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Issue 16, 2019
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High-performance blue fluorescent/electroactive polyamide bearing p-phenylenediamine and asymmetrical SBF/TPA-based units for electrochromic and electrofluorochromic multifunctional applications

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Abstract

Electrofluorochromic (EFC) materials with excellent comprehensive properties possess promising application prospects in optoelectronic and biological fields. Here, a novel high-performance polyamide (SBF-HPA) has been realized by bearing stably electroactive p-phenylenediamine and asymmetrical spirobifluorene/triphenylamine-based groups to reduce the π–π stacking of polymer chains. The resulting polyamide showed high fluorescence with a quantum yield of up to 69.7% and 14.3% for its NMP dilute solution and solid-film states, respectively. The CV curves revealed two redox couples accompanied with two stages of color change (near colorless–green–blue). Furthermore, the blue fluorescent/electroactive polyamide film exhibited excellent electrochemical stability, high fluorescence/color contrast, fast switching speed and superior EC/EFC cycling stability, facilitating real-life applications in the near future.

Graphical abstract: High-performance blue fluorescent/electroactive polyamide bearing p-phenylenediamine and asymmetrical SBF/TPA-based units for electrochromic and electrofluorochromic multifunctional applications

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Publication details

The article was received on 17 Jan 2019, accepted on 07 Feb 2019 and first published on 09 Apr 2019


Article type: Paper
DOI: 10.1039/C9TC00326F
Citation: J. Mater. Chem. C, 2019,7, 4644-4652

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    High-performance blue fluorescent/electroactive polyamide bearing p-phenylenediamine and asymmetrical SBF/TPA-based units for electrochromic and electrofluorochromic multifunctional applications

    K. Su, N. Sun, X. Tian, S. Guo, Z. Yan, D. Wang, H. Zhou, X. Zhao and C. Chen, J. Mater. Chem. C, 2019, 7, 4644
    DOI: 10.1039/C9TC00326F

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