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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：中国科学院兰州化学物理研究所
学位：博士
所在单位：环境学院
办公地点：环境楼 B415
联系方式：Tel: 0411-84706658
电子邮箱：xyli@dlut.edu.cn
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A novel approach to synthesize ultrasmall Cu doped Zn-In-Se nanocrystal emitters in a colloidal system
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论文类型：期刊论文
发表时间：2014-03-21
发表刊物：NANOSCALE
收录刊物：SCIE、EI、PubMed、Scopus
卷号：6
期号：6
页面范围：3403-3409
ISSN号：2040-3364
摘要：A facile phosphine-free approach is presented to prepare Cu doped ternary Zn-In-Se nanocrystals with high performance photoluminescence. By doping during nucleation stage, Cu dopant serving as a dominative emission centre was introduced into a weak fluorescence ternary system to modify the emission path. As a result of varying the ratios of zinc to indium, emission of the products is tunable ranging from 620 to 545 nm and a photoluminescence quantum yield of up to 20%. Meanwhile, a large Stokes shift of 467 meV is achieved.