Organic (opto) electronic materials have received considerable attention due to their
applications in thin-film-transistors, light-emitting diodes, solar cells, sensors, photorefractive …

In several photovoltaic (PV) technologies, the presence of electronic defects within the
semiconductor band gap limit the efficiency, reproducibility, as well as lifetime. Metal halide …

High-purity precursor materials are vital for high-efficiency perovskite solar cells (PSCs) to
reduce defect density caused by impurities in perovskite. In this study, we present aqueous …

The large photocurrent hysteresis observed in many organometal trihalide perovskite solar
cells has become a major hindrance impairing the ultimate performance and stability of …

The high trap density (generally 1016 to 1018 cm− 3) in thin films of organic semiconductors
is the primary reason for the inferior charge‐carrier mobility and large nonradiative …

Efficient quasi-2D-structure perovskite light-emitting diodes (4.90 cd A (-1)) are
demonstrated by mixing a 3D-structured perovskite material (methyl ammonium lead …

Here, a π-conjugated Lewis base is introduced into perovskite solar cells, namely,
indacenodithiophene end-capped with 1.1-dicyanomethylene-3-indanone (IDIC), as a …

Impedance spectroscopy has been widely applied over the last decades to study
electrochemical systems and solid-state devices. However, performing impedance …

A low defect density in metal halide perovskite single crystals is critical to achieve high
performance optoelectronic devices. Here we show the reduction of defect density in …

High‐performance IR organic photodetectors (OPDs) are of great significance for wireless
optical communication, light detection and ranging (LiDAR) technology, and wearable …