Thermoelectric properties and performance of flexible reduced graphene oxide films up to 3,000 K

Tian Li, Andrea D. Pickel, Yonggang Yao, Yanan Chen, Yuqiang Zeng, Steven D. Lacey, Yiju Li, Yilin Wang, Jiaqi Dai, Yanbin Wang, Bao Yang, Michael S. Fuhrer, Amy Marconnet, Chris Dames, Dennis H. Drew () and Liangbing Hu ()
Additional contact information
Tian Li: University of Maryland College Park
Andrea D. Pickel: University of Berkeley
Yonggang Yao: University of Maryland College Park
Yanan Chen: University of Maryland College Park
Yuqiang Zeng: Purdue University
Steven D. Lacey: University of Maryland College Park
Yiju Li: University of Maryland College Park
Yilin Wang: University of Maryland College Park
Jiaqi Dai: University of Maryland College Park
Yanbin Wang: University of Maryland College Park
Bao Yang: University of Maryland College Park
Michael S. Fuhrer: Monash University
Amy Marconnet: Purdue University
Chris Dames: University of Berkeley
Dennis H. Drew: University of Maryland College Park
Liangbing Hu: University of Maryland College Park

Nature Energy, 2018, vol. 3, issue 2, 148-156

Abstract: Abstract The development of ultrahigh-temperature thermoelectric materials could enable thermoelectric topping of combustion power cycles as well as extending the range of direct thermoelectric power generation in concentrated solar power. However, thermoelectric operation temperatures have been restricted to under 1,500 K due to the lack of suitable materials. Here, we demonstrate a thermoelectric conversion material based on high-temperature reduced graphene oxide nanosheets that can perform reliably up to 3,000 K. After a reduction treatment at 3,300 K, the nanosheet film exhibits an increased conductivity to ~4,000 S cm−1 at 3,000 K and a high power factor S2σ = 54.5 µW cm−1 K−2. We report measurements characterizing the film’s thermoelectric properties up to 3,000 K. The reduced graphene oxide film also exhibits a high broadband radiation absorbance and can act as both a radiative receiver and a thermoelectric generator. The printable, lightweight and flexible film is attractive for system integration and scalable manufacturing.

Date: 2018
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DOI: 10.1038/s41560-018-0086-3

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