Linearly Tunable Emission Colors Obtained from a Fluorescent-Phosphorescent Dual-Emission Compound by Mechanical Stimuli
Linearly Tunable Emission Colors Obtained from a Fluorescent-Phosphorescent Dual-Emission Compound by Mechanical Stimuli
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通过机械刺激从荧光-磷光双发射化合物获得线性可调的发射颜色
DOI：
10.1002/anie.201500426
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发表时间：
2015-05-18
影响因子：
16.6
通讯作者：
Xu, Jiarui
中科院分区：
文献类型：
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作者：
Mao, Zhu;Yang, Zhiyong;Xu, Jiarui
有机机械发光材料是一种机械/压电致变色材料，在传感器、显示器和数据存储设备中具有广阔的应用前景。然而，它们的发射切换范围受到单一有机化合物光谱中只有一种发射(荧光峰或磷光峰)的严重阻碍。本研究提出了一种具有优异的室温荧光-磷光双发射(RFPDE)性能的纯有机化合物的设计策略，该设计策略结合了二苯基砜基团、晶态和重原子效应的影响因素。根据混色原理，通过简单的机械研磨，可以获得从橙色到紫色的多种发射颜色，并在L国际委员会(CIE)的色度图上以一条直线穿过白色区域。通过这种设计策略，可以将独特的性质集中在一种纯有机化合物上，为发现高效的机械响应有机材料提供了一条新的有效途径。
Organic mechanoluminochromic materials are mechano/piezo-responsive and promising for applications in sensors, displays, and data storage devices. However, their switching range of emission is seriously impeded by only one kind of emission (either a fluorescent or phosphorescent peak) in the spectrum of single organic compounds. This study presents a design strategy for pure organic compounds with excellent room-temperature fluorescent-phosphorescent dual-emission (rFPDE) properties, which combines the effective factors of dipenylsulfone group, crystalline state, and heavy atom effect. Following the principle of color mixing, myriad emission colors with a wide range from orange to purple and across white zone in a straight line in the chromaticity diagram of the Commission Internationale de l'Eclairage (CIE) can be obtained by simply mechanical grinding the compound. The unique properties could be concentrated on a pure organic compound through this design strategy, which provides a new efficient channel for the discovery of efficient mechano-responsive organic materials.