嵌埋式InP团簇光学吸收性质的研究  

OPTICAL ABSORPTION STUDY OF EMBEDDED InP CLUSTER

作　　者：赵子强[1] 韦伦存[1] 卢希庭[1] 

机构地区：[1]北京大学技术物理系

出　　处：《物理学报》1998年第2期214-218,共5页Acta Physica Sinica

基　　金：国家自然科学基金;核工业科学基金

摘　　要：利用双束共蒸发的方法制备ＩｎＰ∶ＣａＦ２复合膜，ＩｎＰ以团簇的形式嵌埋在绝缘介质ＣａＦ２中，团簇大小可通过改变携带气压和蒸发电流来控制．样品的ＴＥＭ结果表明：ＩｎＰ嵌埋团簇呈多晶结构，团簇尺寸１０ｎｍ左右．研究了该复合膜的线性光吸收性质，半导体ＩｎＰ团簇表现出明显的量子效应。Abstract By using co evaporating semiconductor and insulator media,InP∶CaF 2 films were prepared.Inp was embedded in CaF 2 in the form of clusters,whose size could be controlled by gas pressure and evaporating electric current.Transmission electron micrographs showed that the structure of InP cluster was polycrystalline.And the cluster size is about 10nm.We studied linear optical absorption of this kind of films.Quantum effect was observed clearly.With decreasing cluster size,the blue shift of the absorption edge was found.

关 键 词：半导体 嵌埋式 光学吸收 磷化铟 团簇 线性光 

分 类 号：TN304.23[电子电信—物理电子学] O472.3[理学—半导体物理]