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相关论文: Thermoelectric transport in $\text{Bi}_2\text{Te}_…

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The anisotropic thermoelectric transport properties of bulk silicon strained in [111]-direction were studied by detailed first-principles calculations focussing on a possible enhancement of the power factor. Electron as well as hole doping…

材料科学 · 物理学 2012-06-28 N. F. Hinsche , I. Mertig , P. Zahn

On the basis of detailed first-principles calculations and semi-classical Boltzmann transport, the anisotropic thermoelectric transport properties of Bi$_2$Te$_3$ and Sb$_2$Te$_3$ under strain were investigated. It was found that due to…

材料科学 · 物理学 2011-10-31 N. F. Hinsche , B. Yu. Yavorsky , I. Mertig , P. Zahn

Combining first principles density functional theory and semi-classical Boltzmann transport, the anisotropic Lorenz function was studied for thermoelectric Bi$_{2}$Te$_{3}$/Sb$_{2}$Te$_{3}$ superlattices and their bulk constituents. It was…

材料科学 · 物理学 2015-06-05 N. F. Hinsche , I. Mertig , P. Zahn

On the basis of detailed ab initio studies the influence of strain on the anisotropy of the transport distribution of the thermoelectrics Bi$_2$Te$_3$ and Sb$_2$Te$_3$ was investigated. Both tellurides were studied in their own, as well as…

材料科学 · 物理学 2012-07-18 B. Y. Yavorsky , N. F. Hinsche , P. Zahn , I. Mertig

We investigate the low-temperature electrical and thermal transport properties in atomically precise metallic heterostructures involving strongly-correlated electron systems. The model of the Mott-insulator/ band-insulator superlattice was…

强关联电子 · 物理学 2008-06-19 Andreas Ruegg , Sebastian Pilgram , Manfred Sigrist

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…

We apply the generalized Boltzmann theory to describe thermoelectric transport properties of monolayer phosphorene in the presence of short- and long-range charged impurity interactions. First, we propose a low-energy Hamiltonian to explore…

介观与纳米尺度物理 · 物理学 2017-01-27 Moslem Zare , Babak Zare Rameshti , Farnood G. Ghamsari , Reza Asgari

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

Two-dimensional (2D) materials may have potential applications in thermoelectric devices. In this work, we systematically investigate the thermoelectric properties of orthorhombic group IV-VI monolayers $\mathrm{AB}$ (A=Ge and Sn; B=S and…

材料科学 · 物理学 2017-02-01 San-Dong Guo

Ternary intermetallic half-Heusler (HH) compounds (XYZ) with 18 valence electron count viz. ZrCoSb, ZrNiSn, and ZrPdSn, have revealed promising thermoelectric properties. Exemplarily, it has been experimentally observed that a slight change…

材料科学 · 物理学 2021-11-02 Parul R. Raghuvanshi , Dipanwita Bhattacharjee , Amrita Bhattacharya

Electronic and thermoelectric transport in zigzag monolayer WSe$_2$ nanoribbons are studied under monochromatic irradiation. The electronic structure is described within a six-orbital tight-binding framework constructed from the relevant…

介观与纳米尺度物理 · 物理学 2026-02-27 Cynthia Ihuoma Osuala , Tanu Choudhary , Raju K. Biswas , Sudin Ganguly , Santanu K. Maiti

In this study, we calculate the $T$=300 K scattering and thermoelectric transport properties of rhombohedral GeTe using first-principles modeling. The room-temperature phase of GeTe has a layered structure, with cross-plane and in-plane…

材料科学 · 物理学 2019-08-07 Vahid Askarpour , Jesse Maassen

Thermoelectric materials operating at cryogenic temperatures are in high demand for efficient cooling and power generation in applications ranging from superconductors to quantum computing. The narrow band-gap semiconductor FeSb2, known for…

材料科学 · 物理学 2023-11-02 Deepak Gujjar , Sunidhi Gujjar , V. K. Malik , 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

An ultralow lattice thermal conductivity of 0.14 W$\cdot$ m$^{-1} \cdot$ K$^{-1}$ along the $\vec b$ axis of As$_2$Se$_3$ single crystals was obtained at 300 K by first-principles calculations involving the density functional theory and the…

Recent studies demonstrate that novel 2D triphosphides semiconductors possess high carrier mobility and promising thermoelectric performance, while the carrier transport behaviors in 2D semimetal triphosphides have never been elucidated…

材料科学 · 物理学 2023-08-09 Yongchao Rao , C. Y. Zhao , Lei Shen , Shenghong Ju

Thermoelectric (TE) devices have been attracting increasing attention because of their ability to convert heat directly to electricity. To date, improving the TE figure of merit remains the key challenge. The advent of the topological…

介观与纳米尺度物理 · 物理学 2016-08-02 T. H. Wang , H. T. Jeng

We investigate electronic structures and thermoelectric properties of recent synthetic half-Heusler $\mathrm{ZrNiPb}$ by using generalized gradient approximation (GGA) and GGA plus spin-orbit coupling (GGA+SOC). Calculated results show that…

材料科学 · 物理学 2016-03-29 San-Dong Guo

We have investigated electron transport in Nb doped SrTiO$_3$ single crystals for two doping densities. We find that the resistivity and mobility are temperature dependent in both whereas the carrier concentration is almost temperature…

材料科学 · 物理学 2013-02-11 K. G. Rana , V. Khikhlovskyi , T. Banerjee

We conduct comprehensive investigations of both thermal and electrical transport properties of SnSe and SnS using first-principles calculations combined with the Boltzmann transport theory. Due to the distinct layered lattice structure,…

材料科学 · 物理学 2015-10-14 Ruiqiang Guo , Xinjiang Wang , Youdi Kuang , Baoling Huang
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