Detection of Organic Material Using Tungsten Ditelluride Based Surface Plasmon Resonance Sensor

To detect organic materials such as pentane, n-hexane, n-heptane, and n-octane by the proposed sensor. Even with this development, real-time analysis and high performance remain challenges for the sensor. To solve the problems, the current work suggests a numerical investigation for developing a surface plasmon resonance (SPR) sensor. This comprehensive study’s targeted sensitivity was attained by applying tungsten ditelluride (WTe₂) onto a metal layer. Theoretically, organic materials are detected with a high sensitivity of 185.58 deg. RIU⁻¹, 202.42 deg. RIU⁻¹, 208 deg. RIU⁻¹, and 213.75 deg. RIU⁻¹. The Ag metal layer is the most suitable for the Kretschmann configuration based on the achieved sensitivity. Due to its potential for physical realization, the Kretschmann configuration is employed in this study. The MATLAB simulations were used to optimize the layers’ thicknesses to achieve high sensitivity. The proposed sensor is found to be most suitable for the stated application after its performance is also evaluated against that of previous research.