Table 2.

List of the parameters for the 2D perovskites with the best GH-SPR sensing performances for the four different excitation wavelengths ranging from 488 to 633 nm.

Excitation Wavelength λ (nm)	Type of P	Silver Thickness (nm)	Optimized P Layers (L)	Min R (a.u.)	ΔθSPR (Deg) (Δnbio = 0.12)	ΔLshift (μm) (Δnbio = 1.2 × 10−6)	Sensitivity (μm/RIU)	FWTM (Deg)
488	MAPbI3−xClx	44	1	1.5395 × 10−7	2.7973	19.3817	1.6151 × 107	1.9128
532	MAPbBr3	47	2	1.5852 × 10−7	2.3414	29.2289	2.4357 × 107	1.2922
604	MAPbBr3	53	4	9.4180 × 10−6	1.8205	10.8690	9.0575 × 106	0.4442
604	FAPbI3	45	2	2.1674 × 10−8	1.7484	1.5435 × 103	1.2862 × 109	0.8655
633	FAPbI3	49	1	7.6131 × 10−7	1.3515	30.5218	2.5435 × 107	0.3517