Excimer-induced high-efficiency fluorescence due to pairwise anthracene stacking in a crystal with long lifetime.
Herein, we report an anthracene-based material, 2-(anthracen-9-yl)thianthrene (), 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.
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, P. R. China. yangbing@jlu.edu.cn.
Haichao
H
Liu
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, P. R. China. yangbing@jlu.edu.cn.
Liang
L
Yao
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, P. R. China. yangbing@jlu.edu.cn.
Bao
B
Li
College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
Xiankai
X
Chen
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, P. R. China. yangbing@jlu.edu.cn.
Yu
Y
Gao
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, P. R. China. yangbing@jlu.edu.cn.
Shitong
S
Zhang
College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
Weijun
W
Li
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, P. R. China. yangbing@jlu.edu.cn.
Ping
P
Lu
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, P. R. China. yangbing@jlu.edu.cn.
Bing
B
Yang
State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China.
Yuguang
Y
Ma