Design of Ratiometric Dual-Emitting Mechanoluminescence: Lanthanide/Transition-Metal Combination Strategy,Laser & Photonics Reviews

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Design of Ratiometric Dual-Emitting Mechanoluminescence: Lanthanide/Transition-Metal Combination Strategy
Laser & Photonics Reviews ( IF 9.8 ) Pub Date : 2022-02-04 , DOI: 10.1002/lpor.202100666
Su Zhou _{1,

2} , Yao Cheng _{1,

3} , Ju Xu ₁ , Hang Lin _{1,

3} , Wenjia Liang ₄ , Yuansheng Wang ₁

Affiliation

Mechanoluminescence (ML) materials with the ability to convert mechanical stimulate into visible light signals have enabled visualized mechanics sensing. To this point, stress sensing based on ML color is preferred over that based on ML intensity in terms of both sensing reliability and visual sensitivity. In this work, a ratiometric dual-emitting ML strategy to realize the stress-sensitive ML color variation, where the Lanthanide/transition-metal combination is adopted to build the dual-activator ML system is proposed. The difference in electronic configuration between Lanthanide and transition-metal ions leads to the significant discrepancy in the response of corresponding luminescence kinetics to the instantaneous change of local crystal field environment induced by stress, which plays a key role in the strategy. This strategy establishes a new general path for the design of novel ratiometric ML materials.

中文翻译：

比例双发射机械发光设计：镧系元素/过渡金属组合策略

具有将机械刺激转换为可见光信号能力的机械发光 (ML) 材料已经实现了可视化力学传感。至此，在传感可靠性和视觉灵敏度方面，基于 ML 颜色的应力传感优于基于 ML 强度的应力传感。在这项工作中，提出了一种比例双发射 ML 策略来实现应力敏感的 ML 颜色变化，其中采用镧系元素/过渡金属组合来构建双活化剂 ML 系统。镧系元素和过渡金属离子之间的电子构型差异导致相应的发光动力学对应力引起的局部晶场环境瞬时变化的响应存在显着差异，这在该策略中起关键作用。

更新日期：2022-02-04

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