Centimeter-Sized Monolayer CVD Graphene with High Power Factor for Scalable Thermoelectric Applications
Peer reviewed, Journal article
Published version
Permanent lenke
https://hdl.handle.net/11250/2999216Utgivelsesdato
2022Metadata
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Sammendrag
Among the many extraordinary qualities of graphene, its thermoelectric properties have attracted significant interest, for example, in active cooling applications. Here, we report on the thermoelectric transport properties of centimeter-sized monolayer CVD graphene, electrostatically controlled by a high-capacity ionic gel. The power factor reaches 7 and 5.4 mW m–1 K–2 for hole and electron conduction, respectively, similar to earlier reports obtained for microdevices despite our devices being over 2 orders of magnitude larger. On the basis of these results, we propose nonvolatile ferroelectric polarization as a scalable technology for graphene-based thermoelectric applications.