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Ionic Thermoelectric Paper
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Billerudkorsnäs AB, SE-71830 Frövi, Sweden.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Department of Physics and Astronomy, University of Kentucky, Lexington, KY40506-0055, USA.
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2017 (English)In: Journal of Materials Chemistry A, ISSN 2050-7488Article in journal (Refereed) Accepted
Abstract [en]

Ionic thermoelectric materials, such as polyelectrolyte like polystyrene sulfonate sodium (PSSNa), constitute a new class ofmaterial attracting interest due to their large Seebeck coefficient and the possibility to be used in ionic thermoelectricsupercapacitors (ITESCs) and field effect transistors. However pure polyelectrolyte membranes are not robust neitherflexible. In this article, we demonstrate the preparation of ionic thermoelectric paper by a simple, scalable and cost-effectivemethod. After composite with nanofibrillated cellulose (NFC), the resulting NFC-PSSNa paper is flexible and mechanicallyrobust; which is desirable of using roll-to-roll processes. The robust thermoelectric paper NFC-PSSNa combines high ionicconductivity (9 mS/cm), high ionic Seebeck coefficient (8.4 mV/K) and low thermal conductivity (0.75 Wm-1K-1) at 100 RH%,resulting in overall figure-of-merit of 0.025 at room temperature slightly better than the PSSNa. Enabling flexibility androbustness by compositing with cellulose constitutes an advance for scaling up the manufacturing of ionic thermoelectricsupercapacitors; but also enables new applications for conformable thermoelectric devices and flexible electronics

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2017.
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-139237DOI: 10.1039/c7ta03196cOAI: oai:DiVA.org:liu-139237DiVA: diva2:1120637
Available from: 2017-07-06 Created: 2017-07-06 Last updated: 2017-07-06

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Citation style
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