| Autor: |
Derek R. Oliver, C. T. Harrower |
| Rok vydání: |
2006 |
| Předmět: |
|
| Zdroj: |
Key Engineering Materials. 314:121-126 |
| ISSN: |
1662-9795 |
| Popis: |
Gold nanoparticles were fabricated via the precipitation of gold that follows the reduction of tetrachloroauric acid in the presence of a ligand such as citric acid. Synthesis and stabilization of gold nanoparticles has been achieved in a variety of solution environments whose character ranges from polar (water) to non-polar such as dodecane. The size of the nanoparticles was measured through Mie theory analysis of extinction of UV-visible spectra and transmission electron microscope (TEM) images of particles dried onto a TEM grid. Successful mechanical ‘break-junction’ experiments in air and in the colloidal solutions demonstrate that the lowdimensional transport character observed in such experiments is not significantly affected by the solution/environment. Evidence has been obtained that, at and near the time of formation, the dielectrophoretically-grown wires formed within these colloidal suspensions have similar electrical transport characteristics to those found in mechanical break junctions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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