Work

Centimeter-Sized Monolayer CVD Graphene with High Power Factor for Scalable Thermoelectric Applications

Year: 2022

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide 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.

Source: ACS Applied Electronic Materials

DOI: 10.1021/acsaelm.1c00995

Authors: Matthias Schrade, Wen Xing, Knut Thorshaug, Branson D. Belle

Institution: SINTEF Industry

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $5,000