Wrinkle-Free Single-Crystal Graphene Wafer Grown on Strain-Engineered Substrates
Deng B; Pang ZQ(庞振乾); Chen SL; Li X; Meng CX; Li JY; Liu MXi; Wu JX; Qi Y; Dang WHi
刊名ACS NANO
2017-12-01
卷号11期号:12页码:12337-12345
关键词Graphene Wrinkle Ultraflat Strain Engineering Single Crystal Thermal Mismatch
ISSN号1936-0851
DOI10.1021/acsnano.7b06196
文献子类Article
英文摘要

Wrinkles are ubiquitous for graphene films grown on various substrates by chemical vapor deposition at high temperature due to the strain induced by thermal mismatch between the graphene and substrates, which greatly degrades the extraordinary properties of graphene. Here we show that the wrinkle formation of graphene grown on Cu substrates is strongly dependent on the crystallographic orientations. Wrinkle-free single-crystal graphene was grown on a wafer-scale twin-boundary-free single-crystal Cu(111) thin film fabricated on sapphire substrate through strain engineering. The wrinkle-free feature of graphene originated from the relatively small thermal expansion of the Cu(111) thin film substrate and the relatively strong interfacial coupling between Cu(111) and graphene, based on the strain analyses as well as molecular dynamics simulations. Moreover, we demonstrated the transfer of an ultraflat graphene film onto target substrates from the reusable single-crystal Cu(111)/sapphire growth substrate. The wrinkle-free graphene shows enhanced electrical mobility compared to graphene with wrinkles.

分类号一类
WOS关键词Chemical-vapor-deposition ; Thermal-expansion ; Copper Foils ; Monolayer Graphene ; Raman-spectroscopy ; Layer Graphene ; Films ; Relaxation ; Cu ; Oxygen
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000418990200060
资助机构National Basic Research Program of China(2016YFA0200101 ; National Natural Science Foundation of China(51432002 ; Beijing Municipal Science & Technology Commission(Z161100002116002 ; Wenghongwu Keyan Yuanchuang jijin of Peking University(WHW201503) ; CAS-PKU Pioneer Cooperation Team ; Supercomputing Center of CAS ; 2014CB932500) ; 51520105003 ; Z161100002116021) ; 21525310 ; 11425211 ; 21603045 ; 51672007 ; 51502007)
内容类型期刊论文
源URL[http://dspace.imech.ac.cn/handle/311007/72252]  
专题力学研究所_非线性力学国家重点实验室
推荐引用方式
GB/T 7714
Deng B,Pang ZQ,Chen SL,et al. Wrinkle-Free Single-Crystal Graphene Wafer Grown on Strain-Engineered Substrates[J]. ACS NANO,2017,11(12):12337-12345.
APA Deng B.,庞振乾.,Chen SL.,Li X.,Meng CX.,...&Peng HL.(2017).Wrinkle-Free Single-Crystal Graphene Wafer Grown on Strain-Engineered Substrates.ACS NANO,11(12),12337-12345.
MLA Deng B,et al."Wrinkle-Free Single-Crystal Graphene Wafer Grown on Strain-Engineered Substrates".ACS NANO 11.12(2017):12337-12345.
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