Organic solar cells (OSCs) potentially can offer low cost, large area, flexible, light-weight, clean, and quiet alternative energy sources for indoor and outdoor applications. OSCs using non-fullerene acceptors (NFAs) have garnered a lot of attention during the past few years and shown dramatic increases in the power conversion efficiency (PCE) exceeding 19% for single-junction devices. In this talk, I will discuss the current progress and remaining challenges of solution-processed OSCs.
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