Schematic of the stacked structure for the determination of optical constants.
Top views of samples CGSe and CISe both before and after smoothening.
Total ( ) and diffuse ( ) reflectance of samples (a) CGSe and (b) CISe, multiple solutions ( ) of refractive index of (c) CGSe and (d) CISe both before and after smoothening. Superscripts “Rou” and “Smo” correspond to that the measurement ( ) or the calculation ( ) is done for the samples before smoothening and after smoothening, respectively. indicates that the multiple solutions are calculated by the TM method without considering surface roughness and that the MTM method considering surface roughness was applied. The green cross-dotted lines in Figs. 3(c) and 3(d) mark the physically meaningful values selected out of the multiple solution curves from CGSe and CISe, respectively.
Physically meaningful data of CGSe (a) and CISe (b) extracted from corresponding curves in Figs. 3(c) and 3(d) , respectively ( originates from and likewise for the rest). The dotted line corresponds that the values are from Orgassa in Ref. 3 . P denotes . P, less than 1%, is regarded as the experimental error.
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