非均匀寿命分布电导调制基区中非平衡载流子的WKB解

A WKB solution of excess carriers in conductivity modulation base with non-uniform lifetime

针对非均匀寿命分布情况,建立了描述电导调制基区的双极输运方程,并利用Liouville_Green变换获得该方程在不同边界条件下的WKB解.其结果可用于局域寿命控制下电导调制器件的建模分析.

Base on the establishment of an ambipolar transport equation of conductivity modulation base with non-uniform lifetime, WKB solutions of excess carrier profiles under different boundary conditions have been obtained by using Liouville-Green transform. The results can be used in modeling of conductivity modulation power devices under localized lifetime control.