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Electrochromic Fabric Device Based on Lamellar Polyaniline through Inkjet Printing
Hongjie Xie1, Shuanghong Peng1, Xiangyu Huang1
1State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
Macromolecular Rapid Communications
|January 22, 2025
Summary
Researchers developed a new fabric-based flexible electrochromic device (FECD) using inkjet printing. This wearable device shows excellent electrochromic performance and durability after bending, highlighting its potential for smart clothing.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Flexible electrochromic devices (FECDs) are crucial for smart displays and wearables.
- Achieving both high electrochromic performance and flexibility simultaneously remains a significant challenge in the field.
Purpose of the Study:
- To design and fabricate a novel fabric-based FECD with enhanced flexibility and electrochromic properties.
- To explore the potential of inkjet printing for creating integrated flexible electronic devices.
Main Methods:
- Utilized inkjet printing to construct a "side-by-side" structured FECD on a fabric substrate.
- Employed well-dispersed polyaniline nanosheets as the electrochromic ink and a self-developed polyvinyl alcohol-based semi-solid electrolyte.
Main Results:
- The developed FECD demonstrated a significant reflectivity change of 22.9%.
- The device maintained its electrochromic functionality after enduring 1000 bending cycles, showcasing excellent mechanical stability.
Conclusions:
- The fabric-based FECD exhibits promising electrochromic performance and superior flexibility.
- This technology holds significant potential for applications in wearable smart clothing and flexible textile displays.
