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A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
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Fully Stretchable Ionically Tunable Organic Electrochemical Transistors for Wearable Adaptive Logic Bioelectronics.

Heena Kim1, Taeheon Kim1, Yunsu Kim1

  • 1School of Electrical & Electronics Engineering, Pusan National University, Busan 46241, Republic of Korea.

ACS Nano
|June 24, 2026
PubMed
Summary

Researchers developed a dual-doped PEDOT/PSS composite for stretchable bioelectronics. This material enables ionically tunable logic and memory functions, with visual state readout via color changes, creating adaptive electronic systems.

Keywords:
ionically tunablelogic-modeorganic electrochemical transistorsstretchablesynaptic-modewearable adaptive logic bioelectronics

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Area of Science:

  • Materials Science
  • Bioelectronics
  • Organic Electronics

Background:

  • Next-generation bioelectronics require soft electronic systems with mechanical stretchability, functional adaptability, and intuitive state readout.
  • Existing systems often face limitations in integrating these diverse functionalities within a single architecture.

Purpose of the Study:

  • To demonstrate a novel dual-doped PEDOT/PSS composite as an adaptive electrochemical medium for stretchable bioelectronics.
  • To achieve ionic tunability for logic, memory, and optical visibility within a single device architecture.

Main Methods:

  • Developed a dual-doping strategy for PEDOT/PSS to enhance electrical stability and mechanical robustness.
  • Utilized ionic modulation within an organic electrochemical transistor (OECT) to control device function and induce electrochromism.
  • Explored electrolyte modulation to tune OECTs for logic and synaptic transistor applications.

Main Results:

  • The dual-doped PEDOT/PSS composite exhibited enhanced stability and robustness under deformation.
  • Ionic modulation enabled OECTs to function as logic gates (inverters, NAND, NOR) and synaptic transistors with long-term memory.
  • A reversible electrochromic transition provided concurrent visual display of the device's operational and memory states.

Conclusions:

  • Established an ionically tunable and visually interpretable platform for interactive soft bioelectronics.
  • Demonstrated the potential of this platform through mechano-electrochromic synaptic skins and wearable adaptive logic systems.
  • Highlighted the dual-doped PEDOT/PSS composite as a versatile material for advanced bioelectronic applications.