The study of degradation of organic solar cells

Abstract

In this work, samples of organic solar cells based on P3HT: PCBM were obtained with efficiency of about 2 %. The influence of ultraviolet radiation on the structure of the photoactive layer of P3HT: PCBM was investigated by various methods of atomic force microscopy. Significant changes in the structure of the photoactive layer and the complete degradation were detected only after exposure to air using a powerful UV emission. The degradation of solar cells in the air was also studied. It has been established that efficiency the cells is reduced by 12 percent after three hours of irradiation on air.