超晶格电子垂直输运的激子势垒穿透  

The Exciton Barrier Penetration of Electronic Vertical Transport in Superlattice

作　　者：李秀平[1] 陈琼[1] 杨杰[1] 王善进[1] 罗诗裕[1] 

机构地区：[1]东莞理工学院电子工程学院.广东东莞523808

出　　处：《半导体光电》2014年第1期53-56,共4页Semiconductor Optoelectronics

摘　　要：激子的势垒穿透在超晶格的光电性质研究中有着十分重要的意义。文章在Fowler-Nordheim理论基础上,引入权重因子描述了激子库仑场和外场之间的竞争,并对不同的权重因子进行了仿真分析。结果表明,激子效应使势垒高度降低。用爱里函数和椭圆积分严格地给出了激子的势垒穿透几率,为超晶格光电性质和垂直输运提供了基础分析。On the basis of the Fowler-Nordheim theory, the weighting factor was introduced to describe the competition between the exciton Coulomb field and the external field, and the eases with variable weighting factors were numerically analyzed. The results show that the barrier is lowed by the exciton effect. In the paper, the barrier penetration probability of the exciton was strictly given by Airy functions and elliptic integrals.

关 键 词：激子 超晶格 势垒穿透 椭圆积分 

分 类 号：O413.2[理学—理论物理]