Thermoelectric characteristics of flexible reduced graphene oxide/silver selenide nanowire composites prepared by a facile vacuum filtration process

doi:10.1088/1674-1056/ac447e

Abstract The reduced graphene oxide/silver selenide nanowire (rGO/Ag₂Se NW) composite powders were fabricated via a wet chemical approach, and then flexible rGO/Ag₂Se NW composite film was prepared by a facile vacuum filtration method combined with cold-pressing treatment. A highest power factor of 228.88 μW·m^-1·K^-2 was obtained at 331 K for the cold-pressed rGO/Ag₂Se NW composite film with 0.01 wt% rGO. The rGO/Ag₂Se NW composite film revealed superior flexibility as the power factor retained 94.62% after bending for 500 times with a bending radius of 4 mm, which might be due to the interwoven network structures of Ag₂Se NWs and pliability of rGO as well as nylon membrane. These results demonstrated that the GO/Ag₂Se NW composite film has a potential for preparation of flexible thermoelectric devices.

Keywords: thermoelectric silver selenide reduced graphene oxide flexibility

Received: 11 October 2021
Revised: 01 December 2021
Accepted manuscript online: 18 December 2021

PACS:	81.07.Gf	(Nanowires)
	81.05.ue	(Graphene)

Fund: Project supported by the Program for Professor of Special Appointment at Shanghai Institutions of Higher Learning (Grant No. TP2020068), Shanghai Innovation Action Plan Project (Grant No. 17090503600), and Shanghai Sailing Program (Grant No. 20YF1447300).

Corresponding Authors: Yong Du, Qiufeng Meng
E-mail: ydu@sit.edu.cn;mengqiufeng@sit.edu.cn

Cite this article:

Zuo Xiao(肖佐), Yong Du(杜永), Qiufeng Meng(孟秋风), and Lei Wang(王磊) Thermoelectric characteristics of flexible reduced graphene oxide/silver selenide nanowire composites prepared by a facile vacuum filtration process 2022 Chin. Phys. B 31 028103

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Thermoelectric characteristics of flexible reduced graphene oxide/silver selenide nanowire composites prepared by a facile vacuum filtration process

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