CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Unconventional Atomic Structure of Graphene Sheets on Solid Substrates
Zhang, JJ; Yang, YZ; Yang, S; Song, J; Wang, Y; Liu, XG; Yang, QQ; Shen, Y; Wang, S; Yang, HJ; Lu, JH; Li, B; Fang, HP; Lal, R; Czajkowsky, DM; Hu, J; Shi, GS; Zhang, Y
2019
Source PublicationSMALL
ISSN1613-6810
Volume15Issue:42Pages:-
Subtype期刊论文
AbstractThe atomic structure of free-standing graphene comprises flat hexagonal rings with a 2.5 angstrom period, which is conventionally considered the only atomic period and determines the unique properties of graphene. Here, an unexpected highly ordered orthorhombic structure of graphene is directly observed with a lattice constant of approximate to 5 angstrom, spontaneously formed on various substrates. First-principles computations show that this unconventional structure can be attributed to the dipole between the graphene surface and substrates, which produces an interfacial electric field and induces atomic rearrangement on the graphene surface. Further, the formation of the orthorhombic structure can be controlled by an artificially generated interfacial electric field. Importantly, the 5 angstrom crystal can be manipulated and transformed in a continuous and reversible manner. Notably, the orthorhombic lattice can control the epitaxial self-assembly of amyloids. The findings reveal new insights about the atomic structure of graphene, and open up new avenues to manipulate graphene lattices.
KeywordELECTRONIC-PROPERTIES CARBON STRAIN MICA
DOI10.1002/smll.201902637
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32270
Collection中科院上海应用物理研究所2011-2019年
Affiliation1.Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Lab, Shanghai 201210, Peoples R China;
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China;
3.Shanghai Univ, Shanghai Appl Radiat Inst, Shanghai 200444, Peoples R China;
4.Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Dept Instrument Sci & Engn, Inst Nano Biomed & Engn,Shanghai Engn Res Ctr Int, Shanghai 200240, Peoples R China;
5.Univ Calif San Diego, Mat Sci & Engn, La Jolla, CA 92093 USA;
6.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources Chem Qinghai Prov, Xining 810008, Qinghai, Peoples R China;
7.Shanghai Jiao Tong Univ, State Key Lab Oncogenes, Sch Biomed Engn, Shanghai 200240, Peoples R China;
8.Shanghai Jiao Tong Univ, BioID Ctr, Sch Biomed Engn, Shanghai 200240, Peoples R China
Recommended Citation
GB/T 7714
Zhang, JJ,Yang, YZ,Yang, S,et al. Unconventional Atomic Structure of Graphene Sheets on Solid Substrates[J]. SMALL,2019,15(42):-.
APA Zhang, JJ.,Yang, YZ.,Yang, S.,Song, J.,Wang, Y.,...&Zhang, Y.(2019).Unconventional Atomic Structure of Graphene Sheets on Solid Substrates.SMALL,15(42),-.
MLA Zhang, JJ,et al."Unconventional Atomic Structure of Graphene Sheets on Solid Substrates".SMALL 15.42(2019):-.
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