Excimer-induced high-efficiency fluorescence due to pairwise anthracene stacking in a crystal with long lifetime

Haichao Liu; Liang Yao; Bao Li; Xiankai Chen; Yu Gao; Shitong Zhang; Weijun Li; Ping Lu; Bing Yang; Yuguang Ma

doi:10.1039/C6CC01993E

Excimer-induced high-efficiency fluorescence due to pairwise anthracene stacking in a crystal with long lifetime†

Haichao Liu,^a Liang Yao,^a Bao Li,^a Xiankai Chen,^b Yu Gao,^a Shitong Zhang,^a Weijun Li,^c Ping Lu,^a Bing Yang*^a and Yuguang Ma^d

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* Corresponding authors

^a State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China
E-mail: yangbing@jlu.edu.cn

^b College of Chemistry, Jilin University, Changchun, P. R. China

^c College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P. R. China

^d State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, P. R. China

Abstract

Herein, we report an anthracene-based material, 2-(anthracen-9-yl)thianthrene (2-TA-AN), whose crystal exhibits excimer fluorescence with an unexpected high luminous efficiency (up to 80%) and long lifetime (163.75 ns), due to pairwise anthracene stacking. These results will update the traditional view that excimers are poorly efficient in photoluminescence.

Chemical Communications

Excimer-induced high-efficiency fluorescence due to pairwise anthracene stacking in a crystal with long lifetime†

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Excimer-induced high-efficiency fluorescence due to pairwise anthracene stacking in a crystal with long lifetime

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