Abstract
First results on electric field induced aggregation in a novel colloidal film are presented. The aggregate appears as a dark structure on the shiny background of the metallic colloidal film that forms at the interface between two immiscible liquids. A variety of shapes are observed, ranging from compact circular, to highly ramified dendritic ones, depending on control parameters such as voltage and chemical composition. The aggregation process was investigated for a wide range of parameters by video photography and subsequent pattern analysis, as well as by Auger spectroscopic measurements of dried samples. A new type of mechanism-a combination of electroaggregation of the colloid particles and electrodeposition of metal ions-is proposed to account for the observations.
| Original language | English |
|---|---|
| Pages (from-to) | 189-199 |
| Number of pages | 11 |
| Journal | Physica A: Statistical Mechanics and its Applications |
| Volume | 200 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - 15 Nov 1993 |
Bibliographical note
Funding Information:The assistanceo f Gila Zipori in the calculations,Y ehiel Hubara in the experimental work, stimulating discussionsw ith Shlomo Havlin, and the cooperationo f Micha Pollak in the Auger studiesa re gratefullya cknowledged. This work was partially supported by the US-Israel Binational Science Foundation, Jerusalem.
Funding
The assistanceo f Gila Zipori in the calculations,Y ehiel Hubara in the experimental work, stimulating discussionsw ith Shlomo Havlin, and the cooperationo f Micha Pollak in the Auger studiesa re gratefullya cknowledged. This work was partially supported by the US-Israel Binational Science Foundation, Jerusalem.
| Funders | Funder number |
|---|---|
| US-Israel Binational Science Foundation |