The photovoltaics of organic–inorganic lead halide perovskite materials have shown rapid
improvements in solar cell performance, surpassing the top efficiency of semiconductor …

Organic semiconductors have become essential parts of thin-film electronic devices,
particularly as hole transport layers (HTLs) in perovskite solar cells (PSCs) where they …

The past two years have seen the unprecedentedly rapid emergence of a new class of solar
cell based on mixed organic–inorganic halide perovskites. Although the first efficient solid …

Recently, perovskite solar cells (PSCs) have attracted much attention owing to their high
power conversion efficiency (25.2%) and low fabrication cost. However, the short lifetime …

Perovskite solar cells (PSCs) with efficiencies greater than 20% have been realized only
with expensive organic hole-transporting materials. We demonstrate PSCs that achieve …

Advancing perovskite solar cell technologies toward their theoretical power conversion
efficiency (PCE) requires delicate control over the carrier dynamics throughout the entire …

Lead halide perovskite solar cells have recently attracted tremendous attention because of
their excellent photovoltaic efficiencies. However, the poor stability of both the perovskite …

Single crystals of methylammonium lead trihalide perovskites (MAPbX3; MA= CH3NH3+, X=
Br− or I−) have shown remarkably low trap density and charge transport properties; …

Organometal halide perovskite solar cells have evolved in an exponential manner in the two
key areas of efficiency and stability. The power conversion efficiency (PCE) reached 20.1 …

Perovskite solar cells based on organometal halides represent an emerging photovoltaic
technology. Perovskite solar cells stem from dye-sensitized solar cells. In a liquid-based dye …