Dual-channel mechano-phosphorescence:a combined locking effect with twisted molecular structures and robust interactions  

作　　者：Zongliang Xie Zhu Mao Hailan Wang Yuxin Xiao Xiayu Zhang Tao Yu Zhongfu An Wei Huang 

机构地区：[1]Frontiers Science Center for Flexible Electronics,Xi’an Institute of Flexible Electronics&Xi’an Institute of Biomedical Materials and Engineering,Northwestern Polytechnical University,127 West Youyi Road,Xi’an 710072,China. [2]Research&Development Institute of Northwestern Polytechnical University in Shenzhen,Shenzhen 518100,China. [3]Shenzhen Institutes of Advanced Electronic Materials,Shenzhen 518100,China. [4]Key Laboratory of Flexible Electronics&Institute of Advanced Materials,Nanjing Tech University,30 South Puzhu Road,Nanjing 211816,China

出　　处：《Light(Science & Applications)》2024年第4期738-746,共9页光（科学与应用)（英文版）

基　　金：the financial support from the NSF of China(62275217,52103230);Natural Science Basic Research Program of Shaanxi(2024JC-JCQN-51);Guangdong Basic and Applied Basic Research Foundation(2020A1515110603,2021A1515010633);China Aerospace Science and Industry Corporation(2020Z073053007).

摘　　要：Organic mechanoluminescence materials,featuring dual emission and ultralong phosphorescence characteristics,exhibit significant potential for applications in real-time stress sensing,pressure-sensitive lighting,advanced security marking techniques,and material breakage monitoring.However,due to immature molecular design strategies and unclear luminescence mechanisms,these materials remain rarely reported.In this study,we propose a valuable molecular design strategy to achieve dual-channel mechano-phosphorescence.By introducing the arylphosphine oxide group into a highly twisted molecular framework,enhanced intra-and intermolecular interactions could be achieved within rigid structures,leading to dual-channel mechanoluminescence with greatly promoted ultralong phosphorescence.Further investigations reveal the substantial boosting effect of intra-and intermolecular interactions on mechanoluminescence and ultralong phosphorescence properties by locking the highly twisted molecular skeleton.This work provides a concise and guiding route to develop novel smart responsive luminescence materials for widespread applications in material science.

关 键 词：channel LUMINESCENCE LOCKING 

分 类 号：O4[理学—物理]