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Updated: Apr 19, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
Published on: July 24, 2015
Rectification inversion in oxygen substituted graphyne-graphene-based heterojunctions
Wen-kai Zhao1, Bin Cui, Chang-feng Fang
1School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China. liuds@sdu.edu.cn.
Abstract:
Current rectification is found in oxygen-substituted zigzag graphyne nanoribbon/hydrogen-terminated zigzag graphene nanoribbon heterostructure junctions, from the application of nonequilibrium Green's function formalism combined with density functional theory. This behavior could be tuned by varying the number and location of oxygen atoms in the zigzag graphyne nanoribbon parts, and the rectification direction could be reversed due to the parity limitation tunneling effect. Moreover, an obvious negative differential resistance behavior is found and may be explained by two different mechanisms.
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