Method and apparatus for producing nanodrops and nanoparticles and thin film deposits therefrom
US5344676A · kind A · utility
95Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1992 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Oct 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D1/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for producing nanodrops which are liquid drops with diameters less than one micron and producing therefrom solid nanoparticles and uniform and patterned film deposits. A liquid precursor is placed in an open ended tube within which is a solid electrically conductive needle which protrudes beyond the open end of the tube. Surface tension of the liquid at the tube end prevents the liquid from flowing from the tube. Mutually repulsive electric charges are injected into the liquid through the needle, causing the surface tension to be overcome to produce a plurality of liquid jets which break up into nanodrops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.