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<p>This study proposes a high-performance gas sensor utilizing a multi-layered structure of copper (Cu), hexagonal boron nitride (h-BN), and few-layer black phosphorus (BP). The sensor’s performance is evaluated using angular and wavelength interrogation techniques, measuring key parameters such as sensitivity, full width at half maximum (FWHM), detection accuracy (DA), and figure of merit (FoM). With an optimized Cu thickness and 34*BP layers, the sensor achieves a maximum sensitivity of 285.54°/RIU at a wavelength of 633&#xa0;nm. Numerical analysis reveals that incorporating BP enhances sensor performance compared to conventional gas sensors. Additionally, the sensor, integrated with a SiO<sub>2</sub> prism, demonstrates improved gas detection capabilities for analytes with refractive index (RI) ranging from 1 to 1.03. These findings suggest that the proposed sensor is a promising candidate for advanced gas detection applications.</p>

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Sensitivity Enhancement of Surface Plasmon Resonance Sensor for NO2 and CO2 Gas Detection

  • 期刊论文

  • 发表日期：

    2025年2月7日

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  • Rampriya B.,
  • Hashim Elshafie,
  • Azath Mubarakali,
  • Arun Kumar U.

摘要

This study proposes a high-performance gas sensor utilizing a multi-layered structure of copper (Cu), hexagonal boron nitride (h-BN), and few-layer black phosphorus (BP). The sensor’s performance is evaluated using angular and wavelength interrogation techniques, measuring key parameters such as sensitivity, full width at half maximum (FWHM), detection accuracy (DA), and figure of merit (FoM). With an optimized Cu thickness and 34*BP layers, the sensor achieves a maximum sensitivity of 285.54°/RIU at a wavelength of 633 nm. Numerical analysis reveals that incorporating BP enhances sensor performance compared to conventional gas sensors. Additionally, the sensor, integrated with a SiO2 prism, demonstrates improved gas detection capabilities for analytes with refractive index (RI) ranging from 1 to 1.03. These findings suggest that the proposed sensor is a promising candidate for advanced gas detection applications.