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; 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 | |
发表期刊 | ACS NANO |
2017-12-01 | |
卷号 | 11期号:12页码:12337-12345 |
ISSN | 1936-0851 |
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 |
DOI | 10.1021/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 |
引用统计 | |
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.,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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