Enhanced Average Thermoelectric Figure of Merit of p-Type Zintl Phase Mg2ZnSb2 via Zn Vacancy Tuning and Hole Doping

2020 ◽  
Vol 12 (33) ◽  
pp. 37330-37337
Author(s):  
Yi Niu ◽  
Chengcheng Yang ◽  
Ting Zhou ◽  
Yan Pan ◽  
Jie Song ◽  
...  
Keyword(s):  
Figure Of Merit ◽  
Hole Doping ◽  
Thermoelectric Figure Of Merit ◽  
Zintl Phase ◽  
Thermoelectric Figure ◽  
P Type ◽  
Zn Vacancy

Significantly enhanced thermoelectric figure of merit of p-type Mg3Sb2-based Zintl phase compounds via nanostructuring and employing high energy mechanical milling coupled with spark plasma sintering

2015 ◽  
Vol 3 (20) ◽  
pp. 10777-10786 ◽  
Author(s):  
A. Bhardwaj ◽  
N. S. Chauhan ◽  
D. K. Misra
Keyword(s):  
Thermoelectric Materials ◽  
Mechanical Milling ◽  
Figure Of Merit ◽  
High Energy ◽  
Thermoelectric Figure Of Merit ◽  
Zintl Phase ◽  
Thermoelectric Figure ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
P Type

Several nanostructuring methods have been demonstrated to produce a variety of nanostructured materials, and these methods are well recognized as effective paradigms for improving the performance of thermoelectric materials.

High-Thermoelectric Figure of Merit Realized in p-Type Half-Heusler Compounds: ZrCoSnxSb1-x

2007 ◽  
Vol 46 (No. 27) ◽  
pp. L673-L675 ◽  
Author(s):  
Takeyuki Sekimoto ◽  
Ken Kurosaki ◽  
Hiroaki Muta ◽  
Shinsuke Yamanaka
Keyword(s):  
Figure Of Merit ◽  
Thermoelectric Figure Of Merit ◽  
Heusler Compounds ◽  
Thermoelectric Figure ◽  
P Type

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..

scholarly journals Термоэлектрические свойства нанокомпозитного Bi-=SUB=-0.45-=/SUB=-Sb-=SUB=-1.55-=/SUB=-Te-=SUB=-2.985-=/SUB=- с микрочастицами SiO-=SUB=-2-=/SUB=-

2019 ◽  
Vol 53 (6) ◽  
pp. 751
Author(s):  
А.А. Шабалдин ◽  
П.П. Константинов ◽  
Д.А. Курдюков ◽  
Л.Н. Лукьянова ◽  
А.Ю. Самунин ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Solid Solution ◽  
Electrical Conductivity ◽  
Wide Temperature Range ◽  
Figure Of Merit ◽  
Nanostructured Material ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Efficiency ◽  
Thermoelectric Figure ◽  
P Type

AbstractNanocomposite thermoelectrics based on Bi_0.45Sb_1.55Te_2.985 solid solution of p -type conductivity are fabricated by the hot pressing of nanopowders of this solid solution with the addition of SiO_2 microparticles. Investigations of the thermoelectric properties show that the thermoelectric power of the nanocomposites increases in a wide temperature range of 80–420 K, while the thermal conductivity considerably decreases at 80–320 K, which, despite a decrease in the electrical conductivity, leads to an increase in the thermoelectric efficiency in the nanostructured material without the SiO_2 addition by almost 50% (at 300 K). When adding SiO_2, the efficiency decreases. The initial thermoelectric fabricated without nanostructuring, in which the maximal thermoelectric figure of merit ZT = 1 at 390 K, is most efficient at temperatures above 350 K.

Enhanced thermoelectric figure of merit in p-type Ag-doped ZnSb nanostructured with Ag3Sb

2013 ◽  
Vol 69 (5) ◽  
pp. 397-400 ◽  
Author(s):  
Ding-Bang Xiong ◽  
Norihiko L. Okamoto ◽  
Haruyuki Inui
Keyword(s):  
Figure Of Merit ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
P Type

Doubled Thermoelectric Figure of Merit in p-Type β-FeSi2 via Synergistically Optimizing Electrical and Thermal Transports

2020 ◽  
Vol 12 (11) ◽  
pp. 12901-12909 ◽  
Author(s):  
Xiaolong Du ◽  
Pengfei Qiu ◽  
Jun Chai ◽  
Tao Mao ◽  
Ping Hu ◽  
...  
Keyword(s):  
Figure Of Merit ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
P Type

Enhanced thermoelectric figure of merit in p-type Bi0.48Sb1.52Te3 alloy with WSe2 addition

2014 ◽  
Vol 2 (22) ◽  
pp. 8512 ◽  
Author(s):  
Yukun Xiao ◽  
Guoxin Chen ◽  
Haiming Qin ◽  
Menglei Wu ◽  
Zhepeng Xiao ◽  
...  
Keyword(s):  
Figure Of Merit ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
P Type

Thermal Conductivity of Zn4−xCdxSb3 Solid Solutions

1997 ◽  
Vol 478 ◽  
Author(s):  
T. Caillat ◽  
A. Borshchevsky ◽  
J. -P. Fleurial
Keyword(s):  
Thermal Conductivity ◽  
High Performance ◽  
Figure Of Merit ◽  
Lattice Thermal Conductivity ◽  
State Of The Art ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
Jet Propulsion ◽  
P Type ◽  
Electrical Conductors

Abstractβ-Zn4Sb3 was recently identified at the Jet Propulsion Laboratory as a new high performance p-type thermoelectric material with a maximum dimensionless thermoelectric figure of merit ZT of 1.4 at a temperature of 673K. A usual approach, used for many state-of-the-art thermoelectric materials, to further improve ZT values is to alloy β-Zn4Sb3 with isostructural compounds because of the expected decrease in lattice thermal conductivity. We have grown Zn4−xCdxSb3 crystals with 0.2≤x<1.2 and measured their thermal conductivity from 10 to 500K. The thermal conductivity values of Zn4−xCdxSb3 alloys are significantly lower than those measured for β-Zn4Sb3 and are comparable to its calculated minimum thermal conductivity. A strong atomic disorder is believed to be primarily at the origin of the very low thermal conductivity of these materials which are also fairly good electrical conductors and are therefore excellent candidates for thermoelectric applications.

Enhanced thermoelectric figure of merit in p-type BiSbTeSe alloy with ZnSb addition

2013 ◽  
Vol 1 (3) ◽  
pp. 966-969 ◽  
Author(s):  
Ting Zhang ◽  
Jun Jiang ◽  
Yukun Xiao ◽  
Yongbiao Zhai ◽  
Shenghui Yang ◽  
...  
Keyword(s):  
Figure Of Merit ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
P Type
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