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Rapid Fabrication of Binary Colloidal Crystals by Stepwise Spin‐Coating
Author(s) -
Wang D.,
Möhwald H.
Publication year - 2004
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.200305565
Subject(s) - materials science , colloid , fabrication , spin coating , coating , colloidal crystal , spin (aerodynamics) , binary number , spheres , nanotechnology , chemical engineering , thermodynamics , physics , medicine , alternative medicine , arithmetic , mathematics , pathology , engineering , astronomy
Binary colloidal crystals (see Figure) of large (L) and small (S) silica colloidal spheres with large diameter ratios have been rapidly constructed by stepwise spin‐coating. The dominant structure of the resultant crystals is LS 2 , with which the LS 3 structure usually coexists. The diameter ratio and the speed of spin‐coating are used to control the structures, with higher spin speeds favoring the formation of LS 3 structures.