可见光可激发的碳点@脱水酸复合材料,具有双模式发射,用于多层加密
Zheng-Yang Quan1, Xiao Rao1, Bo Ding1
1College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, People's Republic of China.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|October 24, 2025
概括
新型N-doped碳点 (CDs) 复合材料显示了室温光 (RTP) 和热激活延迟光 (TADF) 的双模式发射. 这些材料对先进的反假冒和信息加密应用有前途.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 光物理学的光学物理学
背景情况:
- 碳点 (CD) 复合材料具有持久的光照,对防伪,加密,传感和生物成像有价值.
- 在单个CD衍生复合材料中,同时进行双模式发射 (RTP和TADF) 是罕见的.
研究的目的:
- 开发基于N-dopedCD的新型复合材料,具有双模式发射 (RTP和TADF).
- 调查N-异环碳源对排放性质的影响.
- 探索先进技术的应用,如防伪和信息加密等.
主要方法:
- 在脱水玻尿酸 (DBA) 基质中固定的N-化CD的一步性热解合成,使用不同的N-异环前体 (二-5-碳酸,1H-二,1,2,4-二).
- 光发光性质的表征,包括排放寿命测量.
- 对双色显示,数字防伪和信息加密的应用潜力的评估.
主要成果:
- 两种复合材料 (BTA'-CDs@DBA和BTA-CDs@DBA) 呈现双态排放 (RTP和TADF) 具有较长的排放寿命 (高达1374毫秒).
- 该TA-CDs@DBA复合体显示了与激发相关的RTP发射,寿命较短 (1313毫秒).
- 在可见光下,具有扩展合和碳酸基的N-异环碳源首选激活TADF发射.
结论:
- N-doped CDs@DBA复合材料可以实现双模式 RTP 和 TADF 排放,受碳源结构的影响.
- 这些材料为先进的应用提供可调节的后照性能.
- 开发的复合材料显示了双色显示,数字防伪和多层次信息加密的潜力.
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