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Highly Ordered AIEgens Directed Silica Hybrid Mesostructures and Their Light-Emitting Behaviours

Abstract

Mesostructured fluorescent silica hybrids (MFSHs) were synthesized by using tetraphenylethylene (TPE)-based quaternary ammonium salts as amphiphilic organic fluorophore template, carboxyethylsilanetriol disodium salt (CES) as co-structure directing agent (CSDA) and tetraethylorthosilicate (TEOS) as inorganic precursor. With increasing alkyl chain of the templates, the mesostructures transformed from lamellar (alkyl carbon length of C4, C5, C6 and C7) to three-dimensional (3D) bicontinuous cubic gyroid structure (C8 and C10). These materials show typical aggregation-induced emission (AIE) behaviours corresponding to the molecular arrangement in the mesoscale. Compared to the pure template, the emission maximum of the material with lamellar structure shows a red-shift phenomenon due to the higher conjugation caused by the close stacking of the AIEgens, while the emission maximum remains unchanged in the bicontinuous cubic structure owing to the loose stacking of the template molecules.

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Publication details

The article was received on 13 Sep 2018, accepted on 29 Nov 2018 and first published on 30 Nov 2018


Article type: Paper
DOI: 10.1039/C8TC04644A
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Highly Ordered AIEgens Directed Silica Hybrid Mesostructures and Their Light-Emitting Behaviours

    H. Chang, W. Mao, Y. Duan, W. Zhang, C. Zhou, L. Han, L. J. Li and S. Che, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C8TC04644A

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