scholarly journals Theory of enhancement of thermoelectric properties of materials with nanoinclusions

2008 ◽  
Vol 77 (21) ◽  
Author(s):  
Sergey V. Faleev ◽  
François Léonard
Keyword(s):  
Thermoelectric Properties ◽  
Properties Of Materials

Phase Composition and Thermoelectric Properties of Materials Based on Cu2 – xSe (0.03 ≤ x ≤ 0.23)

2021 ◽  
Vol 16 (3) ◽  
pp. 351-356
Author(s):  
A. A. Ivanov ◽  
R. Kh. Akchrin ◽  
D. I. Bogomolov ◽  
V. T. Bublik ◽  
M. V. Voronov ◽  
...  
Keyword(s):  
Phase Composition ◽  
Thermoelectric Properties ◽  
Properties Of Materials

High-Temperature Thermoelectric Properties of Pb1-xSnxTe:In

2007 ◽  
Vol 1044 ◽  
Author(s):  
Vladimir Jovovic ◽  
Suraj Joottu Thiagarajan ◽  
Joseph P. Heremans ◽  
Dmitry Khokhlov ◽  
Tanya Komissarova ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Fermi Level ◽  
Thermoelectric Properties ◽  
Carrier Mobility ◽  
Temperature Dependent ◽  
Resonant Energy ◽  
Properties Of Materials ◽  
Valence Bands ◽  
Increasing Temperature ◽  
Positive Effect

AbstractIndium in Pb1-xSnxTe alloys forms a resonant energy level in the conduction or valence bands, depending on x. In this study we investigate temperature dependence of the In level from 80 to 400K, complementing our previous work at 80 K. Measurements of electrical resistivity, thermopower, Hall and transverse Nernst-Ettinghausen effect are used to assess carrier mobility, Fermi level and scattering coefficient. Measurements are performed on a set of p and n type Pb1-xSnxTe:In with 0 < x < 30 at% and In up to 3 at%. We show that with increasing temperature the Fermi level crosses into the gap. It had been suggested theoretically that hybridization of the In level with one band at the Fermi level could have had a positive effect on the thermoelectric properties of materials, but the present results illustrate the need for temperature-dependent modeling and experimentation.

scholarly journals Research Advances of Typical Two Dimensional Layered Thermoelectric Materials

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Haihua HUANG ◽  
Xiaofeng FAN
Keyword(s):  
Structural Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Electronic Devices ◽  
Layered Materials ◽  
Two Dimensional ◽  
The Past ◽  
2D Layered Materials ◽  
Potential Applications ◽  
Properties Of Materials

Thermoelectric technologies have caught our intense attention due to their ability of heat conversion into electricity. The considerable efforts have been taken to develop and enhance thermoelectric properties of materials over the past several decades. Recently, two-dimensional layered materials are making the promise for potential applications of thermoelectric devices because of the excellent physical and structural properties. Here, a comprehensive coverage about recent progresses in thermoelectric properties of typical two dimensional (2D) layered materials, including the theoretical and experimental results, is provided. Moreover, the potential applications of 2D thermoelectric materials are also involved. These results indicate that the development of 2D thermoelectric materials take a key role in the flexible electronic devices with thermoelectric technologies.

Ensemble-machine-learning-based correlation analysis of internal and band characteristics of thermoelectric materials

2020 ◽  
Vol 8 (37) ◽  
pp. 13079-13089
Author(s):  
Lihao Chen ◽  
Ben Xu ◽  
Jia Chen ◽  
Ke Bi ◽  
Changjiao Li ◽  
...  
Keyword(s):  
Machine Learning ◽  
Electrical Conductivity ◽  
Correlation Analysis ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Ensemble Machine Learning ◽  
Properties Of Materials

Machine learning can significantly help to predict the thermoelectric properties of materials, such as the Seebeck coefficient and electrical conductivity.

