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High-Performance Thermoelectric Materials
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High-Performance Thermoelectric Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Energy Materials".

Deadline for manuscript submissions: closed (31 May 2021) | Viewed by 4089

Special Issue Editor

Prof. Dr. Il-Ho Kim

E-Mail Website
Guest Editor
KNUT (Korea National University of Transportation)
Interests: skutterudite; tetrahedrite; silicide

Special Issue Information

Dear Colleagues,

Thermoelectric materials have attracted vast attention over the last decades, and research has recently flourished with the emergence of novel concepts of band engineering, nanostructuring, and discoveries of various novel materials. Thermoelectric devices, allowing for the solid-state and reversible conversion between heat and electricity, offer numerous advantages over competing technologies in the fields of temperature control and thermal energy harvesting. The thermoelectric performance of devices depends primarily on the type of materials used, and on their properties. This Special Issue of Materials aims at gathering full papers and comprehensive review articles that cover the whole spectrum of thermoelectric materials with high performance. Potential topics include, but are not limited to:

  • Chalcogenide
  • Skutterudite
  • Silicide
  • Tetrahedrite
  • Half-Heusler
  • Clathrate
  • Pnictide
  • Zintl
  • Organic
  • Low-Dimensional Materials
  • Novel Materials

Prof. Dr. Il-Ho Kim
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Chalcogenide
  • Skutterudite
  • Silicide
  • Tetrahedrite
  • Half-Heusler
  • Clathrate
  • Pnictide
  • Zintl
  • Organic
  • Low-Dimensional Materials
  • Novel Materials

Published Papers (2 papers)

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Research

11 pages, 4762 KiB  
Article
Thermoelectric and Transport Properties of Permingeatite Cu3SbSe4 Prepared Using Mechanical Alloying and Hot Pressing
by Go-Eun Lee and Il-Ho Kim
Materials 2021, 14(5), 1116; https://doi.org/10.3390/ma14051116 - 27 Feb 2021
Cited by 11 | Viewed by 1547
Abstract
Permingeatite (Cu3SbSe4) is a promising thermoelectric material because it has a narrow band gap, large carrier effective mass, and abundant and nontoxic components. Mechanical alloying (MA), which is a high-energy ball mill process, has various advantages, e.g., segregation/evaporation is [...] Read more.
Permingeatite (Cu3SbSe4) is a promising thermoelectric material because it has a narrow band gap, large carrier effective mass, and abundant and nontoxic components. Mechanical alloying (MA), which is a high-energy ball mill process, has various advantages, e.g., segregation/evaporation is not required and homogeneous powders can be prepared in a short time. In this study, the effects of MA and hot-pressing (HP) conditions on the synthesis of the Cu3SbSe4 phase and its thermoelectric properties were evaluated. The electrical conductivity decreased with increasing HP temperature, while the Seebeck coefficient increased. The power factor (PF) was 0.38–0.50 mW m−1 K−2 and the thermal conductivity was 0.76–0.78 W m−1 K−1 at 623 K. The dimensionless figure of merit, ZT, increased with increasing temperature, and a reliable and maximum ZT value of 0.39 was obtained at 623 K for Cu3SbSe4 prepared using MA at 350 rpm for 12 h and HP at 573 K for 2 h. Full article
(This article belongs to the Special Issue High-Performance Thermoelectric Materials)
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26 pages, 10096 KiB  
Article
A Peridynamic Computational Scheme for Thermoelectric Fields
by Migbar Assefa Zeleke, Xin Lai and Lisheng Liu
Materials 2020, 13(11), 2546; https://doi.org/10.3390/ma13112546 - 3 Jun 2020
Cited by 5 | Viewed by 2122
Abstract
Thermoelectric materials are materials that involve the coexistence of heat flux and electric current in the absence of magnetic field. In such materials, there is a coupling among electric potential and temperature gradients, causing the thermoelectric effects of Seebeck and Peltier. Those coupling [...] Read more.
Thermoelectric materials are materials that involve the coexistence of heat flux and electric current in the absence of magnetic field. In such materials, there is a coupling among electric potential and temperature gradients, causing the thermoelectric effects of Seebeck and Peltier. Those coupling effects make the design and analysis of thermoelectric materials complicated and sophisticated. The main aim of this work is dealing with thermoelectric materials with discontinuities. Since heat and electric fluxes are undefined at the crack tip and the temperature and electric fields across the crack surface are discontinuous, it is better to apply peridynamic (PD) theory to capture such details at the crack tips. Hence, we propose in this paper a PD theory which is suitable in tackling such discontinuities in thermal and electric fields. In this study, the continuum-based electrical potentials and temperature fields are written in the form of nonlocal integrals of the electrical potentials and temperature that are effective whether we have discontinuities or not. To illustrate the consistency of the peridynamic technique, a number of examples were presented and witnessed that PD results were in good agreement with those results from the literature, finite element solutions and analytical solutions. Full article
(This article belongs to the Special Issue High-Performance Thermoelectric Materials)
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