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US 5,525,377 AGranted
Method of manufacturing encapsulated doped particles
AssigneeU.S. Philips Corporation
InventorsDennis Gallagher, Rameshwar Bhargava, Jacqueline Racz
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Abstract
Doped encapsulated semiconductor nanoparticles of a size (<100 .ANG.) which exhibit quantum effects. The nanoparticles are precipitated and coated with a surfactant by precipitation in an organometallic reaction. The luminescence of the particles may be increased by a further UV curing step.
Claims20
A method of making a doped encapsulated semiconductor nanocrystal comprising the steps of:
- (a) dissolving in first organic solvent an organometallic compound containing a first component of host material;
- (b) dissolving a surfactant in said first organic solvent;
- (c) adding an organometallic compound containing a dopant to said first organic solvent;
- (d) adding a compound which will provide a second component of the host material;
- and
- (e) precipitating doped particles which are coated with the surfactant.
3 more elements
A method of making a doped encapsulated semiconductor nanocrystal comprising the steps of:
- (a) dissolving in a first organic solvent an organometallic compound containing a first component of a host material;
- and
- (b) adding:
- (i) a surfactant;
- (ii) an organometallic compound containing a dopant;
- and
- (iii) a compound which will provide a second component of the host material;
- whereby doped particles precipitate which are coated with the surfactant.
5 more elements
Dependencies are inferred from the claim text.