Robust PEDOT:PSS Wet‐Spun Fibers for Thermoelectric Textiles
Journal article, 2020

To realize thermoelectric textiles that can convert body heat to electricity, fibers with excellent mechanical and thermoelectric properties are needed. Although poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is among the most promising organic thermoelectric materials, reports that explore its use for thermoelectric fibers are all but absent. Herein, the mechanical and thermoelectric properties of wet‐spun PEDOT:PSS fibers are reported, and their use in energy‐harvesting textiles is discussed. Wet‐spinning into sulfuric acid results in water‐stable semicrystalline fibers with a Young's modulus of up to 1.9 GPa, an electrical conductivity of 830 S cm−1, and a thermoelectric power factor of 30 μV m−1 K−2. Stretching beyond the yield point as well as repeated tensile deformation and bending leave the electrical properties of these fibers almost unaffected. The mechanical robustness/durability and excellent underwater stability of semicrystalline PEDOT:PSS fibers, combined with a promising thermoelectric performance, opens up their use in practical energy‐harvesting textiles, as illustrated by an embroidered thermoelectric fabric module.

PEDOT

Author

Youngseok Kim

Gwangju Institute of Science and Technology

Anja Lund

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Hyebin Noh

Gwangju Institute of Science and Technology

Anna Hofmann

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Mariavittoria Craighero

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Sozan Darabi

Wallenberg Wood Science Center (WWSC)

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Sepideh Zokaei

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Jae Il Park

Gwangju Institute of Science and Technology

Myung-Han Yoon

Gwangju Institute of Science and Technology

Christian Müller

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Wallenberg Wood Science Center (WWSC)

Macromolecular Materials and Engineering

1438-7492 (ISSN) 1439-2054 (eISSN)

Vol. 305 3 1900749- 1900749

Subject Categories

Polymer Chemistry

Manufacturing, Surface and Joining Technology

Materials Chemistry

DOI

10.1002/mame.201900749

More information

Latest update

4/5/2022 7