US Patent 8409475 Method of making semiconductor nanocrystal composites

Patent 8409475 was granted and assigned to EVIDENT TECHNOLOGIES, INC. on April, 2013 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

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EVIDENT TECHNOLOGIES, INC.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

8409475

Date of Patent

April 2, 2013

Patent Application Number

11896549

Date Filed

September 4, 2007

Patent Primary Examiner

Douglas McGinty

Patent abstract

A semiconductor nanocrystal composite comprising a semiconductor nanocrystal composition dispersed in an inorganic matrix material and a method of making same are provided. The method includes providing a semiconductor nanocrystal composition having a semiconductor nanocrystal core, providing a surfactant formed on the outer surface of the composition, and replacing the surfactant with an inorganic matrix material. The semiconductor nanocrystal composite emits light having wavelengths between about 1 and about 10 microns.