A small molecule/fullerene binary acceptor system for high-performance polymer solar cells with enhanced light-harvesting properties and balanced carrier mobility†
Abstract
A small molecule/fullerene binary acceptor system was developed for achieving high performance polymer solar cells. The additional blended small molecule acceptor not only improved the utilization of solar energy, but also achieved balanced carrier mobilities, leading to a significantly enhanced power conversion efficiency (PCE) up to 9.55%.