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<p>Angular interrogation is used to determine the sensitivity of the conventional surface plasmon resonance sensor. The suggested surface plasmon resonance (SPR) sensor makes use of the Kretschmann configuration, placing the cadmium sulfide sheet between layers of carbon nanotube (CNT) and silver (Ag). Using the transfer matrix method (TMM), an investigation was carried out to enhance the performance parameters of the proposed plasmonic biosensor at a visible wavelength of 633&#xa0;nm. The performance parameters like quality factor, detection accuracy, full width at half maximum, and sensitivity have been evaluated at an RI detection range of 1.33 to 1.36. A maximum sensitivity of 392.35&#xa0;deg/RIU with a quality factor of 94.556 RIU<sup>−1</sup> has been observed.</p>

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Simulation-Based Study of a Novel SPR Sensor Employing Cadmium Sulfide and Carbon Nanotubes

  • 期刊论文

  • 发表日期：

    2025年6月14日

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  • Amrindra Pal,
  • M. Sudhakara Reddy,
  • Aneesh Wunnava,
  • S. K. Sunori,
  • Raj Kumar,
  • Irwanjot Kaur,
  • Munther Kadhim Abosaoda,
  • Sanjeev Kumar Shah,
  • Apurav Gautam,
  • Gufranullah Ansari,
  • Arun Uniyal

摘要

Angular interrogation is used to determine the sensitivity of the conventional surface plasmon resonance sensor. The suggested surface plasmon resonance (SPR) sensor makes use of the Kretschmann configuration, placing the cadmium sulfide sheet between layers of carbon nanotube (CNT) and silver (Ag). Using the transfer matrix method (TMM), an investigation was carried out to enhance the performance parameters of the proposed plasmonic biosensor at a visible wavelength of 633 nm. The performance parameters like quality factor, detection accuracy, full width at half maximum, and sensitivity have been evaluated at an RI detection range of 1.33 to 1.36. A maximum sensitivity of 392.35 deg/RIU with a quality factor of 94.556 RIU−1 has been observed.