Towards super-clean graphene

被引：194

作者：

Lin, Li ^{[1
]}

Zhang, Jincan ^{[1
,2
]}

Su, Haisheng ^{[3
,4
]}

Li, Jiayu ^{[2
,5
,6
,7
]}

Sun, Luzhao ^{[1
,2
]}

Wang, Zihao ^{[8
]}

Xu, Fan ^{[9
]}

Liu, Chang ^{[9
]}

Lopatin, Sergei ^{[10
]}

Zhu, Yihan ^{[11
]}

Jia, Kaicheng ^{[1
]}

Chen, Shulin ^{[12
,13
]}

Rui, Dingran ^{[5
,6
]}

Sun, Jingyu ^{[14
,15
]}

Xue, Ruiwen ^{[16
]}

Gao, Peng ^{[17
]}

Kang, Ning ^{[5
,6
]}

Han, Yu ^{[11
]}

Xu, H. Q. ^{[5
,6
]}

Cao, Yang ^{[3
,4
]}

Novoselov, K. S. ^{[8
]}

Tian, Zhongqun ^{[3
,4
]}

Ren, Bin ^{[3
,4
]}

Peng, Hailin ^{[1
,18
]}

Liu, Zhongfan ^{[1
,18
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing Sci & Engn Ctr Nanocarbons, Ctr Nanochem,Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China

[2] Peking Univ, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China

[3] Xiamen Univ, Coll Chem & Chem Engn, Collaborat Innovat Ctr Chem Energy Mat iChEM, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[4] Xiamen Univ, Coll Chem & Chem Engn, MOE Key Lab Spectrochem Anal & Instrumentat, Dept Chem, Xiamen 361005, Peoples R China

[5] Peking Univ, Beijing Key Lab Quantum Devices, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China

[6] Peking Univ, Dept Elect, Beijing 100871, Peoples R China

[7] China Fortune Land Dev Ind Investment Co Ltd Beij, Beijing, Peoples R China

[8] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England

[9] Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China

[10] King Abdullah Univ Sci & Technol, Imaging & Characterizat Core Lab, Thuwal 239556900, Saudi Arabia

[11] King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia

[12] Peking Univ, Sch Phys, Electron Microscopy Lab, Beijing 100871, Peoples R China

[13] Peking Univ, Sch Phys, Int Ctr Quantum Mat, Beijing 100871, Peoples R China

[14] Soochow Univ, Coll Phys Optoelect & Energy, Soochow Inst Energy & Mat Innovat SIEMIS, Suzhou 215006, Peoples R China

[15] Soochow Univ, Jiangsu Prov Key Lab Adv Carbon Mat & Wearable En, Suzhou 215006, Peoples R China

[16] Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Clear Water Bay, Hong Kong, Peoples R China

[17] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

[18] Beijing Graphene Inst, Beijing 100095, Peoples R China

来源：

NATURE COMMUNICATIONS | 2019年 / 10卷 / 1期

基金：

中国国家自然科学基金;

关键词：

SINGLE-CRYSTAL GRAPHENE; LAYER; TRANSPORT; HETEROSTRUCTURES; LIMITS; FILMS;

D O I：

10.1038/s41467-019-09565-4

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Impurities produced during the synthesis process of a material pose detrimental impacts upon the intrinsic properties and device performances of the as-obtained product. This effect is especially pronounced in graphene, where surface contamination has long been a critical, unresolved issue, given graphene's two-dimensionality. Here we report the origins of surface contamination of graphene, which is primarily rooted in chemical vapour deposition production at elevated temperatures, rather than during transfer and storage. In turn, we demonstrate a design of Cu substrate architecture towards the scalable production of super-clean graphene (>99% clean regions). The readily available, super-clean graphene sheets contribute to an enhancement in the optical transparency and thermal conductivity, an exceptionally lower-level of electrical contact resistance and intrinsically hydrophilic nature. This work not only opens up frontiers for graphene growth but also provides exciting opportunities for the utilization of as-obtained super-clean graphene films for advanced applications.

引用

页数：7

共 41 条

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