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基于紫外光辐照法制备CuSe/ZnSe核壳结构纳米粒子
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作者单位:

1.山东师范大学物理与电子科学学院;2.山东师范大学化学化工与材料科学学院;3.济南大学化学化工学院

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中图分类号:

TG146.4;TN304.2

基金项目:

国家自然科学基金资助(项目号51175069),山东师范大学大型仪器设备开放(编号:KFJJ2017008)


Preparation of CuSe /ZnSe core-shell structured nanoparticles under UV irradiation
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1.School of Physics and Electronics,Shandong Normal University;2.School of Chemistry and Chemical Engineering,University of Jinan

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    摘要:

    本文成功制备出以CuSe为核心、ZnSe为壳层,具有核壳结构的CuSe/ZnSe纳米粒子。首先采用回流冷凝法制备出CuSe纳米粒子(NPs)。然后,采用一种简单、快速的光化学方法即紫外光辐照法,室温下在CuSe NPs外包覆ZnSe壳层,最终得到CuSe/ZnSe核壳结构纳米粒子。利用X射线衍射(XRD)、能量色散谱仪(EDS)、透射电镜(TEM)、高分辨透射电镜(HRTEM)和光致发光光谱(PL)对合成的CuSe/ZnSe核壳NPs进行了表征。结果分析表明,合成的CuSe纳米粒子具有六方相结构,粒径平均大小在12 nm。制备出的CuSe/ZnSe纳米粒子的核壳结构清晰,生长的ZnSe壳层为立方闪锌矿结构,粒径大小约为15~45 nm。通过ZnSe壳层的包覆使CuSe在475 nm处产生蓝光发射,同时荧光强度显著增强。

    Abstract:

    In this paper, CuSe/ZnSe nanoparticles with core-shell structure with CuSe as the core and ZnSe as the shell were successfully prepared were prepared. First, CuSe nanoparticles (NPs) were prepared by reflux condensation. Then, a simple and rapid photochemical method, namely ultraviolet illumination, was used to grow ZnSe shells on CuSe nanoparticles at room temperature. Finally, CuSe/ZnSe core-shell nanoparticles were obtained. The synthesized CuSe/ZnSe core-shell NPs was characterized by different analyses methods such as X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM) and Photoluminescence Spectroscopy (PL). The results show that the synthesized CuSe nanoparticles have hexagonal phase structure with an average particle size of 12 nm. The core-shell structure of CuSe/ZnSe nanoparticles is clear, and the ZnSe shell is of cubic sphalerite structure with a particle size of about 15~45 nm. The blue light emission at 475 nm was induced by the coating of ZnSe shell, and the fluorescence intensity was significantly enhanced.

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夏蕾,刘连栋,李学,张晓凯.基于紫外光辐照法制备CuSe/ZnSe核壳结构纳米粒子[J].稀有金属材料与工程,2021,50(12):4592~4596.[Lei Xia, Lian-dong Liu, Xue Li, Xiao-kai Zhang. Preparation of CuSe /ZnSe core-shell structured nanoparticles under UV irradiation[J]. Rare Metal Materials and Engineering,2021,50(12):4592~4596.]
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历史
  • 收稿日期:2021-03-15
  • 最后修改日期:2021-06-17
  • 录用日期:2021-06-21
  • 在线发布日期: 2022-01-09
  • 出版日期: 2021-12-24