Please use this identifier to cite or link to this item:
|Title:||Self-assembly of crack-free silica colloidal crystals on patterned silicon substrates|
|Citation:||Cai, Z., Teng, J., Xia, D., Zhao, X.S. (2011-05-26). Self-assembly of crack-free silica colloidal crystals on patterned silicon substrates. Journal of Physical Chemistry C 115 (20) : 9970-9976. ScholarBank@NUS Repository. https://doi.org/10.1021/jp201674x|
|Abstract:||Face-centered cubic (fcc) (111)-orientated twodimensional (2D) and three-dimensional (3D) crack-free silica colloidal crystals (CCs) were fabricated on patterned silicon substrates via a vertical deposition method. The influence of the surface properties of the substrate and the concentration of colloidal microspheres on the self-assembly were studied. The results showed that monolayer of silica microspheres selfassembled on a hydrophobic substrate surface while on a hydrophilic surface multilayer of silica microspheres formed under otherwise the same experimental conditions. The number of CC layers grown on the patterned substrate was proportional to the volume fraction of the colloidal microspheres. The optical properties of the samples were less influenced by the patterned surface with increasing the volume fraction of the colloidal suspension when the patterned substrates were fully covered by the CCs. The results presented in this paper reveal that the vertical deposition method can allow the formation of crack-free and well-ordered 3D CCs in large domains on patterned surfaces. © 2011 American Chemical Society.|
|Source Title:||Journal of Physical Chemistry C|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Oct 18, 2018
WEB OF SCIENCETM
checked on Oct 10, 2018
checked on Sep 29, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.