The Physics Society of Iran Iranian Journal of Physics Research 1682-6957 15 1 2019 11 26 Electronic transport of molecular nanowires by considering of electron hopping energy between the second neighbors Electronic transport of molecular nanowires by considering of electron hopping energy between the second neighbors 89 95 1126 10.18869/acadpub.ijpr.15.1.89 FA H Rabani M Mardaani M Mardaani 0000-0002-6268-5311 M Talebi Journal Article 2019 11 26 In this paper, we study the electronic conductance of molecular nanowires by considering the electron hopping between the first and second neighbors with the help Green’s function method at the tight-binding approach. We investigate three types of structures including linear uniform and periodic chains as well as poly(p-phenylene) molecule which are embedded between two semi-infinite metallic leads. The results show that in the second neighbor approximation, the resonance, anti-resonance and Fano phenomena occur in the conductance spectra of these structures. Moreover, a new gap is observed at edge of the lead energy band wich its width depends on the value of the electron hopping energy between the second neighbors. In the systems including intrinsic gap, this hopping energy shifts the gap in the energy spectra. In this paper, we study the electronic conductance of molecular nanowires by considering the electron hopping between the first and second neighbors with the help Green’s function method at the tight-binding approach. We investigate three types of structures including linear uniform and periodic chains as well as poly(p-phenylene) molecule which are embedded between two semi-infinite metallic leads. The results show that in the second neighbor approximation, the resonance, anti-resonance and Fano phenomena occur in the conductance spectra of these structures. Moreover, a new gap is observed at edge of the lead energy band wich its width depends on the value of the electron hopping energy between the second neighbors. In the systems including intrinsic gap, this hopping energy shifts the gap in the energy spectra. https://ijpr.iut.ac.ir/article_1126_ffeed84c7cb1ae7bf4ec4bd78275bb98.pdf