TY - JOUR
T1 - Towards super-clean graphene
AU - Lin, Li
AU - Zhang, Jincan
AU - Su, Haisheng
AU - Li, Jiayu
AU - Sun, Luzhao
AU - Wang, Zihao
AU - Xu, Fan
AU - Liu, Chang
AU - Lopatin, Sergei
AU - Zhu, Yihan
AU - Jia, Kaicheng
AU - Chen, Shulin
AU - Rui, Dingran
AU - Sun, Jingyu
AU - Xue, Ruiwen
AU - Gao, Peng
AU - Kang, Ning
AU - Han, Yu
AU - Xu, H. Q.
AU - Cao, Yang
AU - Novoselov, K. S.
AU - Tian, Zhongqun
AU - Ren, Bin
AU - Peng, Hailin
AU - Liu, Zhongfan
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank Prof. Lutao Weng in Hong Kong University of Science and Technology for his help in TOF-SIMS. This work was financially supported by the National Basic Research Program of China (Nos. 2016YFA0200101, 2013CB932603 and 2014CB932500), the National Natural Science Foundation of China (Nos. 51432002, 51520105003, 21525310 and 51362029), and Beijing Municipal Science and Technology Commission (Nos. Z161100002116002 and Z161100002116021), and Suzhou Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Suzhou 215006, China.
PY - 2019/4/23
Y1 - 2019/4/23
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/656243
UR - http://www.nature.com/articles/s41467-019-09565-4
UR - http://www.scopus.com/inward/record.url?scp=85064741339&partnerID=8YFLogxK
U2 - 10.1038/s41467-019-09565-4
DO - 10.1038/s41467-019-09565-4
M3 - Article
C2 - 31015405
SN - 2041-1723
VL - 10
JO - Nature Communications
JF - Nature Communications
IS - 1
ER -