Incorporation of a classical visible non-fullerene acceptor into host binary blend enable ternary high-performance semitransparent polymer solar cells

摘要

Semitransparent photovoltaic devices can open a window for the photovoltaic application, such as buildingintegrated photovoltaics (BIPVs) and portable photovoltaic chargers and so on. We demonstrated a classical visible non-fullerene acceptor IT-M was incorporated into binary blend, and the new ternary blend (PM6:Y6:ITM) film achieved a smooth surface morphology and a balanced charge transport compared to binary blend films. The ternary devices exhibit increased JSC of 26.44 mA cm-2 and PCE of 15.78% while remaining high VOC of 0.87 V. As a result, the ternary blend (PM6:Y6:IT-M) semitransparent devices achieved optimal PCE of 11.67% and AVT of 22.20%.

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