工程溶剂协调的异金属有机框架用于超长距离调节超长距离的室温光向时间分辨率的反伪造
Juanjuan Xue1, Zhenhong Qi2, Dongpeng Yan2
1Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, P.R. China.
Angewandte Chemie (International ed. in English)
|March 7, 2025
概括
研究人员开发了用于防伪应用的新型异金属有机框架 (HMOF). 这些材料表现出可调节的超长室温光 (RTP),具有延长寿命和高量子产量.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 光学是什么?光学是什么?光学是什么?
背景情况:
- 金属有机框架 (MOF) 显示出由于超长室温光 (RTP) 的假冒防伪潜力.
- 实现所需的光特性和理解潜在的机制仍然具有挑战性.
研究的目的:
- 开发具有可调节超长RTP的新型异金属有机框架 (HMOF).
- 研究协调溶剂和二次金属离子对光特性的影响.
- 探索反假冒和信息加密中的应用.
主要方法:
- 使用协调溶剂和第二金属离子联合战略合成了七种强大的HMOF.
- 具有不同土金属和协调溶剂的HMOF的特征.
- 利用理论计算来阐明光机制.
主要成果:
- 实现了可调节的光寿命,从14.5至195.4毫秒不等.
- 确定了高光量子产量 (ФP) 和长寿命之间的平衡,特别是在ZnSr-H2O (6.8%,195.4 ms).
- 证明了HMOFs在空间时间中的成功应用,解决了防伪和多层次信息加密.
结论:
- 拟议的共同战略有效地调整了HMOF中的超长RTP.
- 重金属和溶剂诱导的刚性增强了旋转轨道合,优化了光.
- HMOF为先进的防伪和信息安全提供了一个有前途的平台.
相关概念视频
Photoluminescence: Applications
362
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...
362
Variables Affecting Phosphorescence and Fluorescence
466
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...
466


