Figure 4: Optical characterizations of planar and pyramidal Si with and without graphene. | Scientific Reports

Figure 4: Optical characterizations of planar and pyramidal Si with and without graphene.

From: Fabrication and Analysis of Chemically-Derived Graphene/Pyramidal Si Heterojunction Solar Cells

Figure 4

(A) Reflectance and (B) absorbance spectra of graphene/planar Si, planar Si, graphene/pyramidal Si and pyramidal Si. Compared with graphene/planar Si, graphene on pyramidal Si displays the reduced reflectance and higher absorbance in the entire wavelength range owing to the effective antireflection.

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