Mixed semiconductor nanocrystal compositions

Details Mixed semiconductor nanocrystal compositions Mixed semiconductor nanocrystal compositions

2011-02-15

2011-02-15

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S499000, C313S503000, C252S500000, C257S014000, C257S103000

Reexamination Certificate

active

07888855

ABSTRACT:
Composition comprising one or more energy donors and one or more energy acceptors, wherein energy is transferred from the energy donor to the energy acceptor and wherein: the energy acceptor is a colloidal nanocrystal having a lower band gap energy than the energy donor; the energy donor and the energy acceptor are separated by a distance of 40 nm or less; wherein the average peak absorption energy of the acceptor is at least 20 meV greater than the average peak emission energy of the energy donor; and wherein the ratio of the number of energy donors to the number of energy acceptors is from about 2:1 to about 1000:1.

REFERENCES:
patent: 6501091 (2002-12-01), Bawendi et al.
patent: 2005/0129947 (2005-06-01), Peng et al.

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