Sensitized mechanoluminescence design toward mechanically induced intense red emission from transparent polymer films

Fan Yang, Yuan Yuan, Rint P. Sijbesma (Corresponding author), Yulan Chen (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Mechanoresponsive polymers with intense red emission are highly desirable in view of the strong penetrability and high resolution of red luminescence. Herein we introduce the sensitized luminescence of rare-earth Eu(III) complexes into the mechanochemiluminescence from polymeric dioxetane in a covalent way. By controlling the energy-Transfer process from mechanically broken dioxetane to the Eu(III) center, bright red emission from transparent poly(methyl acrylate) films was achieved for the first time. Importantly, mechanoluminescence sensitivity is greatly improved, enabling the location and timing of bond scission with high resolution. A sensitive stretchable device with the polymer film as an emissive layer was fabricated by a facile surface-engineering method, which can emit patterned red light upon deformation. This sensitized mechanoluminescence design thus expands the useful space of luminescent stress probes.

Original languageEnglish
Pages (from-to)905-912
Number of pages8
JournalMacromolecules
Volume53
Issue number3
DOIs
Publication statusPublished - 11 Feb 2020

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