Journal of Inorganic Materials, Volume. 37, Issue 10, 1079(2022)

Effect of Te and In Co-doping on Thermoelectric Properties of Cu2SnSe3 Compounds

PeiAn REN... Cong WANG, Peng ZI, Qirui TAO, Xianli SU* and Xinfeng TANG* |Show fewer author(s)
Author Affiliations
  • State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
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    Figures & Tables(11)
    Powder XRD patterns of Cu2SnSe3-xTex samples after PAS sintering (a) and corresponding enlarge view near 2θ=53° (b)
    Field emission scanning electron microscopies of freshly fractured surfaces of samples Cu2SnSe3 (a) and Cu2SnSe2.9Te0.1 (b)
    Backscattered electron images of the polished surfaces for samples Cu2SnSe2.9Te0.1 (a) and Cu2SnSe2.85Te0.15 (b) with elemental distribution mappings of Cu2SnSe2.9Te0.1(c-f)
    Temperature dependent electrical conductivity (a), Seebeck coefficient (b) and power factor (c) of Cu2SnSe3-xTex samples
    Relationship between carrier concentration and Seebeck coefficient for Cu2SnSe3-xTex and Cu2Sn1-yInySe2.9Te0.1 samples
    Temperature dependent thermal conductivity for Cu2SnSe3-xTex samples
    Temperature dependent ZT for Cu2SnSe3-xTex samples
    Temperature dependent electrical conductivity (a), Seebeck coefficient (b) and power factor (c) for Cu2Sn1-yInySe2.9Te0.1 samples
    Temperature dependent thermal conductivity (a) and ZT (b) for Cu2Sn1-yInySe2.9Te0.1 samples
    • Table 1. Electrical conductivities (σ), Seebeck coefficients (S), carrier concentrations (n) and carrier mobilities (μ) of Cu2SnSe3-xTex samples at room temperature

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      Table 1. Electrical conductivities (σ), Seebeck coefficients (S), carrier concentrations (n) and carrier mobilities (μ) of Cu2SnSe3-xTex samples at room temperature

      Sampleσ/(×104, S·m-1) S/ (μV·K-1) n/(×1017, cm-3) μ/(cm2· V-1·s-1)
      Cu2SnSe30.02472.186.2524.92
      Cu2SnSe2.99Te0.010.08408.0724.3421.04
      Cu2SnSe2.96Te0.040.13294.1253.7715.68
      Cu2SnSe2.93Te0.070.07402.6240.2910.14
      Cu2SnSe2.9Te0.10.11298.2159.6311.67
      Cu2SnSe2.85Te0.150.10356.4921.2727.98
      Cu2SnSe2.8Te0.20.13241.7324.0521.64
    • Table 2. Electrical conductivities (σ), Seebeck coefficients (S), carrier concentrations (n) and carrier mobilities (μ) of Cu2Sn1-yInySe2.9Te0.1 samples at room temperature

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      Table 2. Electrical conductivities (σ), Seebeck coefficients (S), carrier concentrations (n) and carrier mobilities (μ) of Cu2Sn1-yInySe2.9Te0.1 samples at room temperature

      Sampleσ/(×104, S·m-1) S/ (μV·K-1) n/(×1019, cm-3) μ/(cm2·V-1·s-1)
      Cu2SnSe2.9Te0.10.11298.210.5911.68
      Cu2Sn0.995In0.005Se2.9Te0.10.97220.504.3513.95
      Cu2Sn0.99In0.01Se2.9Te0.11.26185.797.1510.99
      Cu2Sn0.985In0.015Se2.9Te0.11.50159.4711.368.25
      Cu2Sn0.98In0.02Se2.9Te0.11.67152.9110.5410.08
      Cu2Sn0.975In0.025Se2.9Te0.12.07130.3920.606.28
      Cu2Sn0.97In0.03Se2.9Te0.12.27120.3520.007.09
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    PeiAn REN, Cong WANG, Peng ZI, Qirui TAO, Xianli SU, Xinfeng TANG. Effect of Te and In Co-doping on Thermoelectric Properties of Cu2SnSe3 Compounds [J]. Journal of Inorganic Materials, 2022, 37(10): 1079

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: Jan. 24, 2022

    Accepted: --

    Published Online: Jan. 12, 2023

    The Author Email: SU Xianli (suxianli@whut.edu.cn), TANG Xinfeng (tangxf@whut.edu.cn)

    DOI:10.15541/jim20220039

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