外电场下应变量子阱中电子与空穴的本征态

郭海峰; 哈斯花; 朱俊

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外电场下应变量子阱中电子与空穴的本征态

论文 | 更新时间：2020-08-12

- 外电场下应变量子阱中电子与空穴的本征态
- Eigen-states of Electron and Hole in Strained Quantum Well under External Electric Field
- 发光学报 2010年31卷第6期页码：870-876
- 作者机构：
  
  1. 内蒙古工业大学理学院物理系
  2. 内蒙古大学物理科学与技术学院
- 作者简介：
- 基金信息：
  
  内蒙古自治区自然科学博士基金(2010BS0102)();内蒙古工业大学科学研究项目(ZD201014)资助项目()
- DOI：
  中图分类号： O471.3
- 收稿：2009-12-14，
  
  修回：2010-3-11，
  
  网络首发：2010-11-22，
  
  纸质出版：2010-11-22
- 稿件说明：
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郭海峰, 哈斯花, 朱俊. 外电场下应变量子阱中电子与空穴的本征态[J]. 发光学报, 2010,31(6): 870-876

GUO Hai-feng, HA Si-hua, ZHU Jun. Eigen-states of Electron and Hole in Strained Quantum Well under External Electric Field[J]. Chinese Journal of Luminescence, 2010,31(6): 870-876
郭海峰, 哈斯花, 朱俊. 外电场下应变量子阱中电子与空穴的本征态[J]. 发光学报, 2010,31(6): 870-876 DOI：

GUO Hai-feng, HA Si-hua, ZHU Jun. Eigen-states of Electron and Hole in Strained Quantum Well under External Electric Field[J]. Chinese Journal of Luminescence, 2010,31(6): 870-876 DOI：

摘要

考虑自发与压电极化引起的内建电场

自由电子-空穴气屏蔽效应和外加电场

基于常微分数值计算

自洽求解电子与空穴的薛定谔方程和泊松方程以获得基态能级。以典型的GaN/Al

N纤锌矿氮化物应变量子阱为例

通过数值求解

得到电子与空穴的本征基态能和相应本征波函数。计算结果表明:沿量子阱生长方向所施加的外加电场将抵消阱中内建电场的作用

阱结构的弯曲程度略显平缓

使电子(空穴)本征波函数逆(顺)着外电场方向移动

且均向阱中心移动

波峰峰值增加

隧穿几率减小;在固定外电场情况下

电子与空穴基态能级随阱宽的增加而减小

随掺杂组分的增加而增加

表明外加电场对内建电场有所削弱以及量子限制作用对电子(空穴)基态能有显著的影响。

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