Organic solar cells based on small molecule donor and polymer acceptor

Small molecule donor/polymer acceptor (SD/PA)-type organic solar cells (OSCs) have attracted widespread attention in recent years due to the continuing power conversion efficiency (PCE) growth, near 10%, and the excellent thermal stability for the practical applications. However, the development of SD/PA-type OSCs lags far behind that of polymer donor/small molecule acceptor (PD/SA)-type OSCs, which are also based on the combination of small molecule and polymer, with the PCEs exceeding 18%. The reasons accounting for this great gap are well worth exploring. In this review, we have analyzed the key factors affecting the photovoltaic performances of SD/PA-type OSCs, systematically summarized the research progress of SD/PA type OSCs in recent years, and put forward our own views on the future development of SD/PA type OSCs. (C) 2021 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.

Automated summary

Small molecule donor/polymer acceptor (SD/PA)-type organic solar cells (OSCs) have attracted attention for their high efficiency and thermal stability. However, their development lags behind polymer donor/small molecule acceptor (PD/SA)-type OSCs. This review analyzes the key factors affecting the photovoltaic performances of SD/PA-type OSCs and provides insights on their future development.