In-Depth Analysis on the Fabry-Perot Effect of Cs₂AgBiBr₆ Double Perovskite-Based Solar Cells via Optical Path Length Modulation

Table 3

Average of the designed architecture with different spiro-OMeTAD layer thicknesses. Units are unified as (V/m)².

Spiro-OMeTAD layer thickness (nm)	Wavelength regime (nm)
	400–500	500–600	600–700	700–800	800–900
110	0.138	0.42	0.805	0.933	0.948
150	0.14	0.43	0.792	0.895	0.883
200	0.144	0.447	0.828	0.903	0.86