In this paper, design and modeling of a surface plasmon resonance (SPR) sensors using transition metal dichalcogenide (TMDC) 2D nanomaterials such as tungsten sulfide (WS₂) and graphene with the improvements of the sensitivity and the figure of merit (FoM) are demonstrated. The proposed sensors are based on Kretschmann configuration for the obtaining of the reflectivity using the transfer matrix method (TMM) and Fresnel equations. A monolayer of nickel (Ni) was added between WS₂ layers and graphene layers to enhance the sensitivity (S) and FoM of our proposed sensor. The reported sensor exhibits a good angular sensitivity which is improved to the maximum value of 243.31°/RIU. It is noted the SPR sensor sensitivity changes with the variation of the WS₂ and graphene layer numbers. Full width half maximum (FWHM) values are minimized to be 7.15°; then, the FoM is reached to be 34.03 RIU⁻¹ which gives better sensing properties in comparison with other published articles.

在本文中，使用诸如硫化钨（WS ₂）和石墨烯之类的过渡金属二卤化碳（TMDC）二维纳米材料设计并建模了表面等离子体激元共振（SPR）传感器，并提高了灵敏度和品质因数（FoM）。演示。所提出的传感器基于Kretschmann配置，用于使用传递矩阵法（TMM）和菲涅尔方程获得反射率。在WS ₂层和石墨烯层之间添加了一层镍（Ni），以增强我们提出的传感器的灵敏度（S）和FoM。报告的传感器具有良好的角度灵敏度，该灵敏度提高到最大值243.31°/ RIU。请注意，SPR传感器的灵敏度随WS ₂的变化而变化和石墨烯层号。全宽半高（FWHM）值最小化为7.15°；然后，FoM达到34.03 RIU ^-1，与其他已发表的文章相比，它提供了更好的感测特性。