Aggregation enhanced pure violet emission of a spiral meta-polyfluorene by supramolecular control of excimer formation

Luyang Du; Yueqi Mo; Xiaoyan Wu; Jinchang Huang; Linlin Liu; Yuyu Pan; Dehua Hu; Zengqi Xie; Bing Yang; Yuguang Ma

doi:10.1039/C5TC00206K

Aggregation enhanced pure violet emission of a spiral meta-polyfluorene by supramolecular control of excimer formation†

Luyang Du,^a Yueqi Mo,

^a Xiaoyan Wu,^b Jinchang Huang,^a Linlin Liu,*^a Yuyu Pan,^b Dehua Hu,^a Zengqi Xie,^a Bing Yang^b and Yuguang Ma*^a

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^a Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Device, South China University of Technology, Guangzhou, China
E-mail: ygma@scut.edu.cn, msliull@scut.edu.cn

^b State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, China

Abstract

In π-conjugated optoelectronic functional materials, the excimer in the aggregate state drew much attention because of undesired low energy emission and fluorescence quenching. We report enhanced pure violet emission in meta-polyfluorene by restrained excimer formation in double-helix-like interchain entangled aggregates. It will be beneficial for optoelectric application of conjugated polymers, especially in the processing of film fabrication for high efficiency devices.

Journal of Materials Chemistry C

Aggregation enhanced pure violet emission of a spiral meta-polyfluorene by supramolecular control of excimer formation†

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Aggregation enhanced pure violet emission of a spiral meta-polyfluorene by supramolecular control of excimer formation

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