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<p>Copper sulfide (Cu<sub>2</sub>S) has been investigated as a potential thermoelectric material due to its high Seebeck coefficient, low cost, abundant supply on earth, and non-toxicity. Here, we report a series of pure Cu<sub>2</sub>S, Cu<sub>2</sub>S, and poly (3, 4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)-based composite thin films as potential thermoelectric materials. This study focuses on examining the impact of PEDOT:PSS and Dimethyl Sulfoxide (DMSO)-treated&#xa0;PEDOT:PSS on Cu<sub>2</sub>S thin films. The study reveals that the incorporation of the organic compound PEDOT:PSS and PEDOT:PSS treated with DMSO results in significantly enhanced electrical conductivity of Cu<sub>2</sub>S thin films. It is also observed that the addition of PEDOT:PSS results in an increase in the Seebeck coefficient of the composite thin film. The highest power factor (PF) value of 257.20 Wm<sup>−1</sup>.K<sup>−2</sup> at 475&#xa0;K has been achieved for the DMSO-treated Cu<sub>2</sub>S/PEDOT:PSS sample. The highest <i>ZT</i> value of 0.33 has been achieved for the hybrid sample containing Cu<sub>2</sub>S along with DMSO-treated PEDOT:PSS.</p>

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Improved thermoelectric properties of Cu2S and PEDOT:PSS-based hybrid thin films

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • Muhammad Saadullah,
  • Sajid Butt,
  • Muhammad Irfan,
  • Sumayya,
  • Muhammad Waseem Akram,
  • Muhammad Abdul Basit,
  • Saqib Ali,
  • Waqar Mahmood,
  • Sofia Javed,
  • Zaka Ansar

摘要

Copper sulfide (Cu2S) has been investigated as a potential thermoelectric material due to its high Seebeck coefficient, low cost, abundant supply on earth, and non-toxicity. Here, we report a series of pure Cu2S, Cu2S, and poly (3, 4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)-based composite thin films as potential thermoelectric materials. This study focuses on examining the impact of PEDOT:PSS and Dimethyl Sulfoxide (DMSO)-treated PEDOT:PSS on Cu2S thin films. The study reveals that the incorporation of the organic compound PEDOT:PSS and PEDOT:PSS treated with DMSO results in significantly enhanced electrical conductivity of Cu2S thin films. It is also observed that the addition of PEDOT:PSS results in an increase in the Seebeck coefficient of the composite thin film. The highest power factor (PF) value of 257.20 Wm−1.K−2 at 475 K has been achieved for the DMSO-treated Cu2S/PEDOT:PSS sample. The highest ZT value of 0.33 has been achieved for the hybrid sample containing Cu2S along with DMSO-treated PEDOT:PSS.