Silver metal nanosized particles: Control of particle size, self assemblies in 2D and 3D superlattices and optical properties
作者:
M. P. Pileni,
A. Taleb,
C. Petit,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1998)
卷期:
Volume 19,
issue 2-3
页码: 185-206
ISSN:0193-2691
年代: 1998
DOI:10.1080/01932699808913171
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Water in oil droplets are used to control the size of silver metal nanoparticles. After synthesis, the silver metal particles are extracted from reverse micelles and redispersed in a non polar solvent. By increasing the size of the water droplets the average size of silver nanoparticles increases from 2 nm to 7 nm with a rather high size distribution. To narrow the panicle distribution a size selected precipitation method is used. By deposition of a dilute solution containing the coated particles on a carbon grid, the particles arrange themselves in a monolayer organized in a hexagonal network. At high particle concentration, the particles are organized in multilayers forming microcrystals arranged in a face centered cubic structure. The optical properties of the silver nanoparticles isolated in micellar solution or self-assembled in 2D or 3D supperlattices are reported.
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