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

Table 2

Average of the designed architecture with different TiO2 layer thicknesses. Units are unified as (V/m)².

TiO2 layer thickness (nm)	Wavelength regime (nm)
	400–500	500–600	600–700	700–800	800–900
40	0.138	0.454	0.884	0.993	1.006
100	0.143	0.472	0.892	0.961	1.048
160	0.14	0.456	0.891	0.985	1.053