界面电子受体分子对硫化镉纳米微粒光学性质的影响  

Effects of Interfacial Electron Acceptor Molecules on the Optical Properties of CdS Nanoparticulates

作　　者：邹炳锁[1] 汤国庆[1] 尚小明[1] 王斌[1] 张桂兰[1] 陈文驹[1] 

机构地区：[1]南开大学现代光学研究所,天津300071

出　　处：《高等学校化学学报》1993年第9期1302-1304,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：纳米微粒的光学性质是固体微结构、微器件研究中的重要方向。纳米微粒可用于光信息存储、转换及光开关等,影响其光学性质的因素有尺寸、结构、组成及其周围的化学环境等。在结构和成分不变时微粒的光学吸收带边(E_g)可由下式描述:In this paper, we reported the variances of optical properties of CdS nanoparticulates in reverse micelle as the size and interfacial chemical condition were changed. TCNQ(7,7,8,8-tetracyanoquinodimethane) molecules on the surface of CdS nanoparticulates could induce the acceptor bound excitonic states, increasing the binding energy between electron and hole, which was in relation to the red-shift of optical absorption band edge and the well-discrete optical absorption and photoluminescence structures. This composite system would find applications in optical memory, optical nonlinearity, electron localization and so on.

关 键 词：硫化镉 纳米微粒 光学性质 

分 类 号：O614.242[理学—无机化学]