Monodisperse, high refractive index, highly charged ZnS colloids self assemble into crystalline colloidal arrays

Effect of void structures in crystalline structure on the shear moduli of charged colloidal crystals

“…The charged colloidal particles in dispersion can self-assemble into crystalline structures under some appropriate conditions [1][2][3]. The formed colloidal crystals are analogous to the crystals formed by atoms and molecules and have become valuable model systems of condensed matter particularly because of their easily accessible length and time scales [4,5].…”

Facile Synthesis of Monodispersed Polysulfide Spheres for Building Structural Colors with High Color Visibility and Broad Viewing Angle

“…To overcome these problems, different strategies have been developed. For example, inorganic colloidal spheres with a high refractive index, such as Se@Ag 2 Se, ZnS, and TiO 2 , are preferred and synthesized into colloidal spheres to create structural color materials . However, breaking through the limitation of kinetics control of the synthetic process and achieving large quantities of the product of monodispersed inorganic colloidal spheres are still major challenges .…”

“…For example, inorganic colloidal spheres with a high refractive index, such as Se@Ag 2 Se, ZnS, and TiO 2 , are preferred and synthesized into colloidal spheres to create structural color materials. [23,26,27] However, breaking through the limitation of kinetics control of the synthetic process and achieving large quantities of the product of monodispersed inorganic colloidal spheres are still major challenges. [28,29] Likewise, the difficulty to fabricate large-scale and highquality inorganic colloidal arrays with long-range order still needs to be overcome due to the low particle surface charge and high particle mass density (e.g., 4.23 g cm −3 for TiO 2 and 4.09 g cm −3 for ZnS, compared with 1.0 and 2.0 g cm −3 for polystyrene and silica, respectively).…”

Inverse opal photonic crystal of chalcogenide glass by solution processing

“…Such novel PBG devices require wide bandgaps and large area photonic crystals films. In the CC opals the wide bandgap (enhancing the Bragg reflection) can be achieved either by functionalization of lower refractive index silica or polymer opals with higher refractive index materials [14] and/or by fabrication of inverse opal (IO) PBG structures [15][16][17].…”