Direct synthesis of Zn1-x Cd (x) S (0 <= x <= 1) quantum dots in aqueous solution and application in biology

作者：Huang Keyang; He Shengtai^*; Liu Yulan; Zhang Yongxiao; Li Yanan; Hou Xiaoqin; Xu Hu; Sun Minglin; Wen Lingang

来源：Journal of Wuhan University of Technology-Materials Science Edition, 2013, 28(2): 265-268.

DOI：10.1007/s11595-013-0676-7

• Zn1-xCdxS
• quantum dot
• luminescence
• synthesis

A simple procedure was presented to directly synthesize Zn1-x Cd (x) S (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-x Cd (x) S 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.

• 出版日期2013-4
• 单位天津工业大学