通过对抗伪造的铜基化物进行素调节来实现双色发光
Chenyi Zhang1, Chuanrui Zhu1, Baopeng Shan1
1College of Physics and Engineering, Qufu Normal University, Qufu 273165, China.
Inorganic chemistry
|August 20, 2025
概括
新型基于铜的化物具有可调节的黄色和蓝色发光,非常适合先进的防伪和信息安全应用. 这种素调节策略为多色发光材料提供了新的可能性.
科学领域:
- 材料科学
- 无机化学
- 发光效应
背景情况:
- 多色发光材料对于防伪和信息安全至关重要.
- 基于铜的化物因其独特的光学特性而受到探索.
研究的目的:
- 合成新的零维铜基化物与可调的双色发射.
- 研究它们的发光结构与属性关系.
- 探索防伪和信息安全方面的应用.
主要方法:
- 合成两个新的零维铜化物: (C5H11N3) 2Cu3Cl7·H2O和 (C5H11N3) 2Cu2Br6.
- 晶体结构和光学属性的表征 (发射光谱,斯托克斯转移,寿命,光发光量产量 (PLQY)).
- 密度函数理论 (DFT) 的计算,以了解结构-属性相关性.
主要成果:
- 通过素调节成功合成双色发射铜化物.
- 黄色 (549 nm) 和蓝色 (457 nm) 辐射的观测归因于自我捕获的激子 (STE) 辐射.
- 实现了较大的斯托克斯转移和较长的发光寿命;与化物 (15.90%) 相比,化物具有更高的PLQY (23.79%).
- DFT计算证实了铜化物集群在光学性能中的重要作用.
结论:
- 合成的铜基化物通过素调节表现出可调节的多色发光.
- 这些材料对防伪和信息安全应用具有有前途的特性.
- 这项工作为设计基于铜化物的先进发光材料提供了洞察力.
相关概念视频
Photoluminescence: Applications
485
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
485
Variables Affecting Phosphorescence and Fluorescence
591
Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
591


