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- W2789500521 abstract "We present density functional theory-nonequilibrium Green's function method for electron transport of dipyridazine and dipyridimine molecular junctions with gold, copper and nickel electrodes. Our investigation reveals that the junctions formed with gold and copper electrodes bridging dipyridazine molecule through thiol anchoring group enhance current as compared to the junctions in which the molecule and electrode were coupled directly. Further, nickel electrode displays weak decrease of current with increase of voltage at about 1.2 V. The result is fully rationalized by means of the distribution of molecular orbitals as well as shift in molecular energy levels and HOMO-LUMO gap with applied bias voltage. Our findings are compared with theoretical and experimental results available for other molecular junctions. Present results predict potential avenues for changing the transport behavior by not only changing the electrodes, but also the position of nitrogen atom and type of anchoring-atom that connect molecule and electrodes, thus extending applications of dipyridazine and dipyridimine molecule in future integrated circuits." @default.
- W2789500521 created "2018-03-29" @default.
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- W2789500521 date "2018-05-02" @default.
- W2789500521 modified "2023-10-16" @default.
- W2789500521 title "Electron transport in dipyridazine and dipyridimine molecular junctions: a first-principles investigation" @default.
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- W2789500521 doi "https://doi.org/10.1088/2053-1591/aaafef" @default.
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