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Influence of the Angle of Incident Light on the Performance of Textured Silicon Solar Cells

It is important to study environmental effects on the properties of solar cells because solar cells are usually used in open environments. If the surface morphology of a solar cell changes, the angle of incident light will change depending on its photoelectric properties. So, in this paper, the photoelectric properties of silicon solar cells covered with upright pyramids with different base angles were investigated depending on the angle of incident light. From the obtained results, it was found that when the angle of incident light is varied from 0 to 80, the short circuit current densities of planar and pyramidal textured silicon solar cells with base angles of pyramids of 50.4 and 70.4 decrease to 82.6, 88.8, 89.8 %, the open circuit voltages decrease to 10.5, 12.8, 14.1 % and the fill factors decrease to 1.9, 2.2 and 3.2 %. The efficiency of a silicon solar cell covered with pyramids with a base angle of 70.40 is better than those of planar and other textured silicon solar cells in the range of incident light angles from 0 to 80, although the dependence of its photoelectric parameters on the angle of incident light increases.