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Fabrication and Light‐Transmission Properties of Monolayer Square Symmetric Colloidal Crystals via Controlled Convective Self‐assembly on 1D Grooves
Author(s) -
Sun J.,
Li Y. Y.,
Dong H.,
Zhan P.,
Tang C. J.,
Zhu M. W.,
Wang Z. L.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701175
Subject(s) - monolayer , materials science , colloid , colloidal crystal , square lattice , spheres , fabrication , self assembly , square (algebra) , groove (engineering) , nanotechnology , suspension (topology) , substrate (aquarium) , optics , condensed matter physics , chemical engineering , geometry , physics , alternative medicine , mathematics , ising model , pathology , engineering , homotopy , metallurgy , medicine , astronomy , pure mathematics , oceanography , geology
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.