Nanocrystal doped matrixes

Details Nanocrystal doped matrixes Nanocrystal doped matrixes

2008-05-20

2008-05-20

Ahmad, Nasser (Department: 1794)

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Sheet including cover or casing

Complete cover or casing

C252S30140R, C252S30140S, C252S30160R, C252S30160S, C313S491000, C313S503000, C313S512000, C428S068000, C428S076000, C977S715000, C977S753000, C977S834000

Reexamination Certificate

active

07374807

ABSTRACT:
The present invention provides matrixes doped with semiconductor nanocrystals. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes of the present invention can also be utilized in refractive index matching applications. In other embodiments, semiconductor nanocrystals are embedded within matrixes to form a nanocrystal density gradient, thereby creating an effective refractive index gradient. The matrixes of the present invention can also be used as filters and antireflective coatings on optical devices and as down-converting layers. The present invention also provides processes for producing matrixes comprising semiconductor nanocrystals.

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