Thermoelectric properties of germanium telluride with fine-grained structure

2020 ◽  
Vol 11 ◽  
pp. 15-25
Author(s):  
L. D. Ivanova ◽  
◽  
Yu. V. Granatkina ◽  
I. Yu. Nikhezina ◽  
A. G. Malchev ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Melt Spinning ◽  
High Energy ◽  
Grain Structure ◽  
Thermoelectric Efficiency ◽  
Fine Grained ◽  
Germanium Telluride ◽  
Fine Grained Structure ◽  
Properties Of Materials ◽  
P Type

The microstructure and thermoelectric properties of materials based on germanium telluride p-type conductivity doped with copper and bismuth obtained by hot pressing of three types powders prepared by grinding an ingot to a size of hundreds microns (0.315  mm) to hundreds of nanometers (mechanical activation) in planetary high-energy mill and melt spinning were investigated. The microstructure of the samples were analyzed by optical and electron scanning microscopies. The nanoscale grain structure of these samples was established. The thermoelectric characteristics of the materials: Seebeck coefficient, electrical and thermal conductivities, were measured both at room temperature and in the temperature range of 100 – 800 K. The slopes of these dependencies are estimated. The coefficient of thermoelectric figure of merit is calculated. The higher thermoelectric efficiency (ZT = 1.5 at 600 K) was received for the samples hot-pressed from granules, prepared by melt spinning.

scholarly journals Strain effects on phonon transport in antimonene investigated using a first-principles study

2017 ◽  
Vol 19 (22) ◽  
pp. 14520-14526 ◽  
Author(s):  
Ai-Xia Zhang ◽  
Jiang-Tao Liu ◽  
San-Dong Guo ◽  
Hui-Chao Li
Keyword(s):  
Thermoelectric Properties ◽  
First Principles ◽  
Strain Engineering ◽  
Phonon Transport ◽  
Strain Effects ◽  
First Principles Study ◽  
Properties Of Materials

Strain engineering is a very effective method to continuously tune the electronic, topological, optical and thermoelectric properties of materials.

scholarly journals The Thermal, Electrical and Thermoelectric Properties of Graphene Nanomaterials

Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 218 ◽  
Author(s):  
Jingang Wang ◽  
Xijiao Mu ◽  
Mengtao Sun
Keyword(s):  
Thermoelectric Properties ◽  
Atomic Level ◽  
Boundary Structure ◽  
Film Material ◽  
Two Dimensional ◽  
Electrical Characteristics ◽  
Thin Film Material ◽  
Nanometer Material ◽  
Properties Of Materials ◽  
Structure Configuration

Graphene, as a typical two-dimensional nanometer material, has shown its uniqueapplication potential in electrical characteristics, thermal properties, and thermoelectric propertiesby virtue of its novel electronic structure. The field of traditional material modification mainlychanges or enhances certain properties of materials by mixing a variety of materials (to form aheterostructure) and doping. For graphene as well, this paper specifically discusses the use oftraditional modification methods to improve graphene’s electrical and thermoelectrical properties.More deeply, since graphene is an atomic-level thin film material, its shape and edge conformation(zigzag boundary and armchair boundary) have a great impact on performance. Therefore, thispaper reviews the graphene modification field in recent years. Through the change in the shape ofgraphene, the change in the boundary structure configuration, the doping of other atoms, and theformation of a heterostructure, the electrical, thermal, and thermoelectric properties of graphenechange, resulting in broader applications in more fields. Through studies of graphene’s electrical,thermal, and thermoelectric properties in recent years, progress has been made not only inexperimental testing, but also in theoretical calculation. These aspects of graphene are reviewed inthis paper.

Absolute Method for Measuring of Thermoelectric Properties of Materials

2015 ◽  
Vol 2 (2) ◽  
pp. 737-743
Author(s):  
L.I. Anatychuk ◽  
M.V. Havryliuk ◽  
V.V. Lysko
Keyword(s):  
Thermoelectric Properties ◽  
Absolute Method ◽  
Properties Of Materials
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