Crosstalk-free patterning of cooperative-thermoresponse images by the synergy of the AIEgen with the liquid crystal
Crosstalk-free patterning of cooperative-thermoresponse images by the synergy of the AIEgen with the liquid crystal
复制标题
通过 AIEgen 与液晶的协同作用实现协作热响应图像的无串扰图案化
DOI：
10.1002/anie.201915053
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Xie Xiaolin
中科院分区：
文献类型：
--
作者：
Zhao Ye;Zhao Xiaoyu;Li Ming-De;Li Zhong'an;Peng Haiyan;Xie Xiaolin
Patterning multiple images within a single element without crosstalk can significantly increase the information capacity and security, but it is challenging to enable the response capability in each image. Now, the patterning of crosstalk‐free yet cooperative‐thermoresponse images (holographic and fluorescent images) is successfully achieved by designing a liquid crystal (LC)/AIEgen system with a unique synergy. The AIEgen's fluorescence intensity is controlled by the LC, while the LC's phase transition is in turn promoted by the AIEgen. The fluorescent image contrast is significantly boosted by efficient energy transfer (ΦET: 96 %) from the LC to the AIEgen. The AIEgen's photocyclization for fluorescent patterning occurs in a zero‐order kinetic manner and can be completed within several minutes when assisted by the LC. The photocyclization conversion is quantitatively dependent on the aggregation size:α∼exp(‐d), and able to reach as high as 98 %.
