Two-dimensional patterns of ultra-fine particles prepared by self-organization

Autor:	Masatsugu Shimomura, Tetsuro Sawadaishi
Rok vydání:	2005
Předmět:	Mesoscopic physics Materials science Scanning electron microscope food and beverages Substrate (electronics) Casting Condensed Matter::Soft Condensed Matter Crystallography Colloid Colloid and Surface Chemistry Chemical physics embryonic structures Monolayer Ultrafine particle Mica
Zdroj:	Colloids and Surfaces A: Physicochemical and Engineering Aspects. :71-74
ISSN:	0927-7757
DOI:	10.1016/j.colsurfa.2004.10.042
Popis:	Mesoscopic regular patterns consisting of ultra-fine particles were formed on solid substrate by simply casting of their aqueous colloidal dispersions. Periodic stripes were observed on mica surface parallel to the receding direction of the solution edge. The periodicities were controllable by changing the temperature of the substrate. The thickness of each stripe was equivalent to monolayer of particles. From atomic force microscopy (AFM) and scanning electron microscopy (SEM), it was suggested that the monolayer of ultra-fine particles were hexagonally packed in the stripe patterns. In addition, by increasing the concentration of the aqueous dispersion of ultra-fine particles, some different types of stripe patterns were observed. The patterns were also readily formed by self-organization with low cost and low energy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ce0c34dbf0584f9aba61a5241140df1f https://doi.org/10.1016/j.colsurfa.2004.10.042 Zobrazit plný text záznamu Full Text from ScienceDirect