摘要

<正>Solution-processed organic solar cells (OSCs) have attracted considerable attention due to their unique advantages like flexibility, semitransparency, and fabrication of large-area modules via low-cost roll-to-roll processing [1]. The core of an OSC is the bulk-heterojunction photoactive layer, which consists of electron donors and electron acceptors. The leading electron donors are ptype conjugated polymers, and the electron acceptors are typically