Photovoltaic devices based on metal hybrid perovskite materials have been extensively
explored in recent years for the exceptional power-conversion efficiency and the potential …

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 …

Stability and current–voltage hysteresis stand as major obstacles to the commercialization of
metal halide perovskites. Both phenomena have been associated with ion migration, with …

Metal halide perovskites are the first solution processed semiconductors that can compete in
their functionality with conventional semiconductors, such as silicon. Over the past several …

Ion migration in halide perovskite films leads to device degradation and impedes large scale
commercial applications. We use transient ion-drift measurements to quantify activation …

Efficient mixed metal lead‐tin halide perovskites are essential for the development of all‐
perovskite tandem solar cells, however they are currently limited by significant short‐circuit …

Understanding the kinetic competition between charge extraction and recombination, and
how this is impacted by mobile ions, remains a key challenge in perovskite solar cells …

We propose two approaches to compute the band diagram of highly efficient perovskite
solar cells, both based on the migration of a single-mobile ion (halide vacancies). The first is …

The power conversion efficiency of inorganic–organic hybrid lead halide perovskite solar
cells (PSCs) is approaching that of those made from single crystalline silicon; however, they …

The migration of mobile ions has long been considered a source of performance
degradation in devices based on halide perovskites, but details regarding the mechanisms …