Downconversion Materials for Perovskite Solar Cells

Perovskite solar cells (PSCs) have made game-changing progress in the last decade and reached a power conversion efficiency (PCE) of up to 25%. Furthermore, development material chemistry, structure design, active layer composition, process engineering, etc. has contributed improving PSCs’ stability. The significant PCE losses experienced by PSCs are related spectral mismatch between incident spectra absorption range layer, which thereby limits PCE. Besides performance, photoinduced degradation is also major concern. Recently, lanthanide (rare-earth) nonlanthanide-based downconversion (DC) materials been introduced resolve these as well reduce degradation. DC improve photovoltaic performance converting ultraviolet (UV) light visible, providing UV shielding, thus contribute increasing stability PSCs. Moreover, Shockley–Queisser limit cell can be crossed with help materials. In this review, importance, processing, reported for thoroughly discussed. their impact on stability, along future perspectives, focused.