China-based display maker China Star (CSoT, a subsidiary of TCL) demonstrated a 6.6-inch 384x300 OLED display that uses perovskite quantum dots as a color conversion film.

CSoT is using blue OLED emitter materials, and a perovskite layer to up-convert the color to green (this is a monochrome prototype - evidently a very early prototype). CSoT brands its perovskite-OLEDs as PE-OLED and we believe this is the first time a perovskite-enhanced display has been publicly demonstrated.

KAUST researchers have developed a synthetic approach that generates homogeneous and defect-free crystals that have the potential to fast-track the commercialization of perovskite solar cells.

The performance and stability of solar cells depend on the morphology of the perovskite thin films, which act as light-harvesting layers in the devices. A major problem arises from the fact that existing perovskite solar cells usually consist of polycrystalline thin films that are highly disordered and defective, which prevents devices from achieving optimal performance.

Researchers at the Institute of Materials Science in Barcelona (ICMAB-CSIC) and the Helmholtz-Zentrum Berlin für Materialien und Energie (Germany) have used a unique microscopy technique to demonstrate that perovskites are not ferroelectric, as was thought.

The new technique, patented by CSIC in 2017, is the direct piezoelectric force microscopy (DPFM) which, for the first time, is used in lead halide perovskite solar cells.