A Mechanofluorochromic Push-Pull Small Molecule with Aggregation-Controlled Linear and Nonlinear Optical Properties.

Jiang, Yue; Gindre, Denis; Allain, Magali; Liu, Ping; Cabanetos, Clément; Roncali, Jean · Adv Mater · 2015

basic_science · Level V

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Abstract

A small push-pull molecule involving a diphenylamine substituted by an oligo-oxyethylene chain is described. The compound exhibits aggregation-induced emission with solvent-dependent emission wavelength. Spin-cast deep-red amorphous films rapidly self-reorganize into colorless crystalline films which exhibit mechanofluorochromism and aggregation-induced second-harmonic generation.