High-Sensitivity Biosensor-Based Enhanced SPR by ZnO/MoS₂ Nanowires Array Layer with Graphene Oxide Nanosheet

Figure 6

(a) SPR spectrum for different thickness of ZnO layer for d = 10 nm (curves A1), 15 nm (curves A2), and 20 nm (curves A3), as the case of n = 1.36 for sensing medium. (b) Relationship between the change in resonance angle (curves A1), sensitivity (curves A2), and the thickness of TiO₂ layers. The thickness is 15 nm, 46 nm, 1 × 0.65 nm, and 3 × 1.6 nm for TiO₂, Au, MoS₂, and GO layer, respectively.

(a)

(b)