摘要
建立了由两种不同材料构成的沿轴向的线状超晶格体系的薛定谔方程,并对(HgS/CdS)nHgS线状超晶格作具体计算,探讨了势阱和势垒宽度对电子能谱的影响。结果表明:沿轴向方向的线状超晶格系统的电子能谱存在能带结构,低能带的宽度要比高能带的宽度小;势阱宽度增大和势垒宽度减小会使带底的位置降低而带宽增大;圆柱半径在40 左右时,第一禁带宽度最大。
The schrdinger equation of the linear superlattice systems toward axial line composed of two kinds of materials has been built, and it has been solved. The potential and potential barrier width on the influnce of electronic spectrum is researched. It shows that there are energyband structures in linear superlattice system toward axial iine. The lower energyband width is smaller than higher energyband width does. The increase of potential well width and the decrease of the potential barrier will make the energy band bottom lower and the energy band width increase. The first order forbidden energyband width is the biggest when cylindrical radius is about 40 .
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第11期80-82,86,共4页
Journal of Chongqing University
基金
国家自然科学基金资助课题(10147207)
