Title:Thermoelectric Properties of B<sub>12</sub>N<sub>12</sub> Molecule
VOLUME: 16
Author(s):Mohammad Reza Niazian, Laleh Farhang Matin*, Mojtaba Yaghobi and Amir Ali Masoudi
Affiliation:Department of Physics , North Tehran Branch, Islamic Azad University , 1651153311, Tehran, Department of Physics , North Tehran Branch, Islamic Azad University , 1651153311, Tehran, Department of Physics , Ayatollah Amoli Branch, Islamic Azad University , 46351-43358, Amol, Department of Physics , North Tehran Branch, Islamic Azad University , 1651153311, Tehran
Keywords:B12N12 fullerene, Non equilibrium Green’s Function, Thermoelectric effect, Electron–phonon interaction, Electrical conductivity, molecular device, the number of atom contacts
Abstract:Background:Recently, molecular electronics have attracted the attention of many researchers, both theoretically and applied electronics.Nanostructures have significant thermal properties, which is why they are considered as good options for designing a new generation of integrated electronic devices.
Objective:In this paper, the focus is on the thermoelectric properties of the molecular junction points with the electrodes. Also, the influence of the number of atom contacts was investigated on the thermoelectric properties of molecule located between two electrodes metallic.Therefore, the thermoelectric characteristics of the B12 N12 molecule are investigated.
Methods:For this purpose, the Green’s function theory as well as mapping technique approach with the wide-band approximation and also the inelastic behaviour is considered for the electron-phonon interactions.
Results & Conclusion:It is observed that the largest values of the total part of conductance as well as its elastic (G(e,n)max) depends on the number of atom contacts and are arranged as: G(e,1)max>G(e,4)max>G(e,6)max. Furthermore, the largest values of the electronic thermal conductance, i.e. Kpmax is seen to be in the order of K(p,4)max < K(p,1)max < K(p,6)max that the number of main peaks increases in four-atom contacts at (E< Ef). Furthermore, it is represented that the thermal conductance shows an oscillatory behavior which is significantly affected by the number of atom contacts.
