Reversible Switching of the Emission of Diphenyldibenzofulvenes by Thermal and Mechanical Stimuli
Reversible Switching of the Emission of Diphenyldibenzofulvenes by Thermal and Mechanical Stimuli
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DOI：
10.1002/adma.201101059
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发表时间：
2011-08-02
影响因子：
29.4
通讯作者：
Tang, Ben Zhong
中科院分区：
文献类型：
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作者：
Luo, Xiaoliang;Li, Jienian;Tang, Ben Zhong
研究了二苯基二苯并富烯的热致变色和机械致变色荧光。结晶时发射增强并发生蓝移。该材料的黄色发射晶体在熔化前加热时会转变为绿色荧光晶体。通过纯热处理或研磨加热循环重复进行染料分子的非晶化和结晶化，实现了发射颜色和效率的可逆切换。
The thermochromic and mechanochromic fluorescence of diphenyldibenzofulvenes is investigated. Emission is boosted and blue-shifted upon crystallization. Yellow emissive crystals of the material transform to green fluorescent crystals upon heating before melting. Reversible switching of the emission color and efficiency are achieved by repeated amorphization and crystallization of dye molecules by a pure thermal process or grinding-heating cycles.