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Table 1 Summary of the average reflectance of Si3N4 SWS with various incident angles

From: 3D simulation of morphological effect on reflectance of Si3N4 sub-wavelength structures for silicon solar cells

Average reflectance (%) 15° 30° 45° 60°
Cylinder shape 6.86 6.70 9.95 23.13 52.78
Circular cone shape 4.42 3.64 7.79 26.68 50.98
Square pyramid shape 3.47 3.15 8.88 24.40 51.44