High thermoelectric figure of merit in heavy hole dominated PbTe

被引：652
|
作者：
Pei, Yanzhong [1 ]
LaLonde, Aaron [1 ]
Iwanaga, Shiho [1 ]
Snyder, G. Jeffrey [1 ]
机构：
[1] CALTECH, Pasadena, CA 91125 USA
来源：
ENERGY & ENVIRONMENTAL SCIENCE | 2011年 / 4卷 / 06期
关键词：
2ND VALENCE-BAND; LEAD TELLURIDE; THERMAL CONDUCTIVITY; CHALCOGENIDES; COEFFICIENT; EFFICIENCY; PBSE;
D O I：
10.1039/c0ee00456a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Thermoelectric transport properties of p-type PbTe:Na, with high hole concentrations of approximately 10(20) cm(-3), are reinvestigated from room temperature to 750 K. The greatly enhanced Seebeck coefficient at these doping levels can be understood by the presence of a sharp increase in the density of states around the Fermi level. As a result, the thermoelectric figure of merit, zT, reaches similar to 1.4 at 750 K. The influence of these heavy hole carriers may contribute to a similarly high zT observed in related p-type PbTe-based systems such as Tl-doped PbTe and nanostructured composite materials.
引用
收藏
页码：2085 / 2089
页数：5
相关论文
共 50 条
  • [31] Enhanced thermoelectric performance of PbTe bulk materials with figure of merit zT > 2 by multi-functional alloying
    Fu, Tiezheng
    Yue, Xianqiang
    Wu, Haijun
    Fu, Chenguang
    Zhu, Tiejun
    Liu, Xiaohua
    Hu, Lipeng
    Ying, Pingjun
    He, Jiaqing
    Zhao, Xinbing
    JOURNAL OF MATERIOMICS, 2016, 2 (02) : 141 - 149
  • [32] Resonance states, heavy quasiparticles, and the thermoelectric figure of merit of IV-VI materials
    Prokofieva, L. V.
    Ravich, Yu I.
    Pshenay-Severin, D. A.
    Konstantinov, P. P.
    Shabaldin, A. A.
    SEMICONDUCTORS, 2012, 46 (07) : 866 - 872
  • [33] Reproducible high thermoelectric figure of merit in Ag2Se
    Jakhar, Navita
    Kedia, Dinesh Kumar
    Kumar, Ankit
    Saurabh, Kumar
    Singh, Surjeet
    APPLIED PHYSICS LETTERS, 2023, 122 (16)
  • [34] Graphdiyne: A two-dimensional thermoelectric material with high figure of merit
    Sun, L.
    Jiang, P. H.
    Liu, H. J.
    Fan, D. D.
    Liang, J. H.
    Wei, J.
    Cheng, L.
    Zhang, J.
    Shi, J.
    CARBON, 2015, 90 : 255 - 259
  • [35] Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals
    Zhao, Li-Dong
    Lo, Shih-Han
    Zhang, Yongsheng
    Sun, Hui
    Tan, Gangjian
    Uher, Ctirad
    Wolverton, C.
    Dravid, Vinayak P.
    Kanatzidis, Mercouri G.
    NATURE, 2014, 508 (7496) : 373 - +
  • [36] Spin-dependent thermoelectric figure of merit in a quantum dot
    Yan, Yonghong
    Jiang, Feng
    Zhao, Hui
    PHYSICS LETTERS A, 2016, 380 (1-2) : 277 - 281
  • [37] Ionic Thermoelectric Figure of Merit for Charging of Supercapacitors
    Wang, Hui
    Zhao, Dan
    Khan, Zia Ulla
    Puzinas, Skomantas
    Jonsson, Magnus P.
    Berggren, Magnus
    Crispin, Xavier
    ADVANCED ELECTRONIC MATERIALS, 2017, 3 (04):
  • [38] Effective Power Factor and Thermoelectric Figure of Merit
    Zabrocki, Knud
    Seifert, Wolfgang
    Mueller, Eckhard
    9TH EUROPEAN CONFERENCE ON THERMOELECTRICS (ECT2011), 2012, 1449 : 427 - 430
  • [39] Enhancement of thermoelectric figure of merit in bismuth nanotubes
    Zhou, G.
    Li, L.
    Li, G. H.
    APPLIED PHYSICS LETTERS, 2010, 97 (02)
  • [40] A high thermoelectric figure of merit ZT > 1 in Ba heavily doped BiCuSeO oxyselenides
    Li, Jing
    Sui, Jiehe
    Pei, Yanling
    Barreteau, Celine
    Berardan, David
    Dragoe, Nita
    Cai, Wei
    He, Jiaqing
    Zhao, Li-Dong
    ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (09) : 8543 - 8547
12345