A Thieno[3,4-c]pyrrole-4,6-dione-Based Copolymer for Efficient Solar Cells.

The article discusses the polymer bulk heterojunction (BHJ) solar cells that provide renewable energy sources due to their unique features. The use of the donor-acceptor structures has become an effective strategy for getting low-band-gap polymers and regulating their electronic properties. The thieno[3,4-c]pyrrole-4,6-dione (TPD) unit and related derivatives can be effectively applied to adjust the optical and electronic properties of conjugated polymers.