All-perovskite tandem solar cells are attracting considerable interest in photovoltaics
research, owing to their potential to surpass the theoretical efficiency limit of single-junction …

Photoelectrochemical cells (PEC) use solar energy to generate green hydrogen by water
splitting and have an integrated device structure. Achieving high solar‐to‐hydrogen …

Abstract Narrow‐bandgap (NBG) Pb–Sn perovskites are ideal candidates as rear subcell in
all‐perovskite tandem solar cells. Because Pb–Sn perovskites contain multiple components …

Interfacial defects between perovskite and adjacent charge transport layers present a
significant obstacle, hindering the enhancement of power conversion efficiency (PCE) and …

Ion migration is a broad term used to account for the degradation of halide perovskite
materials and devices. However, ion mobility is only one piece of the full picture─ mobile …

Sn-based perovskites are ideal eco-friendly candidates as an alternative to Pb-based ones
in next-generation optoelectronics. However, a polycrystalline Sn-based perovskite thin film …

Metal-halide perovskites, exhibiting exceptional optoelectronic properties, have emerged as
a highly promising class of semiconductors for diverse applications. However, the inherent …

This work explores electrochemical impedance spectroscopy to study recombination and
ionic processes in all-perovskite tandem solar cells. We exploit selective excitation of each …

Mixed cation mixed halide perovskites (MHPs) are promising candidate materials for next-
generation photovoltaic devices due to their remarkable optoelectronic properties and …

Metal halide perovskites have emerged as an exciting class of materials for applications in
solar energy harvesting, optical devices, catalysis, and other photophysical applications …