Morphogenesis of Evaporation-Induced Self-Assemblies of Polypyrrole Nanoparticles Dispersed in a Liquid Medium
- 24 August 2004
- journal article
- Published by American Chemical Society (ACS) in Langmuir
- Vol. 20 (20), 8419-8422
- https://doi.org/10.1021/la049259b
Abstract
Evaporation-induced self-assemblies (EISAs) with various morphologies were selectively fabricated by drying a solution containing polypyrrole nanoparticles. The morphogenesis of EISAs was strongly dependent upon the solvent evaporation rate and the nanoparticle concentration. In the case of fast evaporation, 2-D dendrites or pseudo 1-D dendrites were observed. When the liquid medium evaporated slowly, ring and spherulitic assemblies took place. Multiple rings could be created on a substrate surface under one single drop.Keywords
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