摘要
从理论和实验上研究了ZnSe/ZnS超晶格的激子能级,采用LCAO理论和Kronig-Penney模型计算了超晶格中电子、空穴和激子能带随垒宽的变化,测量了垒宽为5.8nm超晶格的低温吸收光谱和发光光谱,实验结果与理论一致。
The exciton levels in ZnSe/ZnS superlattice is studied theoretically and experimentally for the first time. The energy levels of electrons, holes and excitens in the superlattice as a function of barrier width are calculated with LCAO theory and Kronig-Penney model. The absorption and photoluminescence spectra of a sample with a barrier width of 5.8nm are measured at 77K. The experiment results are in good agreement with the theoretical calculations.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第2期95-100,共6页
Journal of Infrared and Millimeter Waves
关键词
硒化锌
硫化锌
激光
能级
超晶格
semiconductor superlattices, zinc selenide/zinc sulfide(ZnSe/ZnS), energy levels.
