Impedance spectroscopy (IS) provides a detailed understanding of the dynamic phenomena
underlying the operation of photovoltaic and optoelectronic devices. Here we provide a …

Despite the rapid progress in the power conversion efficiency (PCE) from 3.8% to 25.5%
with ten years of effort, the real outdoor applications of perovskite solar cells (PSCs) are still …

Inserting an ultrathin low-conductivity interlayer between the absorber and transport layer
has emerged as an important strategy for reducing surface recombination in the best …

Operating stability has become a priority issue for all-perovskite tandem solar cells.
Inorganic CsPbI3− x Br x perovskites, which have good photostability against halide …

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 …

Perovskite solar cells are remarkably efficient; however, they are prone to degradation in
water, oxygen and ultraviolet light. Cation engineering in 3D perovskite absorbers has led to …

Hybrid organic-inorganic perovskites are promising materials for the application in solar
cells and light-emitting diodes. However, the basic current-voltage behavior for electrons …

The charge carrier dynamics in organic solar cells and organic–inorganic hybrid metal
halide perovskite solar cells, two leading technologies in thin‐film photovoltaics, are …

In this study, we discuss the underlying mechanism of the current–voltage hysteresis in a
hybrid lead-halide perovskite solar cell. We have developed a method based on Kelvin …

Perovskite solar cells (PSCs) have shown great progress over the past decade, with
efficiencies of single-junction devices approaching those of silicon photovoltaics. However …