首页|Ultrafast epitaxial growth of metre-sized single-crystal graphene on industrial Cu foil

Ultrafast epitaxial growth of metre-sized single-crystal graphene on industrial Cu foil

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A foundation of the modem technology that uses single-crystal silicon has been the growth of highquality single-crystal Si ingots with diameters up to 12 inches or larger.For many applications of graphene,large-area high-quality (ideally of single-crystal) material will be enabling.Since the first growth on copper foil a decade ago,inch-sized single-crystal graphene has been achieved.We present here the growth,in 20 min,of a graphene film of (5 x 50) cm2 dimension with ＞99％ ultra-highly oriented grains.This growth was achieved by:(1) synthesis of metre-sized single-crystal Cu(1 1 1) foil as substrate;(2) epitaxial growth of graphene islands on the Cu(1 1 1) surface;(3) seamless merging of such graphene islands into a graphene film with high single crystallinity and (4) the ultrafast growth of graphene film.These achievements were realized by a temperature-gradient-driven annealing technique to produce single-crystal Cu(1 1 1) from industrial polycrystalline Cu foil and the marvellous effects of a continuous oxygen supply from an adjacent oxide.The as-synthesized graphene film,with very few misoriented grains (if any),has a mobility up to ～23,000 cm2 V-1 S-1 at 4 K and room temperature sheet resistance of ～230 Ω/□.It is very likely that this approach can be scaled up to achieve exceptionally large and high-quality graphene films with single crystallinity,and thus realize various industrial-level applications at a low cost.

Single-crystalIndustrial CuGrapheneUltra fastEpitaxial

Xiaozhi Xu、Zhihong Zhang、Jichen Dong、Ding Yi、Jingjing Niu、Muhong Wu、Li Lin、Rongkang Yin、Mingqiang Li、Jingyuan Zhou、Shaoxin Wang、Junliang Sun、Xiaojie Duan、Peng Gao、Ying Jiang、Xiaosong Wu、Hailin Peng、Rodney S.Ruoff、Zhongfan Liu、Dapeng Yu、Enge Wang、Feng Ding、Kaihui Liu

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State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China

Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China

Center for Multidimensional Carbon Materials(CMCM), Institute for Basic Science(IBS), Ulsan 689-798, Republic of Korea

Centre for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China

College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Collaborative Innovation Centre of Quantum Matter, Beijing 100871, China

International Centre for Quantum Materials, Peking University, Beijing 100871, China

Department of Chemistry, Ulsan National Institute of Science and Technology(UNIST), Ulsan 689-798, Republic of Korea

10Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China

11School of Materials Science and Engineering, Ulsan National Institute of Science and Technology(UNIST), Ulsan 689-798, Republic of Korea

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This work was supported by National Key R&D Program of ChinaThis work was supported by National Key R&D Program of ChinaThis work was supported by National Key R&D Program of ChinaThis work was supported by National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaPostdoctoral Innovative Personnel Support ProgramNational Program for Thousand Young Talents of China and the Institute for Basic Science

2016YFA03009032016YFA03008022014CB9325002016YFA020010151522201114740061132790211234001215253109143310221573186BX201700014IBS-R019-D1

2017

科学通报(英文版)
中国科学院

科学通报(英文版)

EI
ISSN：1001-6538
年,卷(期)：2017.62(15)
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