Formation of self-assembled pattern of glycine microcrystals: experiment and computer simulation

The films of glycine consisting of isolated microcrystals were prepared by spin coating and drying of the aqueous solution. Drying leads to dewetting (arising and growth of the holes) and formation of quasi-regular arrays of microcrystals that form the net structure consisting of Voronoi cells. The...

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Bibliographic Details
Published in:Ferroelectrics 2016-05, Vol.496 (1), p.20-27
Main Authors: Shur, V. Ya, Bykov, D. A., Romanyuk, K. N., Rumyantsev, E. L., Kadushnikov, R. M., Mizgulin, V. V., Seyedhosseini, E., Kholkin, A. L.
Format: Article
Language:English
Subjects:
Aqueous solutions
Boundaries
Computer simulation
Crystallization
dewetting
Drying
Ferroelectrics
Formations
Glycine
Mathematical models
Microcrystals
Nucleation
self-assembling
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Summary:The films of glycine consisting of isolated microcrystals were prepared by spin coating and drying of the aqueous solution. Drying leads to dewetting (arising and growth of the holes) and formation of quasi-regular arrays of microcrystals that form the net structure consisting of Voronoi cells. The time dependence of the hole boundary velocity leading to formation of the straight net segments was proposed. Numerical model of hole nucleation and growth by boundary motion was proposed for the computer simulation. The coincidence of the simulated structures obtained within Kolmogorov alpha-model with experimental structures confirmed the validity of proposed approach.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2016.1155401