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玻璃封闭的碳点:具有可切换 TADF 和 RTP 的透明后照材料

Pengwei Wang¹, Peixi Cong², Jiachen Chen¹

¹Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. jhe@siom.ac.cn.

|March 12, 2025

概括

透明玻璃封闭的碳点 (CD) 显示可调节的后发光发光. 研究人员通过调整合成条件,实现了可切换热激活延迟光 (TADF) 和室温光 (RTP).

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
发光的光度是非常的低.

背景情况:

固体矩阵中碳点 (CD) 的封闭合成是先进的后照材料的关键.
纳米孔状玻璃为通过sol-gel方法进行材料制备提供了优势.

研究的目的:

开发基于碳点的透明后照材料,具有可调节的发光.
在玻璃封闭的CD中实现可切换的热激活延迟光 (TADF) 和室温光 (RTP).

主要方法:

纳米多孔玻璃的Sol-gel制备物.
在玻璃矩阵内限制碳点的合成.
调节烧结温度和离子兴奋剂 (Pb2+),以控制发光特性.

主要成果:

实现了透明玻璃封闭的CD,具有可调节的后发光发光.
通过改变烧结温度 (500-600°C) 来证明可切换的TADF和RTP.
由于增强的碳化,观察到能量差距 (ΔEST) 和寿命增加,烧结温度更高.

结论:

烧结温度和离子兴奋剂有效控制玻璃封装CD的TADF和RTP特性.
Pb2+ 兴奋剂改变了界面相互作用,使可切换的发光成为可能.
这种方法为光应用中的透明后照材料提供了一条新的途径.

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