大学化学 >> 2024, Vol. 39 >> Issue (9): 304-310.doi: 10.12461/PKU.DXHX202311079

所属专题： 化学科普(2024)

科普 上一篇    下一篇

荧光“变色龙”——基于动态发光的科普实验方案

衣梓硕, 刘鹏, 徐燕   

  1. 东北大学理学院化学系, 沈阳 110819
  • 收稿日期:2023-11-23 修回日期:2024-01-05 发布日期:2024-09-23
  • 通讯作者: 徐燕 E-mail:xuyan@mail.neu.edu.cn
  • 基金资助:
    国家自然科学基金面上项目(22171040)

Fluorescent “Chameleon”: A Popular Science Experiment Based on Dynamic Luminescence

Zishuo Yi, Peng Liu, Yan Xu   

  1. Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
  • Received:2023-11-23 Revised:2024-01-05 Published:2024-09-23
  • Contact: Yan Xu E-mail:xuyan@mail.neu.edu.cn

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摘要： 制备无毒的ZnGa2O4:Bi3+荧光材料，其同时具备可调多色荧光、动态光致变色及热致变色的三模式发光性质。我们利用这种类似“变色龙”的荧光特性设计了三种信息安全实施方案，实验互动性强且具有趣味性，有良好的科普实践展示效果，有助于激发学生对化学学科的学习热情，进而帮助青少年体会“美丽化学”的丰富内涵。

关键词: 动态荧光, 光致变色, 热致变色, 科普实验, 防伪

Abstract: In this popular science experiment, the non-toxic ZnGa2O4:Bi3+ fluorescent material was prepared which has three mode luminescence properties including tunable multicolor emission, dynamic photochromic and thermochromic fluorescence properties. By utilizing the “chameleon-like” fluorescence characteristics of the material, we designed three kinds of display schemes for information security application. The experiment is not only interactive and interesting, but also has a good effect on popular science practice, which is helpful to stimulate students’ enthusiasm for learning chemistry, and help adolescents experience the rich connotation of “beautiful chemistry”.

Key words: Dynamic luminescence, Photochromism, Thermochromism, Experiments of popularization of science, Anti-counterfeiting