Photoexcitation-controlled self-recoverable molecular aggregation for flicker phosphorescence

Proceedings of the National Academy of Sciences of the United States of America
Xiaoyong JiaLiangliang Zhu

Abstract

Chemical systems with external control capability and self-recoverability are promising since they can avoid additional chemical or energy imposition during the working process. However, it remains challenging to employ such a nonequilibrium method for the engineering of optoelectronic function and for visualization. Here, we report a functional molecule that can undergo intense conformational regulation upon photoexcitation. It enables a dynamical change in hydrophobicity and a follow-up molecular aggregation in aqueous media, accordingly leading to an aggregation-induced phosphorescence (AIP) behavior. This successive performance is self-recoverable, allowing a rapid (second-scale cycle) and long-standing (>103 cycles) flicker ability under rhythmical control of the AIP. Compared with traditional bidirectional manipulations, such monodirectional photocontrol with spontaneous reset profoundly enhances the operability while mostly avoiding possible side reactions and fatigue accumulation. Furthermore, this material can serve as a type of luminescent probe for dynamically strengthening visualization in bioimaging.

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Citations

Nov 2, 2019·Beilstein Journal of Organic Chemistry·Xianzhi ChaiHe Tian
Feb 8, 2020·Chemistry, an Asian Journal·Jiahuan ZhiWei Huang
Sep 3, 2020·Chemical Science·Zhiyun ZhangHe Tian
Feb 29, 2020·Research : a Science Partner Journal·Mingxing GuWei Huang
Dec 22, 2020·Advanced Materials·Xuyang YaoAndreas Walther
Jan 19, 2021·Organic & Biomolecular Chemistry· GoudappagoudaSukumaran Santhosh Babu
Feb 12, 2021·Nature Communications·Zhongyu LiLiangliang Zhu
Jun 30, 2021·The Journal of Physical Chemistry Letters·Taoyu WengLiangliang Zhu
Jul 3, 2021·Research : a Science Partner Journal·Jian GuLiangliang Zhu
Oct 31, 2019·The Journal of Physical Chemistry Letters·Haoke ZhangBen Zhong Tang
Jul 11, 2019·The Journal of Organic Chemistry·Morgan E Howe, Miguel A Garcia-Garibay
Jul 9, 2020·The Journal of Physical Chemistry Letters·Long GuWei Huang
Oct 28, 2021·Journal of the American Chemical Society·Long GuYanli Zhao
Dec 2, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Yifan GongLiangliang Zhu

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