Abstract
Self-organization of colloidal spheres within a channel, of which a 1D periodic groove substrate is used as the bottom substrate, is studied. We demonstrate that high-quality monolayer square symmetric colloidal crystals can be achieved only when the colloidal suspension drying front is set parallel to close-packing rows of a commensurate square lattice of the 1D periodic grooves. Experimental optical characterization and theoretical simulations of the samples are presented and discussed.
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