Organic Solar Cells and its Characteristics

Abstract

A review. This paper describes the characteristics of organic solar cell. Several characteristics impact on the conversion efficiency of organic solar cells was discussed. Recently, organic solar cells are attracting a lot of attention due to flexibility, low cost, light weight and large-area applications, and significant improvement in the power conversion efficiency. But the efficiencies of organic solar cells are still lower than crystal silicon solar cells. A circuit model of the solar cell provides a quant. estimate for losses in the solar cell to interpret the characteristics of the solar cell. However, compared with inorganic solar cells, organic solar cells are lack of a three-dimensional crystal lattice, different intramol. and intermol. interactions, local structural disorders, amorphous and crystalline regions, and chem. impurities. Therefore, an appropriate model is represented in the paper.