Green Conducting Cellulose Yarns for Machine-Sewn Electronic Textiles
Journal article, 2020

The emergence of "green"electronics is a response to the pressing global situation where conventional electronics contribute to resource depletion and a global build-up of waste. For wearable applications, green electronic textile (e-textile) materials present an opportunity to unobtrusively incorporate sensing, energy harvesting, and other functionality into the clothes we wear. Here, we demonstrate electrically conducting wood-based yarns produced by a roll-to-roll coating process with an ink based on the biocompatible polymer:polyelectrolyte complex poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS). The developed e-textile yarns display a, for cellulose yarns, record-high bulk conductivity of 36 Scm-1, which could be further increased to 181 Scm-1 by adding silver nanowires. The PEDOT:PSS-coated yarn could be machine washed at least five times without loss in conductivity. We demonstrate the electrochemical functionality of the yarn through incorporation into organic electrochemical transistors (OECTs). Moreover, by using a household sewing machine, we have manufactured an out-of-plane thermoelectric textile device, which can produce 0.2 μW at a temperature gradient of 37 K.


organic electrochemical transistor (OECT)


conducting cellulose yarn

organic thermoelectrics


Sozan Darabi

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Christian Müller Group

Wallenberg Wood Science Center (WWSC)

Michael Hummel

Aalto University

Sami Rantasalo

Aalto University

Marja Rissanen

Aalto University

Ingrid Öberg Månsson

Royal Institute of Technology (KTH)

Haike Hilke

University of Borås

Byungil Hwang

Chung-Ang University

Mikael Skrifvars

University of Borås

Mahiar M. Hamedi

Royal Institute of Technology (KTH)

Herbert Sixta

Aalto University

Anja Lund

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Christian Müller

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Christian Müller Group

ACS Applied Materials & Interfaces

1944-8244 (ISSN) 1944-8252 (eISSN)

Vol. 12 50 56403-56412

Woven and 3D-Printed Thermoelectric Textiles (ThermoTex)

European Research Council (ERC), 2015-06-01 -- 2020-06-30.

Subject Categories

Textile, Rubber and Polymeric Materials

Materials Chemistry

Condensed Matter Physics





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