Theoretical Study for Thermal/Electric Field Poling of Fused Silica
Theoretical Study for Thermal/Electric Field Poling of Fused Silica
复制标题
熔融石英热/电场极化的理论研究
DOI：
10.1143/jjap.40.4069
复制
发表时间：
2001
影响因子：
1.5
通讯作者：
Mingde Zhang
中科院分区：
文献类型：
--
作者：
Xueming Liu;Mingde Zhang
本研究首次使用多载流子模型分析了熔融石英中的热/电场极化过程。耗尽区可以由带正电层、电离层和负耗尽层组成，并导出并获得耗尽区中的电荷密度分布。计算结果表明，整个耗尽区的电荷密度分布呈准阶梯分布，正电荷区和负电荷耗尽层均具有近似均匀的分布。获得了耗尽区宽度和电场分布的表达式。理论结果表明，峰值电场位于耗尽区内部，内部电场约为109 V/m，比施加的初始极化场高出两个数量级。
Using the multiple-carrier model, the process of thermal/electric-field poling in fused silica is analyzed in this study for the first time. The depletion region may be composed of a positively charged layer, an ionosphere layer and a negative depletion layer, and the charge density distribution in the depletion region is derived and obtained. The calculation results show that the distribution of the charge density in the entire depletion region has a quasi-step profile, and both the positively charged region and the negative depletion layer have an approximately uniform distribution. Expressions for the depletion width and the electric field distribution in the depletion region are obtained. Theoretical results show that the peak electric field is located in the interior of the depletion region, and the internal electric field is about 109 V/m, up to two orders of magnitude higher than the applied initial poling field.