摘要
本文通过不同激发光强度下的光致发光实验，把Ｚｎ０．６７Ｃｄ０．３３Ｔｅ／ＺｎＴｅ超晶格（ＳＬｓ）样品的两个发光谱峰分别归结为与激子有关的和导带电子到受主的辐射复合过程．为进一步了解样品的发光特性，做了不同温度下的光致发光实验，得到了两个谱峰在高温区的激活能，即：高能峰为１２７ｍｅＶ，低能峰为１３２ｍｅＶ．
he two peaks of PL spectrum of Zn0.67Cd0.33Te/ZnTe superlattices are observed at 77 K and contributed to exciton related and free-to-bound radiative recombination transition, respectively. In order to get further information about the characterization of this sample, experiments of PL under different temperature have been developed. The activation energy of the two peaks in high temperature region has been obtained to be 127 meV and 132 meV, respectively.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1996年第3期210-214,共5页
Chinese Journal of Luminescence
基金
国家攀登计划项目
国家自然科学基金
