Delayed Luminescence Spectroscopy of Organic Photovoltaic Binary Blend Films: Probing the Emissive Non-geminate Charge Recombination (original) (raw)

This paper investigates the delayed luminescence (DL) spectroscopy of organic photovoltaic (OPV) binary blend films, focusing on emissive non-geminate charge recombination. It highlights the significance of charge recombination in OPV devices, which can adversely affect photocurrent generation. The study presents spectroscopic results for PDI blended with donor materials F8BT and PIF8BT, showcasing the effectiveness of DL spectroscopy in identifying and analyzing non-geminate recombination processes that contribute to photocurrent losses.