In the present paper, we propose a new design of surface plasmon resonance (SPR) sensor having better performance parameters by employing the well-known transfer matrix method. The proposed SPR sensor is comprised of BK-7 prism-ZnO-Ag-BaTiO₃-Transition metal dichalcogenides (TMDCs, mainly WS₂ and MoS₂)/Graphene. A comparison is made among their performance parameters i.e. sensitivity, detection accuracy, quality parameter with other traditional reported SPR sensor. We have also analysed full width at half maxima (FWHM) and electric field intensity enhancement factor (EFIEF) for the proposed SPR sensor. On comparison, it is found that the proposed SPR sensor with monolayer WS₂ configuration has better sensitivity of 180°/RIU as compared to monolayer MoS₂ and graphene which are 174°/RIU and 157°/RIU respectively. However, the proposed SPR sensor with graphene layer shows small FWHM, higher quality parameter and detection accuracy. We have found that maximum sensitivity of 235⁰/RIU corresponds to the two-layer WS₂ configuration. Our proposed SPR sensor shows better performance as compared to the other reported works.

在本文中，我们通过采用众所周知的转移矩阵方法，提出了一种具有更好性能参数的表面等离子体激元共振（SPR）传感器的新设计。拟议中的SPR传感器由BK-7棱镜-ZnO-Ag-BaTiO _3-过渡金属二卤化物（TMDC，主要是WS ₂和MoS ₂）/石墨烯组成。将它们的性能参数（即灵敏度，检测精度，质量参数）与其他传统报道的SPR传感器进行比较。我们还针对拟议的SPR传感器分析了半峰全宽（FWHM）和电场强度增强因子（EFIEF）。相比之下，发现建议的单层WS ₂ SPR传感器与单层MoS ₂和石墨烯分别为174°/ RIU和157°/ RIU相比，该构型具有更好的180°/ RIU灵敏度。然而，所提出的带有石墨烯层的SPR传感器具有较小的FWHM，较高的质量参数和检测精度。我们发现最大灵敏度235 ⁰ / RIU对应于两层WS ₂配置。与其他报告的工作相比，我们提出的SPR传感器显示出更好的性能。