Abstract
We present a new technique for large-scale fabrication of colloidal crystals with controllable quality and thickness.
The method is based on vertical deposition in the presence of aDC electric field normal to the conducting substrate. The
crystal structure and quality are quantitatively characterized by microradian X-ray diffraction, scanning electron
microscopy, and optical reflectometry. Attraction between the charged colloidal spheres and the substrate promotes
growth of thicker crystalline films, while the best-quality crystals are formed in the presence of repulsion. Highly ordered
thick crystalline layers with a small amount of stacking faults and a low mosaic spread can be obtained by optimizing the
growth conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 2346-2351 |
| Number of pages | 7 |
| Journal | Langmuir |
| Volume | 26 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2010 |
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