Fluorescent material with semiconductor nanoparticles...

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Reexamination Certificate

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C428S323000, C428S328000, C977S778000

Reexamination Certificate

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07824767

ABSTRACT:
The present invention provides a thin-film fluorescent material in which semiconductor nanoparticles in a stable condition maintain a high fluorescence quantum yield and can be held at a high concentration in a glass matrix. The present invention also provides optical devices using the thin-film fluorescent material, such as high-brightness displays and lighting systems. The present invention relates to a fluorescent material, in which semiconductor nanoparticles with a fluorescence quantum yield of 15% or more and a diameter of 2 to 5 nanometers are dispersed in a glass matrix at a concentration of 5×10−4mol/l or more and a method for manufacturing the same.

REFERENCES:
patent: 5812716 (1998-09-01), Ohishi
patent: 6803719 (2004-10-01), Miller et al.
patent: 2006/0097624 (2006-05-01), Murase et al.
patent: 2002-211935 (2002-07-01), None
patent: WO 2004/000971 (2003-12-01), None
patent: WO 2004/065296 (2004-08-01), None
Ekimov, “Growth and optical properties of semiconductor nanocrystals in a glass matrix”, Journal of Luminescence 70, 1-20, 1996.
Gao et al; “Strongly Photoluminescent CdTe Nanocrystals by Proper Surface Modification;” J. Phys. Chem. B 1998, 102, pp. 8360-8363.
Lee et al; “Full Color Emission from II-VI Semiconductor Quantum Dot-Polymer Composites;” Adv. Mater. 12, No. 15 (Aug. 2, 2000) pp. 1102-1105.
Zhang et al; “Controlled assembly of fluorescent multilayers from an aqueous solution of CdTe nanocrystals and nonionic carbazole-containing copolymers;” J. Mater. Chem, 13 (2003); pp. 1356-1361.
Halaoui; Layer-by-layer Assembly of Polyacrylate-Capped CdS Nanoparticles in Poly (dialllyldimethylammonium chrolide) on Solid Surfaces; Langmuir 17 (2001), pp. 7130-7136.
Lesser et al; “Highly luminescent thin films from alternating deposition of CdTe nanoparticles and polycations;” Materials Science and Engineering C8-9 (1999) pp. 159-162.
Tang et al; “Semiconductor Nanoparticles on Solid Substrates: Film Structure, Intermolecular Interactions, and Polyelectrolye Effects;” Langmuir 18 (2002) pp. 7035-7040.
Tsuruoka et al; “Synthesis, Surface Modification, and Multilayer Constructions of Mixed-Monolayer-Protected CdS Nanoparticles;” Langmuir 20 (2004) pp. 11169-11174.

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