Effect of the Thickness on Photoelectric Parameters of a Textured Silicon Solar Cell
Abstract
The efficiency of solar cells strongly depends on their thickness. Therefore, it is important to study the dependence of the photoelectric parameters of solar cells on the thickness. In the work, silicon solar cells with various pyramidal textures are chosen as objects of study, since they are most often used in industry. Silicon solar cells of three types are compared: planar, with pyramidal texture with base angles of 54° and 70.4°. It has been found that the efficiency of a textured silicon solar cell (70.4°) can reach a maximum value of 21% at a thickness of 190 µm. A solar cell (70.4°) with a thickness of 40 µm can reach 19.56% of the efficiency of a textured silicon solar cell (54°) with a thickness of 250 µm. This means that if we form textures with a 70.4° of angle at the base of pyramid on the surface of silicon solar cell, we can reduce its cost by a factor of five.