The excited‐state tuning of luminescent metal–organic compounds has made great
progress in the fields of optical imaging, photocatalysis, photodynamic therapy, light …

Abstract Information security protection has a tremendous impact on human life, social
stability and national security, leading to the rapid development of anti‐counterfeiting …

Material composition engineering and device fabrication of perovskite nanocrystals (PNCs)
in solution can introduce organic contamination and entail several synthetic, processing …

Metal-halide perovskites have rapidly emerged as one of the most promising materials of the
21st century, with many exciting properties and great potential for a broad range of …

Colloidal self-assembly refers to a solution-processed assembly of nanometer-/micrometer-
sized, well-dispersed particles into secondary structures, whose collective properties are …

Optically variable devices (OVDs) are in tremendous demand as optical indicators against
the increasing threat of counterfeiting. Conventional OVDs are exposed to the danger of …

Perovskite nanocrystals are exceptional candidates for light-emitting diodes (LEDs).
However, they are unstable in the solid film and tend to degrade back to the bulk phase …

Metal halide perovskites represent a flourishing area of research, which is driven by both
their potential application in photovoltaics and optoelectronics and by the fundamental …

Metal halide perovskite quantum dots, with high light-absorption coefficients and tunable
electronic properties, have been widely studied as optoelectronic materials, but their …

While photoluminescence printing is a widely applied anticounterfeiting technique, there are
still challenges in developing new generation anticounterfeiting materials with high security …