Three-dimensional (3D) organic–inorganic lead halide perovskites have emerged in the
past few years as a promising material for low-cost, high-efficiency optoelectronic devices …

Electrical do** (that is, intentional engineering of carrier density) underlies most energy-
related and optoelectronic semiconductor technologies. However, for the intensely studied …

CsSnI3 is considered to be a viable alternative to lead (Pb)-based perovskite solar cells
(PSCs) due to its suitable optoelectronic properties. The photovoltaic (PV) potential of …

The electron-transport layer (ETL) between the active perovskite material and the cathode
plays a critical role in planar perovskite solar cells. Herein, we report a drastically improved …

Organic–inorganic hybrid perovskite materials are receiving increasing attention and
becoming star materials on account of their unique and intriguing optical and electrical …

There has been an urgent need to eliminate toxic lead from the prevailing halide perovskite
solar cells (PSCs), but the current lead-free PSCs are still plagued with the critical issues of …

Lead‐based halide perovskites have received great attention in light‐emitting applications
due to their excellent properties, including high photoluminescence quantum yield (PLQY) …

Efficient lead (Pb)-free inverted planar formamidinium tin triiodide (FASnI3) perovskite solar
cells (PVSCs) are demonstrated. Our FASnI3 PVSCs achieved average power conversion …

The stability of a tin‐based perovskite solar cell is a major challenge. Here, hybrid tin‐based
perovskite solar cells in a new series that incorporate a nonpolar organic cation …

The efficiency of perovskite solar cells has surged in the past few years, while the bandgaps
of current perovskite materials for record efficiencies are much larger than the optimal value …