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

Taeho Park, Kyoungah Cho, Sangsig Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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 × 10−5 and 2.6 × 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 ΔT of 5.4 K.

Original languageEnglish
Article number2100590
JournalAdvanced Materials Technologies
Volume6
Issue number11
DOIs
Publication statusPublished - 2021 Nov

Keywords

  • 2D materials
  • MXene thin films
  • pn modules
  • thermal conductivities
  • thin film thermoelectric generators

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

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