碳点基复合材料的一般合成,具有三种模式发光特性和高稳定性
Ping Liang1, Yihao Zheng1,2, Fengru Liu1
1Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
JACS Au
|September 1, 2023
概括
研究人员开发了稳定的多发光碳点 (CD),集成到YF3矩阵中. 这种复合材料在先进的防伪和信息加密应用中表现有前途.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 光电学是指光电子产品.
背景情况:
- 碳点 (CD) 为光学防伪提供了出色的光物理性能.
- 开发具有多模式发光和高稳定性的CD具有挑战性.
- 现有的方法在基于CD的材料中努力实现多模式发光和强大的稳定性.
研究的目的:
- 开发一种基于CD的材料的总体合成策略,以增强多模式发光和稳定性.
- 创建新的发光复合材料,用于先进的防伪和信息加密.
- 研究YF3矩阵在稳定碳点和稀土离子中的作用.
主要方法:
- 将碳点 (CD) 纳入 Yb,Tm 合的 YF3 矩阵中,形成 CDs@YF3:Yb,Tm 复合材料.
- 利用YF3作为稀土离子的宿主和CD稳定硬矩阵.
- 在紫外线 (365 nm) 和近红外线 (980 nm) 光激发下的发光特性.
主要成果:
- CDs@YF3:Yb,Tm复合材料从CD中显示出蓝色光和绿色室温光.
- 同时观察来自Tm3+离子的上转换发光.
- YF3矩阵显著提高了CD的光稳定性.
- 在单一材料中实现多模式发光 (光,光,向上转换).
结论:
- 建立了基于CD的稳定,多模式发光材料的总合成策略.
- YF3矩阵有效地稳定了CD和稀土离子,提高了材料性能.
- 开发的CDs@YF3:Yb,Tm复合材料显示了防伪和信息加密的巨大潜力.
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