In this paper, the effect of different structures and flakes of phosphorene (Ph), germanene (Ge), and borophene (B) sandwiched between MoS₂ layers on the surface plasmon resonance (SPR) biosensor structure is simulated and investigated in the Lumerical software environment. The main structure is based on the Kretschmann structure, utilizing the BK₇ prism, a 30 nm gold (Au) layer, and an MoS₂ and (Ph, Ge, B) hybrid structure as the top layer. The reflectance curves of the proposed SPR biosensors were obtained, analyzed, and compared for different refractive index modes, specifically n = 1.33 for a neutral aqueous medium and n = 1.339 for a bacterial medium. The results demonstrate that the minimum reflectance occurs for a 30 nm Au layer at an SPR resonance angle of θ = 71.95°. However, when different configurations of (Ph, Ge, B) with varying thicknesses are sandwiched between MoS₂ layers on the Au layer, the resonance angle increases. The minimum reflectance values for a monolayer of phosphorene, a triple layer of germanene, and a triple layer of borophene sandwiched between MoS₂ double layers on the Au layer are 0.027, 0.002, and 0.004, respectively. The triple layer of germanene exhibits the highest sensitivity of 152°/RIU for Δn = 0.009 with a detection accuracy of 0.090. The simulation results of the proposed structures present new opportunities for enhancing the sensitivity and performance of SPR biosensors.

_{本文在Lumerical软件中模拟并研究了夹在MoS 2}层之间的磷烯(Ph)、锗烯(Ge)和硼烯(B)的不同结构和薄片对表面等离子体共振(SPR)生物传感器结构的影响。环境。主要结构基于Kretschmann结构，利用BK ₇棱镜、30 nm金(Au)层以及MoS ₂和(Ph,Ge,B)混合结构作为顶层。获得、分析和比较了所提出的 SPR 生物传感器的反射率曲线，并针对不同的折射率模式进行了比较，特别是 中性水介质的n = 1.33 和 细菌介质的n = 1.339。结果表明，30 nm Au 层在 SPR 共振角 θ = 71.95° 时出现最小反射率。然而，当具有不同厚度的不同构型的(Ph，Ge，B)夹在Au层上的MoS ₂层之间时，谐振角增大。夹在Au层上的MoS ₂双层之间的单层磷烯、三层锗烯和三层硼烯的最小反射率值分别为0.027、0.002和0.004。三层锗烯在 Δn = 0.009 时表现出最高的灵敏度 152°/RIU，检测精度为 0.090。所提出的结构的模拟结果为提高SPR生物传感器的灵敏度和性能提供了新的机会。