Elucidating the Excited State of Mechanoluminescence in Organic Luminogens with Room-Temperature Phosphorescence
Elucidating the Excited State of Mechanoluminescence in Organic Luminogens with Room-Temperature Phosphorescence
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用室温磷光阐明有机发光体中机械发光的激发态
DOI：
10.1002/anie.201708119
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Li Zhen
中科院分区：
文献类型：
--
作者：
Yang Jie;Gao Xuming;Xie Zongliang;Gong Yanbin;Fang Manman;Peng Qian;Chi Zhenguo;Li Zhen
两种稳定的纯有机发光源在室温下表现出机械发光（ML）和光致发光（PL）的双重荧光-磷光发射。对晶体结构的仔细分析，加上理论计算，表明室温磷光和ML性质与分子堆积密切相关。特别是，在PL和ML过程中，具有分子间电荷转移性质的分子二聚体的形成和断裂对系统间交叉以及激发三重态发射都有显著影响。
Two stable, purely organic luminogens exhibit both mechano‐ (ML) and photoluminescence (PL) with dual fluorescence–phosphorescence emissions at room temperature. Careful analysis of the crystal structures, coupled with theoretical calculations, demonstrate that room‐temperature phosphorescence and ML properties are strongly related to molecular packing. In particular, the formation and fracture of molecular dimers with intermolecular charge‐transfer properties has a significant effect on intersystem crossing, as well as excited triplet state emissions, in both PL and ML processes.