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Updated: Aug 12, 2025
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A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
Published on: March 13, 2017
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All-printed and stretchable organic electrochemical transistors using a hydrogel electrolyte
Chi-Hyeong Kim1, Mona Azimi1, Jiaxin Fan1
1Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec H3C 3A7, Canada.
Nanoscale
|February 1, 2023
Summary
Fully stretchable organic electrochemical transistors (OECTs) were fabricated using all-printed components. These stretchable OECTs demonstrate stable performance and are suitable for advanced wearable electronics.
Area of Science:
- Materials Science
- Electronics Engineering
- Bioelectronics
Background:
- Stretchable electronic devices are crucial for wearable applications.
- Solution-processable conducting materials offer versatile fabrication options.
- Organic electrochemical transistors (OECTs) are key components in bioelectronic systems.
Purpose of the Study:
- To fabricate fully stretchable OECTs using printing techniques.
- To achieve body-wide stretchability in OECTs for wearable applications.
- To evaluate the performance and stability of printed stretchable OECTs.
Main Methods:
- Fabrication of OECTs with all components printed.
- Utilization of a printed planar gate electrode and polyvinyl alcohol (PVA) hydrogel electrolyte.
- Employing stretchable silver paste for electrodes and interconnects.
Main Results:
- Achieved comparable performance to traditional inkjet or screen-printed OECTs.
- Maximum transconductance of 1.04 ± 0.13 mS and an on/off ratio of 830.
- Demonstrated device stability for 50 days and up to 110% tensile strain.
Conclusions:
- All-printed, stretchable OECTs are feasible for wearable bioelectronics.
- The developed fabrication method enables robust and high-performing stretchable transistors.
- This work advances the development of advanced, mechanically robust wearable electronic devices.
