Indium substitution effect on thermoelectric and optical properties of Sn1-xInxSe compounds

被引:35
作者
Kim, Jin Hee [1 ,2 ]
Oh, Suekyung [1 ,2 ]
Kim, Yun Min [1 ,2 ]
So, Hyeon Seob [1 ,2 ]
Lee, Hosun [1 ,2 ]
Rhyee, Jong-Soo [1 ,2 ]
Park, Su-Dong [3 ]
Kim, Sung-Jin [4 ]
机构
[1] Kyung Hee Univ, Dept Appl Phys, Yongin 17104, South Korea
[2] Kyung Hee Univ, Inst Nat Sci, Yongin 17104, South Korea
[3] Korea Electrotechnol Res Inst, Adv Elect Mat Grp, Chang Won 51543, South Korea
[4] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 03760, South Korea
基金
新加坡国家研究基金会;
关键词
Thermoelectric; SnSe; Hybridization; Band renormalization; PERFORMANCE BULK THERMOELECTRICS; POLYCRYSTALLINE SNSE; CRYSTALS; CONVERGENCE; ENHANCEMENT; SNTE;
D O I
10.1016/j.jallcom.2016.04.308
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Recent investigations of the high thermoelectric figure-of-merit ZT of 2.6 for SnSe crystalline compound demonstrated the state-of-the-art highest thermoelectric performance in spite of the high ZT value in a narrow temperature range and along a specified crystallographic direction. We investigated the thermoelectric properties of polycrystalline Sn1-xInxSe (x = 0.0, 0.01, 0.05, and 0.1) compounds and the optical properties of single crystalline compounds. Sn1-xInxSe exhibits increased electrical resistivity, an increase in the Seebeck coefficient and band gap energies, and a significant decrease in the Hall mobility with an increase in the In-doping concentration, whereas the Hall carrier density does not changed significantly. These abnormal results and the decrease in the lattice volume with an increase in the Indoping concentration strongly imply the existence of band renormalization by In 4d- and Se 4p-orbital hybridization. We argue that the significant flat bands by band renormalization induce significantly decreased Hall mobility and increases in the electrical resistivity and Seebeck coefficient, resulting in the deterioration of the thermoelectric properties. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:785 / 790
页数:6
相关论文
共 21 条
  • [1] Electrical resistivity anisotropy in layered p-SnSe single crystals
    Agarwal, A
    Vashi, MN
    Lakshminarayana, D
    Batra, NM
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2000, 11 (01) : 67 - 71
  • [2] Synthesis of laminar SnSe crystals by a chemical vapour transport technique
    Agarwal, A
    [J]. JOURNAL OF CRYSTAL GROWTH, 1998, 183 (03) : 347 - 351
  • [3] High-performance bulk thermoelectrics with all-scale hierarchical architectures
    Biswas, Kanishka
    He, Jiaqing
    Blum, Ivan D.
    Wu, Chun-I
    Hogan, Timothy P.
    Seidman, David N.
    Dravid, Vinayak P.
    Kanatzidis, Mercouri G.
    [J]. NATURE, 2012, 489 (7416) : 414 - 418
  • [4] Thermoelectric properties of p-type polycrystalline SnSe doped with Ag
    Chen, Cheng-Lung
    Wang, Heng
    Chen, Yang-Yuan
    Day, Tristan
    Snyder, G. Jeffrey
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (29) : 11171 - 11176
  • [5] The effect of Te doping on the electronic structure and thermoelectric properties of SnSe
    Chen, Song
    Cai, Kefeng
    Zhao, Wenyu
    [J]. PHYSICA B-CONDENSED MATTER, 2012, 407 (21) : 4154 - 4159
  • [6] Enhancement of thermoelectric efficiency in PbTe by distortion of the electronic density of states
    Heremans, Joseph P.
    Jovovic, Vladimir
    Toberer, Eric S.
    Saramat, Ali
    Kurosaki, Ken
    Charoenphakdee, Anek
    Yamanaka, Shinsuke
    Snyder, G. Jeffrey
    [J]. SCIENCE, 2008, 321 (5888) : 554 - 557
  • [7] Ioffe A.F., 1957, Semiconductor Thermoelements and Thermoelectric Cooling
  • [8] Dense dislocation arrays embedded in grain boundaries for high-performance bulk thermoelectrics
    Kim, Sang Il
    Lee, Kyu Hyoung
    Mun, Hyeon A.
    Kim, Hyun Sik
    Hwang, Sung Woo
    Roh, Jong Wook
    Yang, Dae Jin
    Shin, Weon Ho
    Li, Xiang Shu
    Lee, Young Hee
    Snyder, G. Jeffrey
    Kim, Sung Wng
    [J]. SCIENCE, 2015, 348 (6230) : 109 - 114
  • [9] Investigation of the Anisotropic Thermoelectric Properties of Oriented Polycrystalline SnSe
    Li, Yulong
    Shi, Xun
    Ren, Dudi
    Chen, Jikun
    Chen, Lidong
    [J]. ENERGIES, 2015, 8 (07): : 6275 - 6285
  • [10] Optical properties of large-area ultrathin MoS2 films: Evolution from a single layer to multilayers
    Park, Jun Woo
    So, Hyeon Seob
    Kim, Sung
    Choi, Suk-Ho
    Lee, Hosun
    Lee, Jinhwan
    Lee, Changgu
    Kim, Youngchan
    [J]. JOURNAL OF APPLIED PHYSICS, 2014, 116 (18)