Self‐Assembled Colloidal Nanopatterns: Self‐Assembled Colloidal Nanopatterns toward Unnatural Optical Meta‐Materials (Adv. Funct. Mater. 12/2021)

Self-assembled colloidal nanopatterns with sub-wavelength could be considered meta-materials, which exhibit some unnatural bulk electromagnetic behavior, such as a negative refractive index and near-zero index. In article number 2008246, Lianbin Zhang, Gi-Ra Yi, and co-workers summarize the development history and theory of metamaterials, review the recent research on the processing of metamaterials by self-assembly, and provide prospectives on the future direction in this field.