4.8 Article

White-Light-Emitting AlE/Eu3+-Doped Ion Gel with Multistimuli-Responsive Properties

Journal

ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 40, Pages 45420-45428

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c15656

Keywords

multistimuli-responsive material; white-light-emitting material; ion gel; aggregation-induced emission; Eu fluorescence

Funding

  1. National Natural Science Foundation of China [51473005, 51725301]

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A white-light-emitting ion gel composed of a poly[(2-(4-vinylphenyl)ethene-1,1,2-triyl)tribenzene-b-ethylene glycol-b-(2-(4-vinylphenyl)ethene-1,1,2-triyl)tribenzene] aggregation-induced emission (AIE) network and a poly([2,2':6',2 ''-terpyridin]-4'-yl methacrylate-co-methyl methacrylate) Eu3+-doped network was fabricated via a solution mixing process. This ion gel exhibits special multistimuli-responsive properties, and it can change its luminescent color by changing pH, temperature, or the solvent. The unique color-changing property is attributed to the different luminescent mechanisms of the AIE/Eu3+-doped polymer networks. The former is affected by changes in its aggregation state, while the latter is controlled by the dynamic metalligand cross-linking bonds. Furthermore, owing to the interpenetrating networks formed by the two polymers, the hybrid gel has both good mechanical strength and flexibility. It may be used in the fields of sensors, probes, and light-emitting materials.

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