Anisotropic thermoelectric properties of Weyl semimetal NbX (X = P and As): a potential thermoelectric material

2019 ◽  
Vol 21 (27) ◽  
pp. 15167-15176 ◽  
Author(s):  
Yu Zhou ◽  
Ying-Qin Zhao ◽  
Zhao-Yi Zeng ◽  
Xiang-Rong Chen ◽  
Hua-Yun Geng
Keyword(s):  
Transport Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Weyl Semimetal

Weyl semimetal, a newly developed thermoelectric material, has aroused much interest due to its extraordinary transport properties.

Enhanced thermoelectric properties of p-type Ag2Te by Cu substitution

2015 ◽  
Vol 3 (19) ◽  
pp. 10303-10308 ◽  
Author(s):  
Hangtian Zhu ◽  
Jun Luo ◽  
Huaizhou Zhao ◽  
Jingkui Liang
Keyword(s):  
Transport Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Cu Substitution ◽  
P Type

p-type Ag2Te is improved to be a promising thermoelectric material by Cu substitution, which enables the formation of a novel layered nanostructure and substantially modulates the transport properties.

scholarly journals Correction: Intrinsic defect formation and the effect of transition metal doping on transport properties in a ductile thermoelectric material α-Ag2S: a first-principles study

2021 ◽  
Author(s):  
Ho Ngoc Nam ◽  
Ryo Yamada ◽  
Haruki Okumura ◽  
Tien Quang Nguyen ◽  
Katsuhiro Suzuki ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transport Properties ◽  
Thermoelectric Material ◽  
First Principles ◽  
Defect Formation ◽  
Chem Phys ◽  
Intrinsic Defect ◽  
Transition Metal Doping ◽  
Metal Doping ◽  
First Principles Study

Correction for ‘Intrinsic defect formation and the effect of transition metal doping on transport properties in a ductile thermoelectric material α-Ag2S: a first-principles study’ by Ho Ngoc Nam et al., Phys. Chem. Chem. Phys., 2021, DOI: 10.1039/d0cp06624a.

Effect of Electron-Phonon Coupling on Transport Properties of Monolayers of ZrS2, BiI3 and PbI2: A thermoelectric Perspective

2021 ◽  
Author(s):  
Gautam Sharma ◽  
Vineet Kumar Pandey ◽  
Shouvik Datta ◽  
Prasenjit Ghosh
Keyword(s):  
Relaxation Time ◽  
Band Structure ◽  
Transport Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Waste Heat ◽  
Transport Coefficients ◽  
Electrical Energy ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

Thermoelectric materials are used for conversion of waste heat to electrical energy. The transport coefficients that determine their thermoelectric properties depend on the band structure and the relaxation time of...

Thermoelectric Properties of K2Bi8−xSbxSe13Solid Solutions and Se Doping

2001 ◽  
Vol 691 ◽  
Author(s):  
Theodora Kyratsi ◽  
Jeffrey S. Dyck ◽  
Wei Chen ◽  
Duck-Young Chung ◽  
Ctirad Uher ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Charge Transport ◽  
Transport Properties ◽  
Thermoelectric Properties ◽  
Solid Solutions ◽  
Figure Of Merit ◽  
Lattice Thermal Conductivity ◽  
Se Doping ◽  
Mass Fluctuation ◽  
Thermal Conductivities

ABSTRACTOur efforts to improve the thermoelectric properties of β-K2Bi8Se13, led to systematic studies of solid solutions of the type β-K2Bi8−xSbxSe13. The charge transport properties and thermal conductivities were studied for selected members of the series. Lattice thermal conductivity decreases due to the mass fluctuation generated in the lattice by the mixed occupation of Sb and Bi atoms. Se excess as a dopant was found to increase the figure-of merit of the solid solutions.

Magnetic and thermoelectric properties of the ternary pseudo-hollandite BaxCr5Se8 (0.5 < x < 0.55) solid solution

2016 ◽  
Vol 45 (30) ◽  
pp. 12119-12126 ◽  
Author(s):  
Robin Lefèvre ◽  
David Berthebaud ◽  
Sabah Bux ◽  
Sylvie Hébert ◽  
Franck Gascoin
Keyword(s):  
Solid Solution ◽  
Transport Properties ◽  
Thermoelectric Properties

The modification of the Ba content within the pseudo hollandite BaxCr5Se8 leads to remarkable variations of the transport properties.

