In this presentation, we report a novel p-extended low bandgap polymer, PITVT, which is composed of isoindigo and thienylvinylene. The polymer exhibits a high power conversion efficiency of 7.09% for polymer solar cells (PSCs). The high performance is achieved by strong intermolecular p-p stacking from coplanarity of thienylvinylene in polmyer backbone, and the deep HOMO energy level of PITVT. This work clearly demonstrates that the incorporation of p-extended thienylvinylene moiety in conjugated polymer backbone improves the performance of PSCs.

Synthesis of p-extended low bandgap polymer based on isoindigo and thienyl-vinylene for high-performance polymer solar cells

246th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.