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

被引：0

作者：

Huang Keyang ^{[1
]}

He Shengtai ^{[1
]}

Liu Yulan ^{[1
]}

Zhang Yongxiao ^{[1
]}

Li Yanan ^{[1
]}

Hou Xiaoqin ^{[1
]}

Xu Hu ^{[1
]}

Sun Minglin ^{[1
]}

Wen Lingang ^{[1
]}

机构：

[1] Tianjin Polytech Univ, Sch Mat Sci & Engn, Tianjin 300387, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2013年 / 28卷 / 02期

关键词：

Zn1-xCdxS; quantum dot; luminescence; synthesis; LIVE CELLS; NANOCRYSTALS; WATER; PHOTOLUMINESCENCE;

D O I：

10.1007/s11595-013-0676-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：265 / 268

页数：4

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