The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2005
Filed:
Dec. 26, 2002
Moungi G. Bawendi, Boston, MA (US);
Jason Heine, Lincoln, MA (US);
Klavs F. Jensen, Lincoln, MA (US);
Jeffrey N. Miller, Los Altos Hills, CA (US);
Ronald L. Moon, Atherton, CA (US);
Moungi G. Bawendi, Boston, MA (US);
Jason Heine, Lincoln, MA (US);
Klavs F. Jensen, Lincoln, MA (US);
Jeffrey N. Miller, Los Altos Hills, CA (US);
Ronald L. Moon, Atherton, CA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
An electronic device comprising a population of quantum dots embedded in a host matrix and a primary light source which causes the dots to emit secondary light of a selected color, and a method of making such a device. The size distribution of the quantum dots is chosen to allow light of a particular color to be emitted therefrom. The light emitted from the device may be of either a pure (monochromatic) color, or a mixed (polychromatic) color, and may consist solely of light emitted from the dots themselves, or of a mixture of light emitted from the dots and light emitted from the primary source. The dots desirably are composed of an undoped semiconductor such as CdSe, and may optionally be overcoated to increase photoluminescence.