Cross-plane thermoelectric figure of merit in graphene - C60 heterostructures at room temperature

Daniel Olaya; Chien Chih Tseng; Wen-Hao Chang; Wen Pin Hsieh; Lain Jong Li; Zhen Yu Juang; Yenny Hernández

doi:10.1016/j.flatc.2019.100089

Cross-plane thermoelectric figure of merit in graphene - C₆₀ heterostructures at room temperature

Daniel Olaya, Chien Chih Tseng, Wen-Hao Chang, Wen Pin Hsieh, Lain Jong Li, Zhen Yu Juang^*, Yenny Hernández

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The quantum nature of low dimensional materials such as graphene and C ₆₀ is yet to be exploited in thermoelectric (TE) applications. A source of reproducible high-quality graphene is its growth by chemical vapour deposition (CVD) and subsequent transfer onto arbitrary substrates. In this work, heterostructures based on graphene and C ₆₀ clusters were studied by means of the Transient Harman Method (THM). This study revealed a thermoelectric figure of merit, ZT, up to 1.4. The efficiency of the measured devices is attributed to a decrease of the thermal conductivity due to the presence of the layers and a significant value of the Seebeck coefficient (up to 200 μV/K). This type of heterostructures could also be prepared on transparent flexible substrates with a measured ZT of 0.36.

Original language	English
Article number	100089
Pages (from-to)	1-5
Number of pages	5
Journal	FlatChem
Volume	14
DOIs	https://doi.org/10.1016/j.flatc.2019.100089
State	Published - Mar 2019

Keywords

C60 Fullerene
Graphene
Heterostructure
Layered material
Thermoelectric
Transient Harman Method

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10.1016/j.flatc.2019.100089

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title = "Cross-plane thermoelectric figure of merit in graphene - C60 heterostructures at room temperature",

abstract = " The quantum nature of low dimensional materials such as graphene and C 60 is yet to be exploited in thermoelectric (TE) applications. A source of reproducible high-quality graphene is its growth by chemical vapour deposition (CVD) and subsequent transfer onto arbitrary substrates. In this work, heterostructures based on graphene and C 60 clusters were studied by means of the Transient Harman Method (THM). This study revealed a thermoelectric figure of merit, ZT, up to 1.4. The efficiency of the measured devices is attributed to a decrease of the thermal conductivity due to the presence of the layers and a significant value of the Seebeck coefficient (up to 200 μV/K). This type of heterostructures could also be prepared on transparent flexible substrates with a measured ZT of 0.36.",

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AU - Olaya, Daniel

AU - Tseng, Chien Chih

AU - Chang, Wen-Hao

AU - Hsieh, Wen Pin

AU - Li, Lain Jong

AU - Juang, Zhen Yu

AU - Hernández, Yenny

PY - 2019/3

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AB - The quantum nature of low dimensional materials such as graphene and C 60 is yet to be exploited in thermoelectric (TE) applications. A source of reproducible high-quality graphene is its growth by chemical vapour deposition (CVD) and subsequent transfer onto arbitrary substrates. In this work, heterostructures based on graphene and C 60 clusters were studied by means of the Transient Harman Method (THM). This study revealed a thermoelectric figure of merit, ZT, up to 1.4. The efficiency of the measured devices is attributed to a decrease of the thermal conductivity due to the presence of the layers and a significant value of the Seebeck coefficient (up to 200 μV/K). This type of heterostructures could also be prepared on transparent flexible substrates with a measured ZT of 0.36.

KW - C60 Fullerene

KW - Graphene

KW - Heterostructure

KW - Layered material

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KW - Transient Harman Method

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Cross-plane thermoelectric figure of merit in graphene - C₆₀ heterostructures at room temperature

Abstract

Keywords

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