硅酸盐学报

一步法水相制备Cu–In–Zn–S量子点及其荧光性能

作者：徐彦乔1 陈婷1 2 王连军2 3 江莞2 3 江伟辉1 2 谢志翔1

单位：(1. 景德镇陶瓷大学材料科学与工程学院江西景德镇 333001 2. 国家日用及建筑陶瓷工程技术研究中心江西景德镇 333001 3. 东华大学材料科学与工程学院上海 201620)

关键词：量子点水相制备荧光性能铜铟锌硫

分类号：O482.31

出版年,卷(期):页码：2020,48(1):0-0

DOI：

摘要：

采用简单的一步法制备了水溶性Cu–In–Zn–S (CIZS)四元量子点，利用X射线衍射仪、透射电子显微镜和荧光光谱仪等测试手段研究了反应温度、阳离子浓度和前驱体溶液pH值对样品的物相组成、显微形貌以及荧光性能的影响规律。结果表明：随着反应温度的升高，量子点的结晶度逐渐提高，荧光强度显著增强，当反应温度为95 ℃时，荧光强度达到了最高值；随着阳离子浓度的逐渐增大，量子点的粒径逐渐减小，导致其发光峰位由634 nm蓝移至617 nm，当阳离子浓度为1.5 mmol/L时，量子点的荧光强度最高。此外，当溶液pH值=5.0时，配体对量子点的表面钝化效果最佳，荧光强度达到最高值。红外光谱表明，量子点表面存在多种功能基团，赋予了量子点优异的水溶性，因此在生物成像领域具有广阔的应用前景。

基金项目：

国家自然科学基金(51402135，51432004，51774096)；江西省杰出青年人才资助计划项目(20171BCB23071)；江西省自然科学基金(20181BAB216009，20171BAB216008)；江西省教育厅基金(GJJ180708，GJJ180707)项目。

作者简介：

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