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Diffusion-limited aggregation in dry nanocrystal films
Published online by Cambridge University Press: 16 May 2012
Abstract
We demonstrate that drop cast films of colloidal nanocrystals containing excess surfactants develop aggregation over several weeks after solvent evaporation. Fingered structures, typical of diffusion-limited aggregation, are created because of the residual mobility that nanocrystals retain in the film. We are able to control the aggregation through the concentration of surfactant molecules and the drying temperature of the films.
Keywords
- Type
- Research Article
- Information
- MRS Online Proceedings Library (OPL) , Volume 1411: Symposium EE – Self Organization and Nanoscale Pattern Formation , 2012 , mrsf11-1411-ee09-38
- Copyright
- Copyright © Materials Research Society 2012