Inorganic Chemicals Industry >

2020 , Vol. 52 >Issue 8: 30 - 35

DOI: https://doi.org/10.11962/1006-4990.2019-0498

Research & Development

Preparation of Sm doped ZnO QDs and its fluorescence performance

  • Qiumei Huang ,
  • Xiaowei Lü ,
  • Jialin Tan ,
  • Lijun Li ,
  • Hao Cheng ,
  • Jun Feng ,
  • Wenyi Huang
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  • 1. Guangxi Key Laboratory of Green Processing of Sugar Resources,College of Biological and Chemical Engineering,Guangxi University of Science and Technology,Liuzhou 545006,China
    2. Province and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry

Received date: 2020-02-26

  Online published: 2020-08-12

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Abstract

Sm-doped zinc oxide quantum dots（ZnO QDs） with good dispersibility were prepared by studying different amount-of-substance ratiosof alkali-zinc and samarium-zinc.It was characterized by UV-vis spectroscopy（UV-vis）,X-ray diffraction（XRD）,field emission transmission electron microscopy（TEM）,energy dispersive X-ray spectroscopy（EDS） and X-ray photoelectron spectroscopy（XPS）.The results showed that ZnO QDs prepared with n（Zn）∶n（OH-）=1∶1 and Sm doping amount of 4%（amount-of-substance fraction） had the strongest fluorescence emission intensity under UV excitation at 383 nm.It was also found that the doping of rare earth Sm ions was related to the formation of oxygen vacancies（OV） in ZnO QDs.The oxygen vacancy concentration of Sm-doped ZnO QDs was higher than that of undoped,and the higher the concentration of oxygen vacancies in ZnO QDs,the stronger the fluorescence emission intensity.

Key words： ZnO QDs; Sm; doping; fluorescence

Cite this article

Qiumei Huang , Xiaowei Lü , Jialin Tan , Lijun Li , Hao Cheng , Jun Feng , Wenyi Huang . Preparation of Sm doped ZnO QDs and its fluorescence performance[J]. Inorganic Chemicals Industry, 2020 , 52(8) : 30 -35 . DOI: 10.11962/1006-4990.2019-0498

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