Remarkable Turn-On and Color-Tuned Piezochromic Luminescence: Mechanically Switching Intramolecular Charge Transfer in Molecular Crystals

• Published in: Advanced functional materials Vol. 25; no. 26; pp. 4005 - 4010
• Main Authors: Qi, Qingkai, Qian, Jingyu, Tan, Xiao, Zhang, Jibo, Wang, Lijuan, Xu, Bin, Zou, Bo, Tian, Wenjing
• Format: Journal Article
• Language: English
• Published: Blackwell Publishing Ltd 01.07.2015
• Subjects: Charge transfer; Crystals; Excitation; Fluorescence; high contrast; ICT switch; Luminescence; mechanical stimuli; molecular crystals; piezochromic luminescence; Stimuli; Switching; Tuning

The molecular crystals of acridonyl‐tetraphenylethene (AD‐TPE) exhibit an intriguing turn‐on and color‐tuned luminescence in response to mechanical grinding and hydrostatic compression. On the basis of in‐depth experimental and computational studies, it is hypothesized that the origin of the piezoch...