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AIE-Active Polyamide Containing Diphenylamine-TPE Moiety with Superior Electrofluorochromic Performance
Ningwei Sun1, Kaixin Su1, Ziwei Zhou2
1Key Laboratory of High Performance Plastics (Jilin University), Ministry of Education, National & Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer, College of Chemistry , Jilin University , Changchun 130012 , PR China.
ACS Applied Materials & Interfaces
|April 20, 2018
Summary
Researchers developed a novel polymer for electrofluorochromism, achieving high solid-state fluorescence and stable switching. A porous version significantly improved response times for advanced optoelectronic and sensing applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Optoelectronics
Background:
- Electrofluorochromism is crucial for intelligent optoelectronic and sensing devices.
- Developing switchable fluorophores with high solid-state fluorescence is key for advanced materials.
Purpose of the Study:
- To report a novel aggregation-induced emission (AIE)-active polyamide for electrofluorochromic applications.
- To enhance electrofluorochromic performance, particularly response time, through material design.
Main Methods:
- Synthesis of an AIE-active polyamide incorporating diphenylamine and tetraphenylethylene units.
- Fabrication of a porous polymer film to improve surface area and response characteristics.
Main Results:
- The synthesized polyamide exhibited a high solid-state fluorescence quantum yield (up to 69.1%) and stable electrochemical cycling.
- Reversible color and emission switching were observed over hundreds of cycles with a high on/off contrast ratio (up to 417).
- The porous polymer film demonstrated significantly improved response times while maintaining high fluorescence contrast and stability.
Conclusions:
- AIE-functionalization combined with a porous structure strategy synergistically enhances electrofluorochromic performance.
- The developed materials show great potential for practical applications in intelligent optoelectronics and sensing.
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