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<p>In this paper, we describe a new biosensor that uses silver (Ag), titanium dioxide (TiO<sub>2</sub>), and 2D materials to produce a refractive index–based surface plasmon resonance (SPR) device for alcohol detection. In this novel design, silver acts as the metallic layer within the Kretschmann arrangement, promoting the creation of surface plasmons. Titanium dioxide is utilized as a dielectric material to prevent oxidation of the silver layer and improve the sensing performance of the sensor. Additionally, the utilization of the 2D materials enhances the detection of the sensor. In the present paper, it reports ethanol (ethyl alcohol) and propanol alcohol. By transfer matrix approach, their sensor performance is evaluated along with an angular interrogation technique. The novel sensor design possesses remarkable performance parameters, such as a maximum sensitivity of 313.72°/RIU, a detection accuracy of 0.54, and a quality factor of 93.98 RIU. These results show that the sensor has a great potential for use in biological monitoring and alcohol detection.</p>

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Performance Analysis of a Novel Surface Plasmon Resonance Sensor for Alcohol Detection Employing Silver, Titanium Dioxide, and BlueP/TDMC Heterostructure

  • 期刊论文

  • 发表日期：

    2025年8月7日

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  • Challa Nithin,
  • Sarpuru Bhanu Prakash,
  • Vasimalla Yesudasu,
  • Chella Santhosh,
  • Suman Maloji,
  • Santosh Kumar

摘要

In this paper, we describe a new biosensor that uses silver (Ag), titanium dioxide (TiO2), and 2D materials to produce a refractive index–based surface plasmon resonance (SPR) device for alcohol detection. In this novel design, silver acts as the metallic layer within the Kretschmann arrangement, promoting the creation of surface plasmons. Titanium dioxide is utilized as a dielectric material to prevent oxidation of the silver layer and improve the sensing performance of the sensor. Additionally, the utilization of the 2D materials enhances the detection of the sensor. In the present paper, it reports ethanol (ethyl alcohol) and propanol alcohol. By transfer matrix approach, their sensor performance is evaluated along with an angular interrogation technique. The novel sensor design possesses remarkable performance parameters, such as a maximum sensitivity of 313.72°/RIU, a detection accuracy of 0.54, and a quality factor of 93.98 RIU. These results show that the sensor has a great potential for use in biological monitoring and alcohol detection.