Metal-oxide-based charge-transport layers have played a pivotal role in the progress of
perovskite solar cells. Yet metal-oxide/perovskite interfaces are often highly defective, owing …

The A cation in ABX3 organic-inorganic lead halide perovskites (OLHPs) was conventionally
believed to hardly affect their optoelectronic properties. However, more recent developments …

Modifying the exposed upper surface of perovskite solar cells (PSCs) has greatly contributed
to improving their photovoltaic performance. The equally important buried interface (that is …

In halide perovskite solar cells the formation of secondary-phase excess lead iodide (PbI2)
has some positive effects on power conversion efficiency (PCE) but can be detrimental to …

Daily temperature variations induce phase transitions and lattice strains in halide
perovskites, challenging their stability in solar cells. We stabilized the perovskite black …

Discovery of earth-abundant electrocatalysts to replace iridium for the oxygen evolution
reaction (OER) in a proton exchange membrane water electrolyzer (PEMWE) represents a …

Power conversion efficiencies of inverted perovskite solar cells (PSCs) based on
methylammonium-and bromide-free formamidinium lead triiodide (FAPbI3) perovskites still …

Optoelectronic devices consist of heterointerfaces formed between dissimilar
semiconducting materials. The relative energy-level alignment between contacting …

To understand degradation routes and improve the stability of perovskite solar cells (PSCs),
accelerated aging tests are needed. Here, we use elevated temperatures (up to 110° C) to …

Cations with suitable sizes to occupy an interstitial site of perovskite crystals have been
widely used to inhibit ion migration and promote the performance and stability of perovskite …