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Preparation and Fluorescence Property of Water-dispersible ZnSe:Co/ZnSe/ZnS Quantum Dots

Chunhong QiuFenghua HuangTao HuangXiuTing FangMeijing Huang

College of Chemistry and Materials Science, Fujian Normal University

摘要:In this paper, water-dispersible, L-cysteine-capped Co-doped ZnSe/ZnSe/ZnS core/shell/shell quantum dots are prepared via a simple epitaxial growth approach by depositing ZnS on the superficial layer of the Co-doped ZnSe/ZnSe core/shell QDs. The crystal structure as well as fluorescence performance of the as-prepared Co-doped core/shell/shell QDs have been testified through X-ray power diffraction, Infrared spectrum, Ultraviolet-visible spectrum and photoluminescence spectrum. The results exhibit that the Co-doped ZnSe/ZnSe/ZnS core/shell/shell quantum dots have a cubic sphalerite crystal and the size about 3.4 nm. After coating ZnS shell with appropriate thickness around the Co-doped ZnSe/ZnSe core/shell QDs, the fluorescence intensity of Co-doped ZnSe/ZnSe/ZnS core/shell/shell QDs has been improved greatly.
会议名称:

2018 4th International Conference on Applied Materials and Manufacturing Technology(ICAMMT 2018)

会议时间:

2018-05-25

会议地点:

中国江西南昌

  • 专辑:

    工程科技Ⅰ辑

  • 专题:

    有机化工; 材料科学

  • 分类号:

    TB383.1;TQ422

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