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Thermoelectric power (TEP) is measured in bilayer graphene for various temperatures and charge-carrier densities. At low temperatures, measured TEP well follows the semiclassical Mott formula with a hyperbolic dispersion relation. TEP for a…

介观与纳米尺度物理 · 物理学 2010-12-14 Seung-Geol Nam , Dong-Keun Ki , Hu-Jong Lee

The electronic structure and thermoelectric properties of SnSe are studied by first-principles methods. The inclusion of van der Waals dispersive corrections improves the agreement of structural parameters with experiments. The bands…

材料科学 · 物理学 2016-12-20 Robert L. González-Romero , Alex Antonelli , Juan J. Meléndez

Based on the concept of band bending at metal/semiconductor interfaces as an energy filter for electrons, we present a theory for the enhancement of the thermoelectric properties of semiconductor materials with metallic nanoinclusions. We…

材料科学 · 物理学 2008-07-03 Sergey V. Faleev , François Léonard

Nanocomposites are promising candidates for the next generation of thermoelectric materials since they exhibit extremely low thermal conductivities as a result of phonon scattering on the boundaries of the various material phases. The…

介观与纳米尺度物理 · 物理学 2017-12-06 Samuel Foster , Mischa Thesberg , Neophytos Neophytou

We performed the first-principles calculation on common thermoelectric semiconductors $\rm Bi_2Te_3$, $\rm Bi_2Se_3$, $\rm SiGe$, and $\rm PbTe$ in bulk three-dimension (3D) and two-dimension (2D). We found that miniaturization of materials…

材料科学 · 物理学 2020-11-13 Kevin Octavian , Eddwi H. Hasdeo

Half-Heusler (HH) phases have garnered much attention as thermally stable and non-toxic thermoelectric materials for power conversion. The most studied alloys to date utilize Hf, Zr, and Ti as the base components. These alloys can achieve a…

The present theoretical study focuses on the structural, electronic and thermoelectric properties of PbTe, PbSe and their ternary alloys PbSe$_{x}$Te$_{1-x}$, using the density functional theory (DFT) by the full potential linearised…

材料科学 · 物理学 2025-12-29 M. Kaid Slimane , B. N. Brahmi , M. Bouchenaki , S. Bekhechi

The spectral conductivity, i.e., the electrical conductivity as a function of the Fermi energy, is a cornerstone in determining the thermoelectric transport properties of electrons. However, the spectral conductivity depends on…

统计力学 · 物理学 2022-11-02 Tomoki Hirosawa , Frank Schäfer , Hideaki Maebashi , Hiroyasu Matsuura , Masao Ogata

The transport coefficients of disordered media are analyzed using direct numerical simulation and effective medium theory. The results indicate a range of materials parameters for which disorder leads to an enhanced power factor. This…

材料科学 · 物理学 2015-03-19 Paul M. Haney

We investigate the thermoelectric properties of CaAl$_2$Si$_2$-type Zintl phase compounds $AB_2X_2$ ($A$ = Mg, Ca, Sr, Ba, $B$ = Mg, Zn, Cd, and $X$ = P, As, Sb) using first principles band calculations within the Boltzmann transport theory…

材料科学 · 物理学 2020-11-16 Hidetomo Usui , Kazuhiko Kuroki

We report the thermoelectric (TE) properties of (1-x)LaCoO3.xLa0.7Sr0.3MnO3 (0 < x < 0.10) composite in a temperature range 320-800 K. Addition of La0.7Sr0.3MnO3 to LaCoO3 in small amount (5 weight %) improves the overall Seebeck…

材料科学 · 物理学 2023-04-11 Ashutosh Kumar , Karuna Kumari , B. Jayachandran , D. Sivaprahasam , Ajay D Thakur

We study the electronic contribution to the main thermoelectric properties of a molecular junction consisting of a single quantum dot coupled to graphene external leads. The system electrical conductivity (G), Seebeck coefficient ($S$), and…

介观与纳米尺度物理 · 物理学 2017-10-25 S. T. Rodriguez , I. Grosu , M. Crisan , I. Tifrea

The electrical conductance, thermal conductance, thermal power and figure of merit (ZT) of semiconductor quantum dots (QDs) embedded into an insulator matrix connected with metallic electrodes are theoretically investigated in the Coulomb…

介观与纳米尺度物理 · 物理学 2015-05-18 David M. -T. Kuo , Yia-chung Chang

In this first-principles study, we investigated the thermoelectric properties of the full-Heusler compound CsK$_2$Sb at different compressive strains. This material exhibits a valence band structure with significant effective mass…

材料科学 · 物理学 2025-05-14 Øven A. Grimenes , G. Jeffrey Snyder , Ole M. Løvvik , Kristian Berland

We study thermoelectric properties of the system composed of a monoatomic chain on a surface and additional electrode coupled to the chain, which can be an STM tip. In particular, we are interested in thermopower, electric and thermal…

介观与纳米尺度物理 · 物理学 2015-06-25 M. Krawiec , M. Jalochowski

This study presents a curated thermoelectric material database, teMatDb, constructed by digitizing literature-reported data. It includes temperature-dependent thermoelectric properties (TEPs), Seebeck coefficient, electrical resistivity,…

材料科学 · 物理学 2025-07-28 Byungki Ryu , Ji Hui Son , Sungjin Park , Jaywan Chung , Hye-Jin Lim , SuJi Park , Yujeong Do , SuDong Park

We report the thermoelectric (TE) properties of Na$_{0.74}$Co$_{0.95}$Nb$_{0.05}$O$_{2}$ in the temperature range $300-1200$ K, as a potential candidate for p-type thermoelectric material. The experimental values of Seebeck coefficient (S)…

强关联电子 · 物理学 2019-11-18 Arzena Khatun , Shamim Sk , Jayashree Pati , R. S. Dhaka , Sudhir K. Pandey

Since the implementation of the Materials Genome Project by the Obama administration in the United States, the development of various computational materials databases has fundamentally expanded the choices of industries such as materials…

材料科学 · 物理学 2024-05-09 Ying Fang , Hezhu Shao

Defect engineering can improve the linked charge, spin, and lattice behavior of thermoelectric topological insulators. Using density functional theory with spin orbit coupling, we study structural, electronic, optical, thermoelectric,…

材料科学 · 物理学 2025-12-15 Muhammad Usman Javed , Sikander Azam , Qaiser Rafiq , Hamdy Khamees Thabet

We investigate the thermoelectric properties of a T-shaped double quantum dot system described by a generalized Anderson Hamiltonian. The system's electrical conduction (G) and the fundamental thermoelectric parameters such as the Seebeck…

介观与纳米尺度物理 · 物理学 2015-06-23 A. L. Monteros , G. S. Uppal , S. R. McMillan , M. Crisan , I. Tifrea