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<p>Low-cost thermoelectric (TE) ink-painting technology for power generation devices represents a promising avenue for energy harvesting and sustainable technology applications. This study explores a novel approach using TE devices for waste heat recovery, focusing on painting TE ink for low-cost power generation devices. We utilized <i>p</i>-type Bi<sub>0.4</sub>Sb<sub>1.6</sub>Te<sub>3</sub> (<i>p</i>-BST) and <i>n</i>-type Bi<sub>2</sub>Se<sub>3</sub> (<i>n</i>-BS) ink to fabricate films on glass substrates. The film thickness was controlled at 100&#xa0;µm and was annealed for 30&#xa0;min in air at 300–400°C. Energy dispersive x-ray spectroscopy (EDS), scanning electron microscopy (SEM), x-ray diffraction (XRD), ZEM-3, and laser flash analysis (LFA) techniques were used to determine the chemical content, morphology, crystal structure, and TE properties of both materials. The low-cost TE ink-painting module with five pairs of <i>p</i>- and <i>n</i>-type layers in parallel could generate power within an output power range of 2.59&#xa0;W at a temperature differential of 50°C.</p>

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Low-Cost Thermoelectric Ink Painting of p-BST and n-BS for Power Generation Applications

  • 期刊论文

  • 发表日期：

    2025年6月19日

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  • Surasak Ruamruk,
  • Bralee Chayasombat,
  • Athorn Vora-ud,
  • Wanatchaporn Namhongsa,
  • Somporn Thaowankaew,
  • Anek Charoenphakdee,
  • Tosawat Seetawan

摘要

Low-cost thermoelectric (TE) ink-painting technology for power generation devices represents a promising avenue for energy harvesting and sustainable technology applications. This study explores a novel approach using TE devices for waste heat recovery, focusing on painting TE ink for low-cost power generation devices. We utilized p-type Bi0.4Sb1.6Te3 (p-BST) and n-type Bi2Se3 (n-BS) ink to fabricate films on glass substrates. The film thickness was controlled at 100 µm and was annealed for 30 min in air at 300–400°C. Energy dispersive x-ray spectroscopy (EDS), scanning electron microscopy (SEM), x-ray diffraction (XRD), ZEM-3, and laser flash analysis (LFA) techniques were used to determine the chemical content, morphology, crystal structure, and TE properties of both materials. The low-cost TE ink-painting module with five pairs of p- and n-type layers in parallel could generate power within an output power range of 2.59 W at a temperature differential of 50°C.