Highly sensitive switching of solid-state luminescence by controlling intersystem crossing.
Highly sensitive switching of solid-state luminescence by controlling intersystem crossing.
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通过控制系间窜越实现固态发光的高灵敏切换
DOI：
10.1038/s41467-018-05476-y
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发表时间：
2018-08-02
影响因子：
16.6
通讯作者：
Tang BZ
中科院分区：
文献类型：
--
作者：
Zhao W;He Z;Peng Q;Lam JWY;Ma H;Qiu Z;Chen Y;Zhao Z;Shuai Z;Dong Y;Tang BZ
智能材料的发展，特别是那些表现出高度灵敏的机械响应发光(MRL)的材料，是可取的，但也是具有挑战性的。在这里，我们报道了一种通过在具有聚集诱导发射(AIE)特性的分子中引入硝基苯基来构建高性能开关磁致发光材料的设计策略。所采用的开关方法基于对系统间交叉(ISC)过程的控制。实验和理论研究表明，硝基苯基有效地打开了无辐射的ISC通道，提供了高灵敏度和对比度的开关行为。另一方面，扭曲的AIE发光器芯增强了可逆性，并降低了发光开关所需的压力。薄膜可以很容易地从设计的材料中制造出来，从而在光学信息记录和触觉传感方面有广泛的应用。因此，提出的设计策略为扩大独特的开关MRL家族的范围迈出了一大步。智能材料的发展，特别是那些表现出高度灵敏的机械响应发光(MRL)的材料，仍然具有挑战性。在这里，作者报道了一种通过在具有聚集诱导发射特性的分子中引入硝基苯基来构建高性能开关磁阻发光材料的策略。
The development of intelligent materials, in particular those showing the highly sensitive mechanoresponsive luminescence (MRL), is desirable but challenging. Here we report a design strategy for constructing high performance On–Off MRL materials by introducing nitrophenyl groups to molecules with aggregation-induced emission (AIE) characteristic. The on–off methodology employed is based on the control of the intersystem crossing (ISC) process. Experimental and theoretical investigations reveal that the nitrophenyl group effectively opens the nonradiative ISC channel to impart the high sensitivity and contrast On–Off behavior. On the other hand, the twisted AIE luminogen core endows enhanced reversibility and reduces the pressure required for the luminescence switching. Thin films can be readily fabricated from the designed materials to allow versatile applications in optical information recording and haptic sensing. The proposed design strategy thus provides a big step to expand the scope of the unique On–Off MRL family. The development of intelligent materials, in particular those showing the highly sensitive mechanoresponsive luminescence (MRL), remains challenging. Here the authors report a strategy for constructing high performance On-Off MRL materials by introducing nitrophenyl groups to molecules with aggregation-induced emission characteristic.
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DOI：
10.3390/s130201435
发表时间：
2013-01-24
期刊：
Sensors (Basel, Switzerland)
影响因子：
--
作者：
Lucarotti C;Oddo CM;Vitiello N;Carrozza MC
通讯作者：
Carrozza MC
影响因子：
6.4
作者：
Han, Tianyu;Hong, Yuning;Tang, Ben Zhong
通讯作者：
Tang, Ben Zhong
影响因子：
56.9
作者：
Ducrot, Etienne;Chen, Yulan;Creton, Costantino
通讯作者：
Creton, Costantino
影响因子：
16.6
作者：
Naito, Hirofumi;Morisaki, Yasuhiro;Chujo, Yoshiki
通讯作者：
Chujo, Yoshiki
影响因子：
3.3
作者：
Bhongale, CJ;Chang, CW;Hsu, CS
通讯作者：
Hsu, CS