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Length-dependent thermal conductivity in suspended single-layer graphene
Alternative TitleNat. Commun.
Xu, Xiangfan1,2,3; Pereira, Luiz F. C.4; Wang, Yu5; Wu, Jing1,2; Zhang, Kaiwen1,2,6; Zhao, Xiangming1,2,6; Bae, Sukang7,8; Cong Tinh Bui9; Xie, Rongguo1,6,10; Thong, John T. L.9,10; Hong, Byung Hee11; Loh, Kian Ping2,9,12; Donadio, Davide4; Li, Baowen1,2,6,9; Oezyilmaz, Barbaros1,2,3,9
2014-04-01
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume5Issue:3689Pages:6
AbstractGraphene exhibits extraordinary electronic and mechanical properties, and extremely high thermal conductivity. Being a very stable atomically thick membrane that can be suspended between two leads, graphene provides a perfect test platform for studying thermal conductivity in two-dimensional systems, which is of primary importance for phonon transport in low-dimensional materials. Here we report experimental measurements and nonequilibrium molecular dynamics simulations of thermal conduction in suspended single-layer graphene as a function of both temperature and sample length. Interestingly and in contrast to bulk materials, at 300 K, thermal conductivity keeps increasing and remains logarithmically divergent with sample length even for sample lengths much larger than the average phonon mean free path. This result is a consequence of the two-dimensional nature of phonons in graphene, and provides fundamental understanding of thermal transport in two-dimensional materials.; Graphene exhibits extraordinary electronic and mechanical properties, and extremely high thermal conductivity. Being a very stable atomically thick membrane that can be suspended between two leads, graphene provides a perfect test platform for studying thermal conductivity in two-dimensional systems, which is of primary importance for phonon transport in low-dimensional materials. Here we report experimental measurements and nonequilibrium molecular dynamics simulations of thermal conduction in suspended single-layer graphene as a function of both temperature and sample length. Interestingly and in contrast to bulk materials, at 300 K, thermal conductivity keeps increasing and remains logarithmically divergent with sample length even for sample lengths much larger than the average phonon mean free path. This result is a consequence of the two-dimensional nature of phonons in graphene, and provides fundamental understanding of thermal transport in two-dimensional materials.
KeywordSize Dependence Heat-transport Films Crossover Lattices Ribbons
SubtypeArticle
WOS HeadingsScience & Technology
DOI10.1038/ncomms4689
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSIZE DEPENDENCE ; HEAT-TRANSPORT ; FILMS ; CROSSOVER ; LATTICES ; RIBBONS
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000335222000005
Citation statistics
Cited Times:395[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11001
Collection研究所(批量导入)
Affiliation1.Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
2.Natl Univ Singapore, Graphene Res Ctr, Singapore 117542, Singapore
3.Natl Univ Singapore, NanoCore, Singapore 117576, Singapore
4.Max Planck Inst Polymer Res, D-55128 Mainz, Germany
5.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
6.Natl Univ Singapore, Ctr Computat Sci & Engn, Singapore 117542, Singapore
7.Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol SAINT, Suwon 440746, South Korea
8.Sungkyunkwan Univ, Ctr Human Interface Nano Technol HINT, Suwon 440746, South Korea
9.NUS Grad Sch Integrat Sci & Engn, Singapore 117456, Singapore
10.Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
11.Seoul Natl Univ, Dept Chem, Seoul 152742, South Korea
12.Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
Recommended Citation
GB/T 7714
Xu, Xiangfan,Pereira, Luiz F. C.,Wang, Yu,et al. Length-dependent thermal conductivity in suspended single-layer graphene[J]. NATURE COMMUNICATIONS,2014,5(3689):6.
APA Xu, Xiangfan.,Pereira, Luiz F. C..,Wang, Yu.,Wu, Jing.,Zhang, Kaiwen.,...&Oezyilmaz, Barbaros.(2014).Length-dependent thermal conductivity in suspended single-layer graphene.NATURE COMMUNICATIONS,5(3689),6.
MLA Xu, Xiangfan,et al."Length-dependent thermal conductivity in suspended single-layer graphene".NATURE COMMUNICATIONS 5.3689(2014):6.
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