Synthesis, crystal structure and thermoelectric properties of a new metal telluride Ba3Ag3InTe6

2017 ◽  
Vol 4 (9) ◽  
pp. 1458-1464 ◽  
Author(s):  
M.-Y. Lee ◽  
D. I. Bilc ◽  
E. Symeou ◽  
Y.-C. Lin ◽  
I.-C. Liang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Transport Properties ◽  
Valence Band ◽  
Thermoelectric Properties ◽  
Type Semiconductor ◽  
P Type

A new p-type semiconductor Ba3Ag3InTe6 with transport properties dominated by the layer [Ag3Te4]5− distributed in the valence band.

scholarly journals Anisotropy in the electronic transport properties of Weyl semimetal WTe2 single crystals

AIP Advances ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 101332 ◽  
Author(s):  
Rajveer Jha ◽  
Shota Onishi ◽  
Ryuji Higashinaka ◽  
Tatsuma D. Matsuda ◽  
Raquel A. Ribeiro ◽  
...  
Keyword(s):  
Transport Properties ◽  
Single Crystals ◽  
Electronic Transport ◽  
Electronic Transport Properties ◽  
Weyl Semimetal

Thermoelectric transport in conductive poly(3,4-ethylenedioxythiophene)

2021 ◽  
Author(s):  
Meng Li ◽  
Zuzhi Bai ◽  
Xiao Chen ◽  
Cong-Cong Liu ◽  
Jing-Kun Xu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Flexible Electronics ◽  
Theoretical Research ◽  
Thermoelectric Transport ◽  
The Future ◽  
Basic Physics ◽  
Insight Into ◽  
Theory And Experiment

Abstract Poly(3,4-ethylenedioxythiophene) (PEDOT) has proved its quite competitive thermoelectric properties in flexible electronics with its excellent electrical and mechanical properties. Since the early discovery of PEDOT, considerable experimental progress has been achieved in optimizing and improving thermoelectric properties as a promising organic thermoelectric material (OTE). Among them, theoretical research has made significant contributions to its development. Here the basic physics of conductive PEDOT are reviewed based on the combination of theory and experiment. Its purpose is to provide a new insight into the development of PEDOT, so as to effectively design and preparation of advanced thermoelectric PEDOT material in the future.

DFT study of structural, elastic, electronic, magnetic, thermal and transport properties of new multifunctional NiVSn half-Heusler for spintronic and thermoelectric applications

2021 ◽  
pp. 2150202
Author(s):  
Y. Bouldiab ◽  
S. terkhi ◽  
Z. Aziz ◽  
F. Bendahma ◽  
M. A. Bennani ◽  
...  
Keyword(s):  
Transport Properties ◽  
Thermoelectric Properties ◽  
Density Functional ◽  
Extreme Temperature ◽  
Ferromagnetic State ◽  
Debye Model ◽  
Generalized Gradient ◽  
Metallic Behavior ◽  
Half Metallic ◽  
High Seebeck Coefficient

In this work, the first-principles density functional calculations of the structural, elastic, electronic, magnetic, thermal and thermoelectric properties of NiVSn half-Heusler compound are carried out. The exchange and correlation potential are treated by using Generalized Gradient approximation of Perdew, Burke and Ernzerhof (GGA-PBE), GGA plus Tran–Blaha-modified Becke–Johnson (mBJ-GGA) approach and mBJ-GGA+U where U is the Hubbard on-site Coulomb interaction correction (mBJ-GGA+U). Structural calculations revealed that NiVSn is stable in type 1 structure ferromagnetic state. Elastic properties show that our compound is mechanically stable, ductile and anisotropic. The results of the band structures and density of states display a half metallic behavior of NiVSn with an indirect bandgap of 0.476, 0.508 and 0.845 eV by using GGA-PBE, mBJ-GGA, and mBJ-GGA+U, respectively. The total magnetic moment calculated is integer of 1 [Formula: see text]B confirming a half metallic behavior of NiVSn and follows the well-known Slater–Pauling rule ([Formula: see text]); therefore, the studied compound is suitable for application in spintronic fields. The thermodynamic properties such as bulk modulus, the heat capacity, the Debye temperature, and the thermal expansion coefficient are investigated using quasi-harmonic Debye model (QHDM). The thermal results show that NiVSn can be applied in extreme temperature and pressure conditions. The thermoelectric properties are studied employing the BoltzTrap code. The calculated transport properties are very interesting for the spin-down channel with high electrical conductivity, high Seebeck coefficient, and figure of merit value approaching unity. As a result, the half-Heusler alloy NiVSn is a promoter for conventional thermoelectric materials.

scholarly journals Outstanding thermoelectric properties of solvothermal-synthesized Sn1−3xInxAg2xTe micro-crystals through defect engineering and band tuning

2020 ◽  
Vol 8 (7) ◽  
pp. 3978-3987 ◽  
Author(s):  
Raza Moshwan ◽  
Wei-Di Liu ◽  
Xiao-Lei Shi ◽  
Qiang Sun ◽  
Han Gao ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Transport Properties ◽  
Valence Band ◽  
Thermoelectric Properties ◽  
Electrical Transport ◽  
Energy Levels ◽  
Resonance Energy ◽  
Defect Engineering ◽  
Electrical Transport Properties ◽  
Co Doping

In eco-friendly SnTe thermoelectrics, In and Ag co-doping induces the synergistic effect of resonance energy levels and valence band convergence to enhance its electrical transport properties, while defects ameliorates its thermal transport.

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