Direct Synthesis of Zn_(1-x)Cd_xS (0≤x≤1) Quantum Dots in Aqueous Solution and Application in Biology  

作　　者：黄克阳 何声太 LIU Yulan ZHANG Yongxiao LI Yanan HOU Xiaoqin XU Hu SUN Minglin WEN Lingang 

机构地区：[1]School of Materials Science and Engineering, Tianjin Polytechnic University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2013年第2期265-268,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Tianjin Research Program of Applied Basic&Cuttingedge Technologies(No.09JCYBJC27200);the National Key Basic Research Program (973 Program) of China(No.2012CB933301)

摘　　要：A simple procedure was presented to directly synthesize Zn1_xCdxS （0 ≤x≤1） quantum dots （QDs） in aqueous solution. QDs＇ structures and properties were characterized by TEM （transmission electron microscopy）, XRD （X-ray diffraction） and fluorescence microscopy. For those as-synthesized Zn1_xCdxS QDs, when the molar ratio between Zn and Cd changed from 1 to 0, its photoluminescence （PL） emission peak shifted from 430 nm to 675 nm. PL emission quantum efficiency was up to 15%. The experiment results demonstrated that those alloyed QDs showed a good biocompatibility and could be used as labelling materials in cell biology.A simple procedure was presented to directly synthesize Zn1_xCdxS （0 ≤x≤1） quantum dots （QDs） in aqueous solution. QDs＇ structures and properties were characterized by TEM （transmission electron microscopy）, XRD （X-ray diffraction） and fluorescence microscopy. For those as-synthesized Zn1_xCdxS QDs, when the molar ratio between Zn and Cd changed from 1 to 0, its photoluminescence （PL） emission peak shifted from 430 nm to 675 nm. PL emission quantum efficiency was up to 15%. The experiment results demonstrated that those alloyed QDs showed a good biocompatibility and could be used as labelling materials in cell biology.

关 键 词：Zn1_xCdxS quantum dot luminescence synthesis 

分 类 号：O621.3[理学—有机化学]