The effect of the linker group between porphyrin dimers on the thermoelectric properties of molecular junctions

Authors

  • G. Zamel Hassan Department of Physics, College of Sciences, University of Thi-Qar
  • M. Deia Noori Department of Physics, College of Science, University of Thi-Qar

DOI:

https://doi.org/10.31349/RevMexFis.72.030401

Keywords:

Dimer porphyrin; zinc metal ion; (DFT) method; the thermoelectric figure of merit (ZT)

Abstract

The effect of the appearance of three different linkers between dimer porphyrins on the electronic and thermoelectric properties of three different dimer porphyrin families’ molecular junctions was investigated theoretically using a combination of density functional theory (DFT) methods. Our results show that in the free-based porphyrin dimer family, all electronic and thermoelectric properties have been affected by using different linkers between porphyrin dimers. While in the presence of one zinc metal ion in the center of the porphyrin dimer and the two zinc metal ion in the center of porphyrin dimer families, the results demonstrate that the electronic and thermal conductance is highly affected by the presence of three different linkers between these dimers. On the other hand, the thermopower of all other structures shows noticeable change, especially around the Fermi energy. Thus, the gradual appearance of zinc ion in the center of porphyrin dimer units with three different linkers between these dimers plays an essential role in these structures’ electric and thermal properties.

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Published

2026-05-01

How to Cite

[1]
G. Hassan and M. . Noori, “The effect of the linker group between porphyrin dimers on the thermoelectric properties of molecular junctions”, Rev. Mex. Fís., vol. 72, no. 3, pp. 030401–030409, May 2026.

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Section

04 Atomic and Molecular Physics