Thermoelectric Properties of B12N12 Molecule

被引:4
作者
Niazian, Mohammad Reza [1 ]
Matin, Laleh Farhang [1 ]
Yaghobi, Mojtaba [2 ]
Masoudi, Amir Ali [1 ,3 ]
机构
[1] Islamic Azad Univ, Dept Phys, North Tehran Branch, Tehran 1651153311, Iran
[2] Islamic Azad Univ, Dept Phys, Ayatollah Amoli Branch, Amol 4635143358, Iran
[3] Alzahra Univ, Dept Phys, Tehran 1993893973, Iran
关键词
B12N12; fullerene; non-equilibrium Green's function; thermoelectric effect; electron-phonon interaction; electrical conductivity; molecular device; the number of atom contacts; TRANSPORT-PROPERTIES; ELECTRON-TRANSPORT; THERMOPOWER; CONDUCTIVITY; SPECTROSCOPY; CONDUCTANCE; DYNAMICS; AL12N12; AL12P12; SYSTEMS;
D O I
10.2174/1573413716666191230155900
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
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. The influence of the number of atom contacts was also investigated on the thermoelectric properties of molecule located between two electrodes metallic. Therefore, the thermoelectric characteristics of the B12N12 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: It has been observed that the largest values of the total part of conductance as well as its elastic (G(e,n)(max)) depend on the number of atom contacts and are arranged as: G(e,6)(max) > G(e,1)(max) > G(e,4)(max). Furthermore, the largest values of the electronic thermal conductance, i.e. K-p(max) are seen to be in the order of K-p,4(max) < K-p,1(max) < K-p,6(m ax) that the number of main peaks increases in four-atom contacts at (E < E-f). Conclusion: Furthermore, it is represented that the thermal conductance shows an oscillatory behavior which is significantly affected by the number of atom contacts.
引用
收藏
页码:936 / 944
页数:9
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