _3 and potassium (KH _2PO _4 (KDP)) and ammonium (NH _4H _2PO _4 (ADP)) dihydrogen phosphates in the visible and ultraviolet spectral regions are analyzed using the theory of diffusion-controlled tunneling recombination. A nanosecond pulsed radiation action on these crystals is shown to form defect pairs, such as polaron-type hole centers and electron centers based on interstitial cations. The relaxation kinetics of these centers over a wide time range of 10 ~(-8)-10 s is described by a proposed model of tunneling electron transfer between antimorphous defects in the cation sublattice under the thermally stimulated mobility of recombination partners. The numerical values of the kinetic parameters are determined and the time dependences of the reaction rate constants are calculated for all crystals under study. As a result, the dynamics of change in the optical properties of these crystals under a pulsed radiation action can be simulated.
机译：硼酸锂Li _2B _4O _7，LiB _3O _5和Li _6Gd（BO _3）_3和钾（KH _2PO _4（KDP））和铵（NH）的宽带隙光学晶体的瞬态光吸收的实验数据使用扩散控制隧穿重组理论分析了可见和紫外光谱区域中的_4H _2PO _4（ADP））磷酸二氢盐。对这些晶体的纳秒脉冲辐射作用显示为形成缺陷对，例如极化子型空穴中心和基于间隙阳离子的电子中心。这些中心的弛豫动力学在10〜（-8）-10 s的较宽时间范围内，是通过在重组配偶体的热刺激迁移率下阳离子亚晶格的反型缺陷之间的隧穿电子转移隧穿模型来描述的。确定动力学参数的数值，并计算所有研究晶体的反应速率常数与时间的关系。结果，可以模拟在脉冲辐射作用下这些晶体的光学性质变化的动力学。

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