基于兰酸的超快和多色发光切换
Jiangkun Chen1,2, Yang Guo1,2, Bing Chen1,2
1Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077Hong Kong SAR, China.
Journal of the American Chemical Society
|November 23, 2022
概括
这项研究引入了一种新型的水色矿晶体,Cs3TbF6:Eu3+,在暴露在水中时,其发光颜色迅速从绿色变为色. 这种快速可逆的颜色变化为先进的传感和数据存储应用提供了新的可能性.
科学领域:
- 材料科学
- 固态化学
- 发光效应
背景情况:
- 水色材料在接触水时会改变颜色,
- 目前的材料反应缓慢, 稳定性有限, 颜色调节不佳.
- 需要新的色发光材料用于先进的应用.
研究的目的:
- 开发一种具有可切换发光的新型化晶体.
- 调查水色和发光特性背后的机制.
- 探索微调发射颜色和信息技术中的应用潜力.
主要方法:
- 零维Cs3TbF6:Eu3+矿晶体的合成
- 水色反应和发光切换的特征.
- 使用相变分析和兴奋剂度控制的机制研究.
主要成果:
- 合成了一种新型的水色矿晶体,Cs3TbF6:Eu3+.
- 暴露在水中会导致从0D到1D结构的超快 (20毫秒) 的可逆相变.
- 由于能量合,发光量从绿色 (Tb3+) 切换为色 (Eu3+),可通过补调节.
结论:
- 这种Cs3TbF6:Eu3+矿具有快速,可逆的色和可切换的发光.
- 水引起的相变是颜色变化的关键机制.
- 可调节的发射和快速响应为信息安全和数据存储提供了机会.
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