Combining perovskites and quantum dots: application in solar cells

Perovskite solar cells (PSC) have experience remarkable progress over the last years and exhibit the steepest growth in power conversion efficiency (PCE) among photovoltaic (PV) technologies. Despite reaching competitive efficiencies, with potential for higher performance, durability is currently the largest technological risk for perovskite PV commercialization. Perovskites are inherently vulnerable to moisture, high temperature and UV light, thus improving their stability is one of the main unsolved issues on the field. On the other hand, quantum dots (QDs) are highly attractive materials for a variety of applications. Their tunable optoelectronic properties, easy maneuverability and high functionality offers several advantages as light harvesters that can be complementary to other technologies when employed in hybrid architectures. This work explores the combination of perovskites and luminescent down-shifting quantum dots as a strategy to simultaneously increase the UV response of PSC while improving their stability by suppressing UV-light-induced degradation.