Thermoelectric properties of p-type Ag1-x(Pb1-ySny)mSb1-zTem+2

被引：5
作者：
Ahn, Kyunghan [1 ,3 ]
Kong, Huijun [2 ]
Uher, Ctirad [2 ]
Kanatzidis, Mercouri G. [1 ]
机构：
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[2] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
[3] Inst for Basic Sci Korea, Ctr Nanoparticle Res, Seoul 151742, South Korea
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2016年 / 242卷
关键词：
Thermoelectricity; Chalcogenides; PERFORMANCE BULK THERMOELECTRICS; PBTE-MTE M; NANOSTRUCTURED THERMOELECTRICS; POWER-GENERATION; RESONANCE LEVELS; FIGURE; MERIT; EFFICIENCY; SNTE; ENHANCEMENT;
D O I：
10.1016/j.jssc.2016.03.018
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The thermoelectric properties of Ag1-x(Pb1-ySny)(m)Sb1-zTem+2 (4 <= m <= 16, -0.1 <= x <= 0.3,1/3 <= y <= 2/3, 0.2 <= z <= 0.4; Lead Antimony Silver Tellurium Tin, LASTT-m) compositions were investigated in the temperature range of 300 to similar to 670 K. All samples crystallize in the average NaCl-type structure without any noticeable second phase and exhibit very narrow bandgaps of < 0.1 eV. We studied a range of m values, silver concentrations (x), Pb/Sn ratios (y), and antimony concentrations (z) to determine their effects on the thermoelectric properties. The samples were investigated as melt grown polycrystalline ingots. Varying the Ag contents, the Pb/Sn ratios, and the Sb contents off-stoichiometry allowed us to control the electrical conductivity, the Seebeck coefficient, and the thermal conductivity. The electrical conductivity tends to decrease with decreasing m values. The highest ZT of similar to 1.1 was achieved at similar to 660 K for Ag0.9Pb5Sn5Sb0.8Te12 mainly due to the very low lattice thermal conductivity of similar to 0.4 W/(m K) around 660 K. Also, samples with charge-balanced stoichiometries, Ag(Pb1-ySny)(m)SbTem+2, were studied and found to exhibit a lower power factor and higher lattice thermal conductivity than the Ag1-x(Pb1-ySny)(m)Sb1-zTem+2 compositions. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码：34 / 42
页数：9
相关论文
共 47 条
[1]   Enhanced thermoelectric properties of p-type nanostructured PbTe-MTe (M = Cd, Hg) materials [J].
Ahn, Kyunghan ;
Biswas, Kanishka ;
He, Jiaqing ;
Chung, In ;
Dravid, Vinayak ;
Kanatzidis, Mercouri G. .
ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (05) :1529-1537
[2]   Exploring Resonance Levels and Nanostructuring in the PbTe-CdTe System and Enhancement of the Thermoelectric Figure of Merit [J].
Ahn, Kyunghan ;
Han, Mi-Kyung ;
He, Jiaqing ;
Androulakis, John ;
Ballikaya, Sedat ;
Uher, Ctirad ;
Dravid, Vinayak P. ;
Kanatzidis, Mercouri G. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (14) :5227-5235
[3]   Improvement in the Thermoelectric Figure of Merit by La/Ag Cosubstitution in PbTe [J].
Ahn, Kyunghan ;
Li, Changpeng ;
Uher, Ctirad ;
Kanatzidis, Mercouri G. .
CHEMISTRY OF MATERIALS, 2009, 21 (07) :1361-1367
[4]   MOBILITY OF ELECTRONS AND HOLES IN PBS, PBSE, AND PBTE BETWEEN ROOM TEMPERATURE AND 4.2-DEGREES-K [J].
ALLGAIER, RS ;
SCANLON, WW .
PHYSICAL REVIEW, 1958, 111 (04) :1029-1037
[5]   Nanostructuring and high thermoelectric efficiency in p-type Ag(Pb1-ySny)mSbTe2+m [J].
Androulakis, John ;
Hsu, Kuei Fang ;
Pcionek, Robert ;
Kong, Huijun ;
Uher, Ctirad ;
DAngelo, Jonathan J. ;
Downey, Adam ;
Hogan, Tim ;
Kanatzidis, Mercouri G. .
ADVANCED MATERIALS, 2006, 18 (09) :1170-+
[6]   Spinodal decomposition and nucleation and growth as a means to bulk nanostructured thermoelectrics:: Enhanced performance in Pb1-xSnxTe-PbS [J].
Androulakis, John ;
Lin, Chia-Her ;
Kong, Hun-Jin ;
Uher, Ctirad ;
Wu, Chun-I ;
Hogan, Timothy ;
Cook, Bruce A. ;
Caillat, Thierry ;
Paraskevopoulos, Konstantinos M. ;
Kanatzidis, Mercouri G. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (31) :9780-9788
[7]   Coexistence of large thermopower and degenerate doping in the nanostructured material Ag0.85SnSb1.15Te3 [J].
Androulakis, John ;
Pcionek, Robert ;
Quarez, Eric ;
Do, Jun-Huang ;
Kong, Huijun ;
Palchik, Oleg ;
Uher, C. ;
D'Angelo, Jonathan James ;
Short, Jarrod ;
Hogan, Tim ;
Kanatzidis, Mercouri G. .
CHEMISTRY OF MATERIALS, 2006, 18 (20) :4719-4721
[8]   Thermoelectric enhancement in PbTe with K or Na codoping from tuning the interaction of the light- and heavy-hole valence bands [J].
Androulakis, John ;
Todorov, Iliya ;
Chung, Duck-Young ;
Ballikaya, Sedat ;
Wang, Guoyu ;
Uher, Ctirad ;
Kanatzidis, Mercouri .
PHYSICAL REVIEW B, 2010, 82 (11)
[9]   Cooling, heating, generating power, and recovering waste heat with thermoelectric systems [J].
Bell, Lon E. .
SCIENCE, 2008, 321 (5895) :1457-1461
[10]   High-performance bulk thermoelectrics with all-scale hierarchical architectures [J].
Biswas, Kanishka ;
He, Jiaqing ;
Blum, Ivan D. ;
Wu, Chun-I ;
Hogan, Timothy P. ;
Seidman, David N. ;
Dravid, Vinayak P. ;
Kanatzidis, Mercouri G. .
NATURE, 2012, 489 (7416) :414-418
12345