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다차원 탄소재료 연구단
다차원 탄소재료 연구단
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Thermal conductivity reduction in three dimensional graphene-based nanofoam

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Title
Thermal conductivity reduction in three dimensional graphene-based nanofoam
Author(s)
Thiyagarajan, P.; Yan, Z.; Jong-Chul Yoon; Oh, M.-W.; Ji-Hyun Jang
Publication Date
2015
Journal
RSC ADVANCES, v.5, no.120, pp.99394 - 99397
Publisher
ROYAL SOC CHEMISTRY
Abstract
This work investigates the thermoelectric properties of a three dimensional nanofoam of few layer graphene (3D-NFG) decorated with holes having diameter of several tens of nanometer. The nanoporous 3D graphene structures were fabricated by a chemical vapor deposition method to ensure high electrical conductivity required for potential applications as thermoelectric materials. The thermal conductivity of the suspended 3D-NFG samples was measured by an optothermal method and found to be 10.8 W m-1 K-1. The substantially reduced values of thermal conductivity were attributed to the small diameter of the pores and their inhomogeneous distribution. Suppression of heat conduction with preserved electrical conductivity is beneficial for the proposed thermoelectric applications. © 2015 The Royal Society of Chemistry
URI
https://pr.ibs.re.kr/handle/8788114/2366
ISSN
2046-2069
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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