Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1555042 | Superlattices and Microstructures | 2008 | 9 Pages |
Abstract
In this work, we investigate the chemical conditions for inducing a self-organized growth of 2D and 1D structures of gold nanoparticles (NPs), 50 nm diameter tri-sodium citrate stabilized, assembled onto chemically modified glass substrates through 3-Aminopropyltriethatoxysilane. The aggregation process of the nanoparticles on the silanised surface has been controlled by optimizing the concentration limit, immersion time and annealing process of NPs. A recipe to obtain the appropriate electrical charge conditions necessary for inducing the dimensionality transition of the organized nanostructures from 2D to 1D has been determined through the comparison between two deposition routes employing different polar solvents (water and ethanol). The self-organized growth of gold NPs into structures of different dimensionality has been extensively investigated by Atomic Force Microscopy and discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Chandramohan George, Davide Ricci, Ermanno Di Zitti,