A Review on the Thieno [2,3-c]pyrrole-4,6-dione-based small molecules for Organic Photovoltaic Cells

Solution processed small molecules have drawn attention from the researcher and give competitive alternative to the polymer counterpart due to their advantages such as well define molecular structure and high purity without batch to batch variation. By incorporating D-A concept for structural framework, the photovoltaic performance of the small molecules had a great progress in recent years. The development of thieno[2,3-c]pyrrole-4,6-dione (TPD) as building block for small molecule Donor-Acceptor (D-A) structural framework had many potential advantages. This feature article reviews summarizes the progress of TPD based small molecules in organic photovoltaic cells.