Layer-by-Layer Assembled Flexible MXene/TiS2 Composite Films for Thermoelectric Applications

Zhihong Chen; Na Li; Wendi Zhao; Mengting Liu; Zuzhi Bai; Congcong Liu; Peipei Liu; Fengxing Jiang; Jingkun Xu; Qinglin Jiang

doi:10.34133/energymatadv.0102

Energy Material Advances (Jan 2024)

Layer-by-Layer Assembled Flexible MXene/TiS2 Composite Films for Thermoelectric Applications

Zhihong Chen,
Na Li,
Wendi Zhao,
Mengting Liu,
Zuzhi Bai,
Congcong Liu,
Peipei Liu,
Fengxing Jiang,
Jingkun Xu,
Qinglin Jiang

Affiliations

Zhihong Chen: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Na Li: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Wendi Zhao: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Mengting Liu: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Zuzhi Bai: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Congcong Liu: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Peipei Liu: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Fengxing Jiang: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Jingkun Xu: Jiangxi Province Key Laboratory of Flexible Electronics, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
Qinglin Jiang: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.

DOI: https://doi.org/10.34133/energymatadv.0102
Journal volume & issue: Vol. 5

Abstract

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MXene has great potential in the application of thermoelectric materials due to its high conductivity, but its application in this field is limited by the low Seebeck coefficient. In this work, a laminated composite film with a regular 2-dimensional heterogeneous interface was constructed by using 2-dimensional MXene and TiS2. The results show that the sandwich structure composite film has a high Seebeck coefficient (−80.4 μV K−1) while maintaining a high electrical conductivity (322.12 S cm−1). The power factor of the sandwich structure film is higher than that of the disordered structure film, which is 22 times that of the Ti3C2Tx film. The simple flexible device prepared by MTM film has an ideal power density (26.6 W m−2) at a temperature difference of 70 K. This work provides strong evidence and feasible reference for optimizing and improving the thermoelectric properties of MXene-based materials by using high-quality heterostructures.

Published in Energy Material Advances

ISSN: 2692-7640 (Online)
Publisher: American Association for the Advancement of Science (AAAS)
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Mechanical engineering and machinery: Renewable energy sources
Website: https://spj.sciencemag.org/journals/energymatadv/

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