%0 Journal Article
%T Investigating the Potential of Quasi-One-Dimensional Organic Crystals of TTT(TCNQ)<sub>2</sub> for Thermoelectric Applications
%A Silvia Andronic
%A Ionel Sanduleac
%J Advances in Materials Physics and Chemistry
%P 1-14
%@ 2162-5328
%D 2024
%I Scientific Research Publishing
%R 10.4236/ampc.2024.141001
%X The purpose of this paper is to present the results of investigations on
qua<span>si-one-dimensional organic crystals of
tetrathiotetracene-tetracyanoquinodi</span><span><span><span style=\"font-family:;\" \"=\"\">-</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">methane
(TTT(TCNQ)<sub>2</sub>) from the prospective of thermoelectric applications. <span>The calculations were performed after analytical
expressions, obtained in the frame of a physical model, more detailed than the
model presented earlier by authors. The main Hamiltonian of the model includes
the electronic and phonon part, electron-phonon interactions and the impurity
scattering term. In order to estimate the electric charge transport between the
molec</span>ular chains, the physical model was upgraded to the so-called
three-dimen</span></span></span><span><span><span style=\"font-family:;\" \"=\"\">- </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">sional (3D) physical model. Numeric computations were pe<span>rformed to determine the electrical conductivity,
Seebeck coefficient, thermal conductivity</span>, thermoelectric power factor
and thermoelectric figure-of-merit as a function on charge carrier
concentrations, temperatures<span> and impurity
concentrations. A detailed analysis of charge-lattice interaction, consisting
of the exploration of the Peierls structural transition in TCNQ molecular
chains of TTT(TCNQ)<sub>2</sub> was performed. As result, the critical
transition temperature was determined. The dispersion of renormalized phonons
was examined in detail.</span></span></span></span>
%K Organic Materials
%K Tetrathiotetracene-Tetracyanoquinodimethane
%K Thermoelectric Figure of Merit
%K Renormalized Phonon Spectrum
%K Peierls Tran-sition
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=130767