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

doi:10.1039/c6ra00916f

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 journal › Article › peer-review

32 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 language	English
Pages (from-to)	31580-31587
Number of pages	8
Journal	RSC Advances
Volume	6
Issue number	38
DOIs	https://doi.org/10.1039/c6ra00916f
Publication status	Published - 2016
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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title = "Enhanced power factor in flexible reduced graphene oxide/nanowires hybrid films for thermoelectrics",

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.",

author = "Jie Gao and Chengyan Liu and Lei Miao and Xiaoyang Wang and Ying Peng and Yu Chen",

note = "Funding Information: This work was supported by National Natural Science Foundation of China (Grant No. 51572049, 51562005) and Guangxi Natural Science Foundation of China (Grant No. 2015GXNSFFA139002). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "2016",

doi = "10.1039/c6ra00916f",

language = "English",

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T1 - Enhanced power factor in flexible reduced graphene oxide/nanowires hybrid films for thermoelectrics

AU - Gao, Jie

AU - Liu, Chengyan

AU - Miao, Lei

AU - Wang, Xiaoyang

AU - Peng, Ying

AU - Chen, Yu

N1 - Funding Information: This work was supported by National Natural Science Foundation of China (Grant No. 51572049, 51562005) and Guangxi Natural Science Foundation of China (Grant No. 2015GXNSFFA139002). Publisher Copyright: © The Royal Society of Chemistry 2016. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

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

Abstract

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