High thermoelectric performance of polycrystalline In4Se3−δ(CuI)x: synergistic effects of the Se-deficiency and CuI-doping

2016 ◽  
Vol 3 (12) ◽  
pp. 1566-1571 ◽  
Author(s):  
Yan-Chun Chen ◽  
Hua Lin ◽  
Li-Ming Wu
Keyword(s):  
Synergistic Effect ◽  
Power Factor ◽  
Figure Of Merit ◽  
Synergistic Effects ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
Se Deficiency

Synergistic effect of Se-deficiency and CuI-doping significantly enhances the thermoelectric figure-of-merit of the n-type polycrystalline In4Se3-based materials via improving the power factor. With In4Se2.95(CuI)0.01, ZT = 1.34 at 723 K, the highest value obtained for Pb-free polycrystalline In4Se3-based materials to date.

Enhanced thermoelectric performance through carrier scattering at heterojunction potentials in BiSbTe based composites with Cu3SbSe4 nanoinclusions

2015 ◽  
Vol 3 (27) ◽  
pp. 7045-7052 ◽  
Author(s):  
Yuanyue Li ◽  
Di Li ◽  
Xiaoying Qin ◽  
Xiuhui Yang ◽  
Yongfei Liu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Power Factor ◽  
Figure Of Merit ◽  
Lattice Thermal Conductivity ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
Carrier Scattering ◽  
Interface Scattering

Owing to enhanced power factor and reduced lattice thermal conductivity through interface scattering, a largest thermoelectric figure of merit ZT = 1.61 is achieved at 467 K for BiSbTe based composite with Cu3SbSe4 nanoinclusions.

Extraordinary thermoelectric performance of NaBaBi with degenerate and highly non-parabolic bands compared to LiBaSb and Bi2Te3

2021 ◽  
Author(s):  
Enamul Haque
Keyword(s):  
Fermi Level ◽  
Figure Of Merit ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure

This article reports the extraordinary thermoelectric figure of merit (ZT) of NaBaBi: degenerate bands, instead of the valley degeneracy of Bi2Te3, highly non-parabolic bands, and low DOS near the Fermi level of NaBaBi lead to an extraordinary ZTisotropic ≈ 1.60 at 350 K.

A strategy for boosting the thermoelectric performance of famatinite Cu3SbS4

2020 ◽  
Vol 22 (4) ◽  
pp. 2081-2086 ◽  
Author(s):  
Taiki Tanishita ◽  
Koichiro Suekuni ◽  
Hirotaka Nishiate ◽  
Chul-Ho Lee ◽  
Michitaka Ohtaki
Keyword(s):  
Figure Of Merit ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
Co Substitution

Co-substitution of Ge and P for Sb in Cu3SbS4 famatinite boosted dimensionless thermoelectric figure of merit.

The effects of Ge doping on the thermoelectric performance of p-type polycrystalline SnSe

RSC Advances ◽  
2016 ◽  
Vol 6 (115) ◽  
pp. 114825-114829 ◽  
Author(s):  
Tessera Alemneh Wubieneh ◽  
Cheng-Lung Chen ◽  
Pai Chun Wei ◽  
Szu-Yuan Chen ◽  
Yang-Yuan Chen
Keyword(s):  
Figure Of Merit ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
P Type ◽  
Ge Doping

Ge doping enables to enhance the thermoelectric figure of merit of SnSe..

High thermoelectric performance of topological half-Heusler compound LaPtBi achieved by hydrostatic pressure

2020 ◽  
Vol 22 (26) ◽  
pp. 14621-14629 ◽  
Author(s):  
Suiting Ning ◽  
Shan Huang ◽  
Ziye Zhang ◽  
Renqi Zhang ◽  
Ning Qi ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Figure Of Merit ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
Heusler Compound

The thermoelectric figure of merit (ZT) in LaPtBi shows an overall increase with increasing hydrostatic pressure.

High thermoelectric performance for an Ag2Se-based material prepared by a wet chemical method

2020 ◽  
Vol 4 (3) ◽  
pp. 875-880
Author(s):  
D. Li ◽  
J. H. Zhang ◽  
J. M. Li ◽  
J. Zhang ◽  
X. Y. Qin
Keyword(s):  
Figure Of Merit ◽  
Chemical Method ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Wet Chemical Method ◽  
Thermoelectric Figure ◽  
Chemical Route ◽  
Alloy Nanocrystals ◽  
Wet Chemical

Herein, a facile solution chemical route has been developed for synthesis of Ag2Se-based alloy nanocrystals and high thermoelectric figure of merit has been obtained.

Enhanced thermoelectric performance of GeTe through in situ microdomain and Ge-vacancy control

2019 ◽  
Vol 7 (25) ◽  
pp. 15181-15189 ◽  
Author(s):  
Khasim Saheb Bayikadi ◽  
Raman Sankar ◽  
Chien Ting Wu ◽  
Chengliang Xia ◽  
Yue Chen ◽  
...  
Keyword(s):  
High Temperature ◽  
Figure Of Merit ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
Vacancy Level

The thermoelectric figure-of-merit (ZT) for GeTe powder is able to be raised from ∼0.8 to 1.37 at high temperature near ∼500 °C by tuning the Ge vacancy level through a reversible in situ route.

Regulation of Ge Vacancies through Sm Doping boosting Superior Thermoelectric Performance in GeTe

2022 ◽  
Author(s):  
Tingdong Zhang ◽  
Shuping Deng ◽  
Xiaodie Zhao ◽  
Xuefeng Ruan ◽  
Ning Qi ◽  
...  
Keyword(s):  
Transport Properties ◽  
Thermal Transport ◽  
Figure Of Merit ◽  
Thermoelectric Performance ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
Thermal Transport Properties ◽  
P Type

A high thermoelectric figure of merit ZT of 2.5 at 730 K is achieved in p-type Ge1−xSmxTe through synergetic optimization of electrical and thermal transport properties. Sm doping effectively suppresses...

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