title: Formation of spatially patterned colloidal photonic crystals through the control of capillary forces and template recognition.
abstract: We report the formation of microscopic patterns of substrate-supported, 3D planar colloidal crystals using physical confinement in conjunction with surfaces displaying predetermined binary patterns of hydropholicity. The formation process involves a primary self-assembly wherein nano- and microscale colloids order into a photonic fcc lattice via capillary interactions followed by a secondary template-induced crystal cleavage step. Following this method, arbitrary arrays of pattern elements, which preserve structural and orientational properties of the parent crystal, can be easily obtained.
authors.affiliation: Department of Applied Science, University of California, Davis, 95616, USA.
authors.forename: Adrian M
authors.initials: AM
authors.lastname: Brozell
authors.forename: Michelle A
authors.initials: MA
authors.lastname: Muha
authors.forename: Atul N
authors.initials: AN
authors.lastname: Parikh