Experimental Investigation of the Change in the Efficiency of Hydrogenated Amorphous Silicon Solar Cells with Different Intrinsic Layer Thicknesses

The paper presents the results of experimental studies on changes in the efficiency of p-i-n-structured solar cells based on hydrogenated amorphous silicon (a-Si : H) with different thicknesses of the intrinsic i-region under prolonged illumination. An improvement in the efficiency of solar cells owing to light exposure and the Staebler–Wronski effect were observed. It was established that a-Si : H solar cells have a predetermined structure and parameters that influence the Staebler–Wronski effect, which must be taken into consideration in photocell construction.