Green Conducting Cellulose Yarns for Machine-Sewn Electronic Textiles
Artikel i vetenskaplig tidskrift, 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.

e-textile

organic electrochemical transistor (OECT)

PEDOT:PSS

conducting cellulose yarn

organic thermoelectrics

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Publicerad i

ACS Applied Materials & Interfaces

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

Vol. 12 Nummer/häfte 50 s. 56403-56412

Forskningsprojekt

Woven and 3D-Printed Thermoelectric Textiles (ThermoTex)

Europeiska forskningsrådet (ERC) (637624), 2015-06-01 -- 2020-06-30.

Kategorisering

Ämneskategorier (SSIF 2011)

Textil-, gummi- och polymermaterial

Materialkemi

Den kondenserade materiens fysik

Identifikatorer

DOI

10.1021/acsami.0c15399

PubMed

33284024

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Senast uppdaterat

2021-01-08