Over the last three decades, photonic crystals (PhCs) have attracted intense interests thanks
to their broad potential applications in optics and photonics. Generally, these structures can …

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

Impelled by the need to find solutions to new challenges of modern technologies new
materials with unique properties are being explored. Among various new materials that …

Controlled assembly of inorganic nanoparticles with different compositions, sizes and
shapes into higher-order structures of collective functionalities is a central pursued objective …

Polymer-based responsive structural color materials are polymers with ordered
microstructures that can change colors. They offer unique advantages and present a novel …

Counterfeiting is a growing global issue causing severe negative impacts on the social
economy and posing serious security threats to individuals and communities. However, the …

Structural colors are colors generated by the interaction between incident light and
nanostructures. Structural colors have been studied for decades due to their promising …

Various kinds of optical devices have been designed for unique functionality based on a
deeper understanding of optical principles. Recently, the research of functional optics has …

Structurally coloured materials that change their colour in response to mechanical stimuli
are uniquely suited for optical sensing and visual communication,,–. The main barrier to their …

Optical nanomaterials have been widely used in anticounterfeiting applications. There have
been significant developments powered by recent advances in material science, printing …