Stepwise formation of multilayered nanostructures from macromolecular precursors
US6022590A · kind A · utility
27Cited by
13References
23Claims
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Key dates
| Filing date | Jan 5, 1998 |
| Grant date | Feb 8, 2000 |
| Priority date | — |
| Expiry date | Jan 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A two-step adsorption process for producing ordered organic/inorganic multilayer structures is provided. Multilayered films are formed on metallic and nonmetallic substrates by alternate adsorption of a cationic polyelectrolyte and anionic sheets of a silicate clay. The two-step adsorption process is not only fast but allows also for preparation of multilayer elements of thicknesses greater than about 2200 Angstroms on silicon, and greater than about 1500 Angstroms on gold, silver, and copper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.