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Wrinkle-Free Single-Crystal Graphene Wafer Grown on Strain-Engineered Substrates
Deng B; Pang ZQ(庞震乾); Chen SL; Li X; Meng CX; Li JY; Liu MX; Wu JX; Qi Y; Dang WH; Yang H; Zhang YF; Zhang J; Kang N; Xu HQ; Fu Q; Qiu XH; Gao P; Wei YJ(魏宇杰); Liu ZF; Peng HL
2017-12-01
发表期刊ACS NANO
卷号11期号:12页码:12337-12345
ISSN1936-0851
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.

关键词Graphene Wrinkle Ultraflat Strain Engineering Single Crystal Thermal Mismatch
DOI10.1021/acsnano.7b06196
收录类别SCI ; EI
语种英语
WOS记录号WOS:000418990200060
关键词[WOS]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
WOS类目Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
项目资助者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)
课题组名称LNM微结构计算力学
论文分区一类
力学所作者排名1
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/72252
专题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.,Pang ZQ.,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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