Aqueous Phase Synthesis and Fluorescence Properties of Inverted Core/Shell ZnSe/CdSe Nanocrystals

作     者：ZHOU Jing, JIANG Luwen, GUO Wen, JIANG Hai, HAO Zhonghua School of Physics and Technology, Wuhan University/Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Wuhan 430072, Hubei, China ZHOU Jing, JIANG Luwen, GUO Wen, JIANG Hai, HAO Zhonghua School of Physics and Technology, Wuhan University/Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Wuhan 430072, Hubei, China

作者机构：School of Physics and Technology Wuhan University/Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education Wuhan Hubei China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2010年第15卷第4期

页      面：320-324页

学科分类：07[理学] 08[工学] 

基　　金：Supported by the National Natural Science Foundation of China (10874134) the Specialized Research Fund for the Doctoral Program of Higher Education of China (20060486031) 

主　　题：aqueous phase synthesis nanocrystal ZnSe/CdSe semiconductor 

摘      要：We report a facile aqueous phase synthesis for prepar-ing water-soluble inverted core/shell ZnSe/CdSe semiconductor nanocrystals. The samples were characterized by X-ray diffraction (XRD),transmission electron microscopy (TEM),and their optical properties were investigated by using UV-vis-NIR spectropho-tometer and fluorescence spectrophotometer. The results indicate that the synthesized ZnSe/CdSe nanocrystals are inverted core/shell structure with diameter of about 5 nm. Furthermore,their absorption band-edge is red-shifted with the growth of CdSe shell; correspondingly,their emission wavelength can be tuned from 460 nm to 604 nm.