大学物理 ›› 2023, Vol. 42 ›› Issue (10): 10-.doi: 10.16854/j.cnki.1000-0712.220516

• 教学研究 • 上一篇    下一篇

二维三角形受限势量子结构的电子能谱与波函数

张立,卢飞跃   

  1. 广州番禺职业技术学院 智能制造学院,广东广州511483
  • 收稿日期:2022-10-17 修回日期:2023-01-07 出版日期:2023-11-01 发布日期:2023-11-06
  • 作者简介:张立(1976—),男,湖北荆州人,广州番禺职业技术学院教授,博士,主要从事大学物理教学和低维半导体结构的光电子特性研究工作.Email:zhangli-gz@263.net
  • 基金资助:
    国家自然科学基金(60906042),广东省高校重点领域专项(2022ZDZX1066),广东省高职院校产教融合创新平台项目(2022CJPT015),广东省高校创新团队项目(2024),广州市基础与应用基础研究项目(202102080359)资助

Electronic energy spectra and wave-functions of 2D  triangular quantum structures

ZHANG Li, LU Fei-yue   

  1. School of Intelligent Manufacturing, Guangzhou Panyu Polytechnic, Panyu, Guangdong 511483, China
  • Received:2022-10-17 Revised:2023-01-07 Online:2023-11-01 Published:2023-11-06

摘要: 基于一种非分离变量方法,讨论了三种二维三角形量子结构中的电子态,包括半等边三角形、等腰直角三角形与等边三角形,得到了精确解析的电子波函数与能级方程.以AlN半导体材料参数进行了数值计算,并讨论了这些三角形量子结构的能级结构与波函数分布特点.

关键词: 三角形受限势, 电子态, 非分离变量方法

Abstract: Using a nonseparable variable approach, the electronic energy spectra and wave-functions of 2D triangular quantum structures, including the hemi-equilateral triangle, the isosceles triangle, and the equilateral triangle are deduced and analyzed. The exact and analytical electronic states and energy-level equations in the three types of triangular structures are obtained. Numerical calculations are performed based on the material parameter of typical AlN semiconductor. The energy-level structures and wave-function distributions of electronic states are discussed in detail. The result reveals that the symmetry of the triangular quantum structure plays an important role in the energy-level structures and wave-function distributions of the triangular quantum structures

Key words: triangular confined potential, electronic states, nonseparable variable approach