Enhanced power factor in flexible reduced graphene oxide/nanowires hybrid films for thermoelectrics

Jie Gao, Chengyan Liu, Lei Miao, Xiaoyang Wang, Ying Peng, Yu Chen

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Highly-flexible thermoelectric hybrid films based on reduced graphene oxide (RGO) and tellurium nanowire (Te NW) layered structure are fabricated via vacuum filtration. The electrical conductivity and Seebeck coefficient of the optimized hybrid film can reach 978 S m-1 and 286 μV K-1, respectively, pushing the power factor (PF) value up to 80 μW (m K2)-1 at 40 °C, approximately 80 times larger than the pure Te NW film, possibly due to the combination of the high carrier concentration of RGO and high carrier mobility of Te NWs. Meanwhile, the transport characteristics of hybrid films were revealed by the measurements of electrical conductivity, Seebeck coefficient, and Hall effect. This article provides a possible access to high-performance and flexible TE films based on RGO sheets and inorganic semiconductors.

Original languageEnglish
Pages (from-to)31580-31587
Number of pages8
JournalRSC Advances
Volume6
Issue number38
DOIs
Publication statusPublished - 2016
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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