Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9829410 | Journal of Crystal Growth | 2005 | 6 Pages |
Abstract
We have controlled the spatial distribution of organic nanocrystals grown in sol-gel thin films prepared by spin-coating. This spatial control of nucleation is carried out through the difference in confinement between the surface and the depth of the sol-gel thin films at the first stage of the coating process. Thus, we can direct the nucleation sites in grooves or wells of textured substrates. We have achieved, respectively 1- and 2-D ordering of nanocrystals while 3-D patterns have been obtained through a multi-layer process. This nucleation control gives an opportunity to design new 3-D optical data storage or 2-D arrays of luminescent crystals for chemical or biological multi-sensors.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Estelle Botzung-Appert, Julien Zaccaro, Cécile Gourgon, Yves Usson, Patrice L. Baldeck, Alain Ibanez,