Conductive junctions with parallel graphene sheets | Zendy

Xiao Zheng | Zendy; San-Huang Ke | Zendy; Weitao Yang | Zendy

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Conductive junctions with parallel graphene sheets

Author(s) -

Xiao Zheng,

San-Huang Ke,

Weitao Yang

Publication year - 2010

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.3357416

Subject(s) - graphene , conductance , materials science , graphene nanoribbons , molecule , electrical conductor , nanotechnology , conjugated system , chemical physics , condensed matter physics , chemistry , polymer , physics , composite material , organic chemistry

The establishment of conductive graphene-molecule-graphene junction is investigated through first-principles electronic structure calculations and quantum transport calculations. The junction consists of a conjugated molecule connecting two parallel graphene sheets. The effects of molecular electronic states, structure relaxation, and molecule-graphene contact on the conductance of the junction are explored. A conductance as large as 0.38 conductance quantum is found achievable with an appropriately oriented dithiophene bridge. This work elucidates the designing principles of promising nanoelectronic devices based on conductive graphene-molecule-graphene junctions

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