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Thermoelectrics are a promising class of materials for renewable energy owing to their capability to generate electricity from waste heat, with their performance being governed by a competition between charge and thermal transport. A…

Thermoelectric phenomena are traditionally associated with the interconversion of thermal and electrical energy in many-body systems. In the context of high-temperature quantum chromodynamics (QCD) matter produced in relativistic heavy-ion…

High Energy Physics - Phenomenology · Physics 2025-12-09 Kamaljeet Singh , Raghunath Sahoo

These compounds have long been known as promising thermoelectric materials. Recently it was revealed, that they also have unconventional electronic topology. This renewed interest to the investigation of their transport properties. In order…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 D. A. Pshenay-Severin , Y. V. Ivanov , A. T. Burkov

To increase the performance of thermoelectric materials, the electronic parameters in the figure of merit must be improved. In this paper, we use full, numerical band structures and solve the Boltzmann equation in the relaxation time…

Materials Science · Physics 2018-12-17 Evan Witkoske , Xufeng Wang , Jesse Maassen , Mark Lundstrom

The properties of two-dimensional (2D) materials have been extensively studied and applied in various applications. Our interest is to theoretically investigate the thermal transport and thermoelectric properties of the 2D transition metal…

Materials Science · Physics 2024-02-16 Radityo Wisesa , Anugrah Azhar , Edi Suprayoga

The hot carrier solar cell (HCSC) has the potential for converting solar energy into electrochemical energy with an efficiency of 85.4%. For this, in addition to an idealized light absorber, the HCSC has to be connected to the external load…

Applied Physics · Physics 2022-12-21 Antonio Martí , Elisa Antolín , Iñigo Ramiro

This work demonstrates a first-principles-based approach to obtaining finite temperature thermal and electronic transport properties which can be employed to model and understand mesoscale structural evolution during electronic, magnetic,…

The demand for green energy increases day by day due to environmental concern and thermoelectric (TE) materials are one of the eco-friendly energy resources. Few authors reported high TE performance in TmCu$_3$Ch$_4$, reaching the figure of…

Materials Science · Physics 2022-05-10 Enamul Haque

We study thermoelectric transport at low temperatures in correlated Kondo insulators, motivated by the recent observation of a high thermoelectric figure of merit(ZT) in $FeSb_2$ at $T \sim 10 K$. Even at room temperature, correlations have…

Materials Science · Physics 2013-08-14 Seungmin Hong , Pouyan Ghaemi , Joel E. Moore , Philip W. Phillips

We theoretically investigate the thermoelectric properties of semiconducting (gapped) materials by varying the degrees of polynomials in their energy dispersion relations, in which either the valence or conduction energy dispersion depends…

Search of new thermoelectric (TE) materials with high \textit{figure-of-merit} (ZT) is always inspired the researcher in TE field. Here, we present a combined experimental and theoretical study of TE properties of Na$_{0.74}$CoO$_{2}$…

Materials Science · Physics 2020-08-26 Shamim Sk , Jayashree Pati , R. S. Dhaka , Sudhir K. Pandey

Substitution of Cu for Ni in the Kondo lattice system CeNi$_2$Al$_3$ results in a simultaneous optimization of the three interdependent thermoelectric parameters: thermoelectric power, electrical and thermal conductivities, where the…

Strongly Correlated Electrons · Physics 2015-05-14 Peijie Sun , Tusyoshi Ikeno , Toshio Mizushima , Yosikazu Isikawa

We predict high thermoelectric efficiency in the layered perovskite La$_2$Ti$_2$O$_7$, based on calculations (mostly ab-initio) of the electronic structure, transport coefficients, and thermal conductivity in a wide temperature range. The…

Materials Science · Physics 2019-03-06 Vincenzo Fiorentini , Roberta Farris , Edoardo Argiolas , Maria Barbara Maccioni

The electronic and transport properties of the half-Heusler compound LaPtSb are investigated by performing first-principles calculations combined with semi-classical Boltzmann theory and deformation potential theory. Compared with many…

Materials Science · Physics 2016-06-13 Q. Y. Xue , H. J. Liu , D. D. Fan , L. Cheng , B. Y. Zhao , J. Shi

The electronic and thermoelectric (TE) transport properties of 13 n-type and p-type half-Heusler alloys are computationally examined using Boltzmann transport. The electronic scattering times resulting from all relevant phonon interactions…

A suite measurements of the electrical, thermal, and vibrational properties are conducted on palladium sulfide (PdS) in order to investigate its thermoelectric performance. The tetragonal structure with the space group $P$42/$m$ for PdS is…

Materials Science · Physics 2018-02-09 Liu-Cheng Chen , Bin-Bin Jiang , Hao Yu , Hong-Jie Pang , Lei Su , Xun Shi , Li-Dong Chen , Xiao-Jia Chen

The band structure of the novel low-temperature thermoelectric material, \CBT, is calculated and analyzed using the semi-classic transport equations. It is shown that to obtain a quantitative agreement with measured transport properties a…

Materials Science · Physics 2007-05-23 Lars Lykke , Bo B. Iversen , Georg K. H. Madsen

In order to improve the thermoelectric performance of TiCoSb we have substituted 50% of Ti equally with Zr and Hf at Ti site and Sb with Sn and Se equally at Sb site. The electronic structure of Ti0.5Zr0.25Hf0.25CoSn0.5Se0.5 is investigated…

Materials Science · Physics 2018-05-09 Mukesh K. Choudhary , P Ravindran

Thermoelectric devices can directly convert waste heat into electricity, which makes them an important clean energy technology. The underlying materials performance can be evaluated by the dimensionless figure of merit ZT. Metal halides are…

Materials Science · Physics 2023-12-06 Jong Woong Park , Young-Kwang Jung , Aron Walsh

The thermoelectric properties of 54 different group 4 half-Heusler (HH) alloys have been studied from first principles. Electronic transport was studied with density functional theory using hybrid functionals facilitated by the $\mathbf{k}…

Materials Science · Physics 2020-01-08 Kristian Berland , Nina Shulumba , Olle Hellman , Clas Persson , Ole Martin Løvvik