%0 Journal Article
%T The effect of dimerization strength and comb-like bond¡¯s hopping energy on electronic conductance and density of states of typical polyacetylene polymers
%A H Rabani
%A M Mardaani
%A A Esmaeili
%J Iranian Journal of Physics Research
%D 2012
%I Isfahan University of Technology
%X In this paper, we study the electronic conductance and density of states for a comb-like polymer with periodic hopping energies in the tight-binding approach. Electron transmission coefficient and density of states are analytically calculated by using Green¡¯s function of the system. The results show that the electronic conductance spectrum has one energy gap in the absence of carbon-hydrogen bond¡¯s hopping energy, which is proportional to the dimerization strength. Carbon-Hydrogen bond¡¯s hopping energy makes the appearance three energy gaps in the conductance spectrum and the dimerization strength influences only the outer gaps.
%K nanowire
%K electronic conductance
%K Green¡¯s function
%K dimerization strength
%K density of states
%K polyacetylene
%U http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-553&slc_lang=en&sid=1