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- 1900749Subject Categories
Polymer Chemistry
Manufacturing, Surface and Joining Technology
Materials Chemistry
DOI
10.1002/mame.201900749