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Thin-Film Thermoelectric Generators Comprising Molybdenum-Based MXenes pn Modules

Authors
Park, TaehoCho, KyoungahKim, Sangsig
Issue Date
11월-2021
Publisher
WILEY
Keywords
2D materials; MXene thin films; pn modules; thermal conductivities; thin film thermoelectric generators
Citation
ADVANCED MATERIALS TECHNOLOGIES, v.6, no.11
Indexed
SCIE
SCOPUS
Journal Title
ADVANCED MATERIALS TECHNOLOGIES
Volume
6
Number
11
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/136681
DOI
10.1002/admt.202100590
ISSN
2365-709X
Abstract
In this study, the thermoelectric characteristics of spin-coated p-Mo2C and n-Mo2Ti2C3 thin films and the scalability of MXene thin-film thermoelectric generators (TFTEGs) constructed with pn modules are investigated. The in-plane thermal conductivities are measured at room temperature to be 0.37 and 0.45 W (m K)(-1) for the p-Mo2C and n-Mo2Ti2C3 thin films, respectively. The dimensionless figures of merit ZT are determined to be 1.7 x 10(-5) and 2.6 x 10(-4) for the p-Mo2C and n-Mo2Ti2C3 thin films, respectively. The scalability of the MXene TFTEG is evaluated by the Seebeck voltage being directly proportional to the number of pn modules. The MXene TFTEG constructed with 200-pn modules generates a Seebeck voltage of 399.9 mV and an output power of 6 mW cm(-2) at a Delta T of 5.4 K.
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공과대학 (전기전자공학부)
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