Application of block copolymers in organic solar cells

Abstract

After many years of development, block copolymers became one of the most important materials for organic solar cells. They were used in photovoltaic cells because of their self-assembly properties and controlled ordered nanoscale, which is ideal for electron-hole pair separation. However, block copolymers still faced several major challenges as organic solar materials, and this paper focused on their limitations and corresponding solutions in terms of material design, morphology control, and interface modification, as well as on the fundamental molecular engineering principles involved. In the paper’s conclusion, an perspective on the use of modern, advanced block copolymers in organic solar cells was provided.