Mechanochromic luminescence and color-tunable light-emitting devices of triphenylamine functionalized benzo[d,e]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one

Bin Huang; Dawei Jiang; Yan Feng; Wen-Cheng Chen; Ying Zhang; Chen Cao; Dong Shen; Yigang Ji; Chen Wang; Chun-Sing Lee

doi:10.1039/C9TC02592H

Mechanochromic luminescence and color-tunable light-emitting devices of triphenylamine functionalized benzo[d,e]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one†

Bin Huang,*^ab Dawei Jiang,^a Yan Feng,^a Wen-Cheng Chen,

*^b Ying Zhang,^a Chen Cao,^b Dong Shen,^b Yigang Ji,^a Chen Wang^a and Chun-Sing Lee

*^b

Author affiliations

* Corresponding authors

^a College of Life Sciences and Chemistry, Jiangsu Key Laboratory of Biofunctional Molecule, Institute of New Materials for Vehicles, Jiangsu Second Normal University, Nanjing, P. R. China
E-mail: huangbinhb31@sina.com

^b Center of Super-Diamond and Advanced Films (COSDAF), and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
E-mail: wenium@live.com, apcslee@cityu.edu.hk

Abstract

A novel molecule 3-(4-diphenylaminophenyl)-benzo[d,e]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one (3-TPA-BBI) is synthesized and found to exhibit mechanochromic luminescence properties. Its photoluminescence can be reversibly switched between orange and yellow upon external stimuli. More interestingly, a non-doped device utilizing 3-TPA-BBI as the emitter exhibits unprecedented color-tunable electroluminescence upon heat treatment.

Journal of Materials Chemistry C

Mechanochromic luminescence and color-tunable light-emitting devices of triphenylamine functionalized benzo[d,e]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one†

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Mechanochromic luminescence and color-tunable light-emitting devices of triphenylamine functionalized benzo[d,e]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one

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