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Paper Thermoelectrics by a Solvent-Free Drawing Method of All Carbon-Based Materials / Saqib Rafique, Nafiseh Badiei, Matthew Burton, Jorge Eduardo Gonzalez-Feijoo, Matt Carnie, Afshin Tarat, Lijie Li

ACS Omega, Volume: 6, Issue: 7, Pages: 5019 - 5026

Swansea University Authors: Saqib Rafique, Nafiseh Badiei, Matthew Burton, Matt Carnie, Lijie Li

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Abstract

As practical interest in the flexible or wearable thermoelectric generators (TEGs) has increased, the demand for the high-performance TEGs based on ecofriendly, mechanically resilient, and economically viable TEGs as alternatives to the brittle inorganic materials is growing. Organic or hybrid therm...

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Published in: ACS Omega
ISSN: 2470-1343 2470-1343
Published: American Chemical Society (ACS) 2021
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa56231
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Abstract: As practical interest in the flexible or wearable thermoelectric generators (TEGs) has increased, the demand for the high-performance TEGs based on ecofriendly, mechanically resilient, and economically viable TEGs as alternatives to the brittle inorganic materials is growing. Organic or hybrid thermoelectric (TE) materials have been employed in flexible TEGs; however, their fabrication is normally carried out using wet processing such as spin-coating or screen printing. These techniques require materials dissolved or dispersed in solvents; thus, they limit the substrate choice. Herein, we have rationally designed solvent-free, all carbon-based TEGs dry-drawn on a regular office paper using few-layered graphene (FLG). This technique showed very good TE parameters, yielding a power factor of 97 μW m–1 K–2 at low temperatures. The p-type only device exhibited an output power of up to ∼19.48 nW. As a proof of concept, all carbon-based p-n TEGs were created on paper with the addition of HB pencil traces. The HB pencil exhibited low Seebeck coefficients (−7 μV K–1), and the traces were highly resistive compared to FLG traces, which resulted in significantly lower output power compared to the p-type only TEG. The demonstration of all carbon-based TEGs drawn on paper highlights the potential for future low-cost, flexible, and almost instantaneously created TEGs for low-power applications.
College: College of Engineering
Issue: 7
Start Page: 5019
End Page: 5026