2022/07/15 by Gennadiy Ivanovich Mironov, Mironov, Gennadiy Ivanovich
Engineering · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Mechanical and Optical Resonators #Molecular Junctions and Nanostructures
paper · pdf · doi:10.48550/arxiv.2207.07359
openalex publication_date 2022/07/15 · openalex created_date 2022/07/19 · openalex updated_date 2026/07/28
The electronic structure of chair-type biphenylene ribbons is studied within the framework of the Hubbard Hamiltonian in the approximation of static fluctuations. An expression is obtained for the Fourier transform of the Green's functions, whose poles determine the spectrum of elementary excitations. The energy spectrum of biphenylene ribbons indicates that nanoribbons with a width of 6, 9, 12, 15, 18 carbon atoms are in the semiconductor state. Densities of state of electrons of biphenylene ribbons of various widths are presented in comparison with the results of experimental measurements of differential conductance of biphenylene ribbons. It is shown that the width of the band gap decreases exponentially with an increase in the width of the biphenylene ribbon. Ribbons with a width of 21 carbon atoms or more are in the metallic state.