Near-infrared emitting Cu–In–Se/ZnS core/shell quantum dots: aqueous synthesis and sulfur source effects

Yuxiu Jia; Hui Liu; Peng Cai; Xinran Liu; Luolisha Wang; Ling Ding; Guiyun Xu; Wei Wang; Mingxia Jiao; Xiliang Luo

doi:10.1039/D1CC01174J

Near-infrared emitting Cu–In–Se/ZnS core/shell quantum dots: aqueous synthesis and sulfur source effects†

Yuxiu Jia,^a Hui Liu,^a Peng Cai,^b Xinran Liu,^a Luolisha Wang,^a Ling Ding,^a Guiyun Xu,^a Wei Wang,

^a Mingxia Jiao

*^a and Xiliang Luo

*^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Optic–Electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Zhengzhou Road 53, Qingdao 266042, China
E-mail: mingxjiao@163.com, xiliangluo@qust.edu.cn

^b China Qingdao Bright Medical Manufacturing Co., Ltd, No. 1 Tiankang Road, Chengyang, Qingdao 266107, China

Abstract

The present study reports an aqueous synthesis approach towards Cu–In–Se/ZnS quantum dots with emission in the near-infrared spectral range. The photoluminescence of the dots can be effectively controlled by adjusting the sulfur source, to achieve increased quantum yields (four times higher) and red-shifted emission peaks (from 809 nm to 830 nm).

Chemical Communications

Near-infrared emitting Cu–In–Se/ZnS core/shell quantum dots: aqueous synthesis and sulfur source effects†

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Near-infrared emitting Cu–In–Se/ZnS core/shell quantum dots: aqueous synthesis and sulfur source effects

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