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相关论文: Thermoelectric properties of ${\beta}$-FeSi$_{\tex…

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Pyrite FeS$_2$ has been investigated for a wide range of applications, including thermoelectrics due to previous observation of large thermopower at room-temperature. However, the values of thermopower reported in the literature is…

材料科学 · 物理学 2025-10-17 Anustup Mukherjee , Alaska Subedi

The quest for thermoelectric materials with high figures of merit is an ongoing and significant area of research. In this study, we investigate the thermoelectric properties of the CoTiSi half-Heusler alloy using density functional theory…

材料科学 · 物理学 2025-09-10 A. Shukla , Sadhana Matth , Raghavendra Pal , S. S. A. Warsi , Himanshu Pandey

We employed first-principles calculations to investigate the thermoelectric transport properties of the compound As$_2$Se$_3$. Early experiments and calculations have indicated that these properties are controlled by a kind of native defect…

材料科学 · 物理学 2023-07-27 Anderson S. Chaves , Murilo Aguiar Silva , Alex Antonelli

Using the density functional theory (DFT) in combination with Boltzmann transport theory, the influence of Mg concentrations (x) doping on the thermoelectric properties of Hg1-xMgxSe ternary alloys was systematically investigated. The…

材料科学 · 物理学 2023-03-28 Y. Selmani , H. Labrim , A. Jabar , L. Bahmad

Recently SnSe compound was reported to have a peak thermoelectric figure-5 of-merit (ZT) of 2.62 at 923 K, but the ZT values at temperatures below 750 K are relatively low. In this work, the electronic structures of SnSe are calculated…

材料科学 · 物理学 2015-04-09 Aijun Hong , Lin Li , Haixia Zhu , Zhibo Yan , Junming Liu , Zhifeng Ren

Thermoelectricity in principle provides a pathway to put waste heat to good use. Motivated by this we investigate thermal and electrical transport properties of two new Fe-based Heusler alloys, FeTaSb and FeMnTiSb, by a first principles…

材料科学 · 物理学 2018-06-26 Mohd Zeeshan , Tashi Nautiyal , Jeroen van den Brink , Hem C. Kandpal

We report an investigation of temperature- and doping-dependent thermoelectric behaviors of topological semimetal Cd3As2. The electrical conductivity, thermal conductivity, Seebeck coefficient, and figure of merit (ZT) are calculated by…

材料科学 · 物理学 2016-11-22 Tong Zhou , Cheng Zhang , Huisheng Zhang , Faxian Xiu , Zhongqin Yang

We report first principles LDA calculations of the electronic structure and thermoelectric properties of $\beta $-Zn$_{4}$Sb$_{3}$. The material is found to be a low carrier density metal with a complex Fermi surface topology and…

材料科学 · 物理学 2009-10-30 Seong-Gon Kim , I. I. Mazin , D. J. Singh

Heat Capacity of needle-like [length=5mm, diameter=1 mm] $\beta$-FeSi$_{2}$ single crystal, grown by chemical vapor transport has been measured. Two anomalies are found, a broad deviation centered around 160 K and a clear deviation at a…

材料科学 · 物理学 2009-11-11 Sher Alam , T. Nagai , Y. Matsui

The effects of various transition metal dopants on the electrical and thermal transport properties of Fe1-xMxSi alloys (M= Co, Ir, Os) are reported. The maximum thermoelectric figure of merit ZTmax is improved from 0.007 at 60 K for pure…

强关联电子 · 物理学 2015-05-28 Brian C. Sales , Olivier Delaire , Michael A. McGuire , Andrew F. May

We present an investigation of the thermoelectric properties of cubic perovskite SrTiO3. The results are derived from a combination of calculated transport functions obtained from Boltzmann transport theory in the constant scattering time…

材料科学 · 物理学 2016-05-27 Jifeng Sun , David J. Singh

We study the electronic transport coefficients and the thermoelectric figure of merit ZT in $n$-doped Mg$_3$Sb$_2$ based on density-functional electronic structure and Bloch-Boltzmann transport theory with an energy- and…

Electronic structure and thermoelectric properties of marcasite (m) and synthetic pyrite (p) phases of FeX$_2$ (X=Se,Te) have been investigated using first principles density functional theory and Boltzmann transport equation. The plane…

材料科学 · 物理学 2014-02-18 Vijay Kumar Gudelli , V. Kanchana , G. Vaitheeswaran , M. C. Valsakumar , S. D. Mahanti

Recently, $\mathrm{BaSn_2}$ is predicted to be a strong topological insulator by the first-principle calculations. It is well known that topological insulator has a close connection to thermoelectric material, such as $\mathrm{Bi_2Te_3}$…

材料科学 · 物理学 2016-12-21 San-Dong Guo , Liang Qiu

We present a comprehensive first-principles analysis of the thermoelectric transport properties of hole-doped pyrite FeS$_2$ that includes electron-phonon interactions. This work was motivated by the observed variations in the magnitude of…

材料科学 · 物理学 2025-10-20 Anustup Mukherjee , Alaska Subedi

The doping and temperature dependent thermopower of SnTe is calculated from the first principles band structure using Boltzmann transport theory. We find that the $p$-type thermopower is inferior to PbTe consistent with experimental…

材料科学 · 物理学 2011-03-25 D. J. Singh

The thermoelectric and transport properties of a Fe3O4/SiO2/p-Si(100) heterostructure have been investigated between 100 and 300 K. Both Hall and Seebeck coefficients change sign from negative to positive with increasing temperature while…

材料科学 · 物理学 2015-06-19 Z. Viskadourakis , M. L. Paramês , O. Conde , M. Zervos , J. Giapintzakis

Here, we have investigated the thermoelectric properties of FeMnScGa alloy by combined use of full potential linearized augmented plane-wave (FP-LAPW) method and Boltzmann transport theory implemented in Wien2K and BoltzTraP code,…

强关联电子 · 物理学 2020-12-02 Shubham Singh , Saurabh Singh , Nitinkumar Bijewar , Ashish Kumar

Here, we investigate the thermoelectric properties of the marcasite-type compounds MSb$_2$ (M = Ta, Nb) in the temperature range of 310-730 K. These compounds were synthesized by a solid-state reaction followed by the spark plasma sintering…

材料科学 · 物理学 2024-03-20 Shamim Sk , Naoki Sato , Takao Mori

Thermoelectric materials create an electric potential when subject to a temperature gradient and vice versa hence they can be used to harvest waste heat into electricity and in thermal management applications. However, finding highly…

材料科学 · 物理学 2022-05-10 Enamul Haque , Claudio Cazorla , M. Anwar Hossain
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