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US 7,252,699 B2Granted
Method for patterning metal using nanoparticle containing precursors
AssigneeArizona Board of Regents
InventorsJoseph W. Perry, Seth R. Marder, Francesco Stellacci
Life of this patent
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Abstract
Continuous, conducting metal patterns can be formed from metal nanoparticle containing films by exposure to radiation (FIG. 1). The metal patterns can be one, two, or three dimensional and have high resolution resulting in feature sizes in the order of micron down to nanometers. Compositions containing the nanoparticles coated with a ligand and further including a dye, a metal salt, and either a matrix or an optional sacrificial donor are also disclosed.
Claims24
A method, comprising:
- subjecting a metal nanoparticles containing composition to radiation, thereby effecting a growth of said nanoparticles;
- and forming a continuous or semi-continuous metal phase, said metal nanoparticle containing composition, including:
- a ligand coated metal nanoparticle;
- a dye;
- a metal salt;
- and
- optionally a sacrificial donor.
4 more elements
A method, comprising:
- subjecting a metal nanoparticles containing composition to radiation, thereby effecting a growth of said nanoparticles;
- and
- forming a continuous or semi-continuous metal phase, said metal nanoparticle containing composition including:
- a ligand coated metal nanoparticle;
- a dye;
- a metal salt;
- and
- a matrix.
5 more elements
A method, comprising:
- forming a film from a metal nanoparticle, a metal salt, a dye and a polymer matrix;
- and
- exposing said film to radiation, thereby producing a pattern of a conductive metal.
Dependencies are inferred from the claim text.