Enhancement of the thermoelectric properties of n-type PbTe by Na and Cl co-doping

2015 ◽  
Vol 3 (37) ◽  
pp. 9559-9564 ◽  
Author(s):  
I. Cohen ◽  
M. Kaller ◽  
G. Komisarchik ◽  
D. Fuks ◽  
Y. Gelbstein
Keyword(s):  
Thermoelectric Properties ◽  
Environmental Effects ◽  
Fossil Fuels ◽  
Thermoelectric Efficiency ◽  
Co Doping

In an attempt to reduce our reliance on fossil fuels, associated with severe environmental effects, the current research is focused on the enhancement of the direct thermal to electrical thermoelectric efficiency of n-type PbTe by Na and Cl co-doping.

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.

Nanostructuring SnTe to improve thermoelectric properties through Zn and Sb co-doping

2020 ◽  
Vol 4 (11) ◽  
pp. 5645-5653
Author(s):  
Samuel Kimani Kihoi ◽  
Ho Seong Lee
Keyword(s):  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Temperature Range ◽  
Co Doping

A complex microstructure resulting in SnTe based thermoelectric materials with improved properties in the mid temperature range.

scholarly journals Enhanced Thermoelectric Properties of WS2/Single-Walled Carbon Nanohorn Nanocomposites

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 140 ◽  
Author(s):  
Ji Hoon Kim ◽  
Seunggun Yu ◽  
Sang Won Lee ◽  
Seung-Yong Lee ◽  
Keun Soo Kim ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
High Frequency ◽  
Figure Of Merit ◽  
Thermoelectric Efficiency ◽  
Thermoelectric Figure ◽  
Carbon Nanohorns ◽  
Single Walled Carbon ◽  
High Frequency Induction

Recently, two-dimensional tungsten disulfide (WS2) has attracted attention as a next generation thermoelectric material due to a favorable Seebeck coefficient. However, its thermoelectric efficiency still needs to be improved due to the intrinsically low electrical conductivity of WS2. In the present study, thermoelectric properties of WS2 hybridized with highly conductive single-walled carbon nanohorns (SWCNHs) were investigated. The WS2/SWCNH nanocomposites were fabricated by annealing the mixture of WS2 and SWCNHs using a high-frequency induction heated sintering (HFIHS) system. By adding SWCNHs to WS2, the nanocomposites exhibited increased electrical conductivity and a slightly decreased Seebeck coefficient with the content of SWCNHs. Hence, the maximum power factor of 128.41 μW/mK2 was achieved for WS2/SWCNHs with 0.1 wt.% SWCNHs at 780 K, resulting in a significantly improved thermoelectric figure of merit (zT) value of 0.027 compared to that of pristine WS2 with zT 0.017.

Se-Sm co-doping strategy for tuning the structural and thermoelectric properties of GeTe-PbTe based alloys

2018 ◽  
Vol 157 ◽  
pp. 394-401 ◽  
Author(s):  
Chunxiao Zhang ◽  
Caiyan Wang ◽  
Yucheng Xie ◽  
Bin Chen ◽  
Chaohua Zhang
Keyword(s):  
Thermoelectric Properties ◽  
Co Doping

scholarly journals Optimization of thermoelectric efficiency in SnTe: the case for the light band

2014 ◽  
Vol 16 (38) ◽  
pp. 20741-20748 ◽  
Author(s):  
Min Zhou ◽  
Zachary M. Gibbs ◽  
Heng Wang ◽  
Yemao Han ◽  
Caini Xin ◽  
...  
Keyword(s):  
Valence Band ◽  
Thermoelectric Properties ◽  
Band Model ◽  
Thermoelectric Efficiency ◽  
Light Band

Enhanced thermoelectric properties of SnTe are obtained by counter-doping with iodine as predicted using a two-valence-band model.

Effects of Dy and Yb co-doping on thermoelectric properties of CaMnO3 ceramics

2015 ◽  
Vol 41 (1) ◽  
pp. 1535-1539 ◽  
Author(s):  
Yuan-Hu Zhu ◽  
Wen-Bin Su ◽  
Jian Liu ◽  
Yu-Cheng Zhou ◽  
Jichao Li ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Co Doping

scholarly journals Enhanced thermoelectric efficiency in ferromagnetic silicene nanoribbons terminated with hydrogen atoms

2014 ◽  
Vol 16 (25) ◽  
pp. 12900-12908 ◽  
Author(s):  
K. Zberecki ◽  
R. Swirkowicz ◽  
M. Wierzbicki ◽  
J. Barnaś
Keyword(s):  
Ab Initio ◽  
Thermoelectric Properties ◽  
Thermoelectric Efficiency ◽  
Hydrogen Atoms ◽  
Silicene Nanoribbons

Using ab initio methods we calculate thermoelectric and spin thermoelectric properties of silicene nanoribbons with bare, mono-hydrogenated and di-hydrogenated edges.

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