Semiconductor device manufacturing: process – Making device or circuit emissive of nonelectrical signal
Reexamination Certificate
2005-05-10
2005-05-10
Nguyen, Tuan H. (Department: 2813)
Semiconductor device manufacturing: process
Making device or circuit emissive of nonelectrical signal
C438S029000, C438S086000
Reexamination Certificate
active
06890777
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.
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Bawendi Moungi G.
Heine Jason
Jensen Klavs F.
Miller Jeffrey N.
Moon Ronald L.
Choate Hall & Stewart
Hewlett--Packard Company
Massachusetts Institute of Technology
Nguyen Tuan H.
Nugent Elizabeth E.
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