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<p>Two-dimensional materials offer high surface to volume ratios, high carrier mobility and thickness-dependent physical and chemical properties, and therefore have become a potential candidate to be used as a sensing platform. NO<sub>2</sub> gas is a major pollutant and needs to be monitored. It has been reported that, being a layered material, α-In<sub>2</sub>Se<sub>3</sub> offers excellent electronic, optical, and mechanical properties. Here, α-In<sub>2</sub>Se<sub>3</sub> has been utilized for the detection of NO<sub>2</sub> gas, where a significant sensing response of ~&#xa0;2.3 is observed towards 50&#xa0;ppm of gas at an operating temperature of 60°C. Hence, the present work demonstrates that In<sub>2</sub>Se<sub>3</sub> can be a potential candidate for NO<sub>2</sub> gas-sensing application.</p>

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Fabrication of NO2 Gas Sensor Based on α-In2Se3 Thin Films Grown Using PLD Technique

  • 期刊论文

  • 发表日期：

    2025年2月14日

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  • Chanchal Jeengar,
  • Kajal Jindal,
  • Monika Tomar,
  • Pradip K. Jha

摘要

Two-dimensional materials offer high surface to volume ratios, high carrier mobility and thickness-dependent physical and chemical properties, and therefore have become a potential candidate to be used as a sensing platform. NO2 gas is a major pollutant and needs to be monitored. It has been reported that, being a layered material, α-In2Se3 offers excellent electronic, optical, and mechanical properties. Here, α-In2Se3 has been utilized for the detection of NO2 gas, where a significant sensing response of ~ 2.3 is observed towards 50 ppm of gas at an operating temperature of 60°C. Hence, the present work demonstrates that In2Se3 can be a potential candidate for NO2 gas-sensing application.