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All-Mxene Thermoelectric Nanogenerator

23 Pages Posted: 21 Jun 2022 Publication Status: Published

See all articles by Dazhen Huang

Dazhen Huang

King Abdullah University of Science and Technology (KAUST)

Hyunho Kim

King Abdullah University of Science and Technology (KAUST)

Guodong Zou

King Abdullah University of Science and Technology (KAUST)

Xiangming Xu

King Abdullah University of Science and Technology (KAUST)

Yunpei Zhu

King Abdullah University of Science and Technology (KAUST)

Kaleem Ahmad

King Saud University

Zeyad A. Almutairi

King Saud University

Husam N. Alshareef

King Abdullah University of Science and Technology (KAUST)

Abstract

MXenes have been widely investigated in energy storage, electromagnetic interference shielding, sensing, electronic, and photonic applications.  Some MXenes have been predicted to have outstanding thermoelectric (TE) properties, but relevant explorations are very limited. Herein, the TE performance of Mo2TiC2Tx and Nb2CTx MXenes are carefully controlled into n- and p-type, respectively, by organic molecule intercalation and thermal treatment. Optimized Mo2TiC2Tx and Nb2CTx MXenes show thermoelectric power factor (PF) of 13.26 and 11.06 µW m-1 K-2 at room temperature, respectively. Combing Ti3C2Tx MXene as a contact electrode owing to its high electrical conductivity (up to 8000 S cm-1 in this study), we have successfully designed and fabricated all-MXene flexible and integrated TE nanogenerators. The MXene TE nanogenerator was fabricated using 20 p-n units and could produce an output voltage and power of 35.3 mV and 33.9 nW, respectively, under a temperature difference of 30 °C. Although this performance is below classical thermoelectric materials, it is comparable to other solution-processed 2D materials, being developed for nanogenerators applications.

Keywords: MXene, n-type, p-type, thermoelectric nanogenerator, intercalation

Suggested Citation

Huang, Dazhen and Kim, Hyunho and Zou, Guodong and Xu, Xiangming and Zhu, Yunpei and Ahmad, Kaleem and Almutairi, Zeyad A. and Alshareef, Husam N., All-Mxene Thermoelectric Nanogenerator. Available at SSRN: https://ssrn.com/abstract=4142113 or http://dx.doi.org/10.2139/ssrn.4142113

Dazhen Huang

King Abdullah University of Science and Technology (KAUST) ( email )

Thuwal 23955- 6900
Thuwal, 4700
Saudi Arabia

Hyunho Kim

King Abdullah University of Science and Technology (KAUST) ( email )

Thuwal 23955- 6900
Thuwal, 4700
Saudi Arabia

Guodong Zou

King Abdullah University of Science and Technology (KAUST) ( email )

Thuwal 23955- 6900
Thuwal, 4700
Saudi Arabia

Xiangming Xu

King Abdullah University of Science and Technology (KAUST) ( email )

Thuwal 23955- 6900
Thuwal, 4700
Saudi Arabia

Yunpei Zhu

King Abdullah University of Science and Technology (KAUST) ( email )

Thuwal 23955- 6900
Thuwal, 4700
Saudi Arabia

Kaleem Ahmad

King Saud University ( email )

P.O. Box 2460
Riyadh, 11451
Saudi Arabia

Zeyad A. Almutairi

King Saud University ( email )

P.O. Box 2460
Riyadh, 11451
Saudi Arabia

Husam N. Alshareef (Contact Author)

King Abdullah University of Science and Technology (KAUST) ( email )

Thuwal 23955- 6900
Thuwal, 4700
Saudi Arabia

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