Highly luminescent color selective nanocrystalline materials

Details Highly luminescent color selective nanocrystalline materials Highly luminescent color selective nanocrystalline materials

2005-03-01

2005-03-01

Le, H. Thi (Department: 1773)

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

C257SE33005, C428S403000, C428S551000, C428S570000, C977S726000

Reexamination Certificate

active

06861155

ABSTRACT:
A coated nanocrystal capable of light emission includes a substantially monodisperse nanoparticle selected from the group consisting of CdX, where x=S, Se, Te and an overcoating of ZnY, where Y=S, Se, uniformly deposited thereon, said coated nanoparticle characterized in that when irradiated the particles exhibit photoluminescence in a narrow spectral range of no greater than about 60 nm, and most preferably 40 nm, at full width half max (FWHM). The particle size of the nanocrystallite core is in the range of about 20 Å to about 125 Å, with a deviation of less than 10% in the core. The coated nanocrystal exhibits photoluminescence having quantum yields of greater than 30%.

REFERENCES:
patent: 3996345 (1976-12-01), Ullman et al.
patent: 4637988 (1987-01-01), Hinshaw et al.
patent: 4777128 (1988-10-01), Lippa
patent: 5262357 (1993-11-01), Alivisatos et al.
patent: 5293050 (1994-03-01), Chapple-Sokol et al.
patent: 5304786 (1994-04-01), Pavlidis et al.
patent: 5354707 (1994-10-01), Chapple-Sokol et al.
patent: 5395791 (1995-03-01), Cheng et al.
patent: 5422489 (1995-06-01), Bhargava
patent: 5434878 (1995-07-01), Lawandy
patent: 5492080 (1996-02-01), Ohkawa et al.
patent: 5499260 (1996-03-01), Takahashi et al.
patent: 5505928 (1996-04-01), Alivisatos et al.
patent: 5515393 (1996-05-01), Okuyama et al.
patent: 5525377 (1996-06-01), Gallagher et al.
patent: 5537000 (1996-07-01), Alivisatos et al.
patent: 5541948 (1996-07-01), Krupke et al.
patent: 5565324 (1996-10-01), Still et al.
patent: 5585640 (1996-12-01), Huston et al.
patent: 5625456 (1997-04-01), Lawandy
patent: 5674698 (1997-10-01), Zarling et al.
patent: 5721099 (1998-02-01), Still et al.
patent: 5736330 (1998-04-01), Fulton
patent: 5747180 (1998-05-01), Miller et al.
patent: 5751018 (1998-05-01), Alivisatos et al.
patent: 5770299 (1998-06-01), Dannenhauer et al.
patent: 5789162 (1998-08-01), Dower et al.
patent: 5882779 (1999-03-01), Lawandy
patent: 5985353 (1999-11-01), Lawton et al.
patent: 5990479 (1999-11-01), Weiss et al.
patent: 6306610 (2001-10-01), Bawendi et al.
patent: 6322901 (2001-11-01), Bawendi et al.
patent: 6423551 (2002-07-01), Weiss et al.
patent: 6607829 (2003-08-01), Bawendi et al.
patent: 20020066401 (2002-06-01), Peng et al.
patent: 20030017264 (2003-01-01), Treadway et al.
patent: WO 9529473 (1995-11-01), None
patent: WO 9804740 (1998-02-01), None
patent: 9819963 (1998-05-01), None
patent: WO 9833070 (1998-07-01), None
patent: WO 9836376 (1998-08-01), None
patent: WO 9846372 (1998-10-01), None
“Synthesis of Monodisperse Nanocrystals and Nanoporous Carbon Material”, University of California, Santa Barbara, Jul. 31, 2004.*
Hyeon, “Synthesis, Characterization, and Applications of Monodisperse Nanocrystals and New Nanostructured Carbon Materials”.*
Murray, “Preparation and Properties Nanocrystals and Nanocrystal Superlattices: Building with Artificial Atoms”, 2004.*
Dabbousi et al, “(CdSe)ZnS Core-Shell Quantum Dots: Synthesis and Characterization of a Size Series of Highly Luminescent Nanocrystallites”, J. Phys. Chem. B 1997, 101, 9463-9475.*
Cumberland et al., “Inorganic Clusters as Single Source Precursors for Preparation of CdSe, ZnSe, and CdSe/ZnS Nanomaterials”, Chem. Mater. 2002, 14, 1576-1584.*
Loher et al., “Epitaxy films of the 3D semiconductor CdS on the 2D layered substrate MX2 prepared by Van der Waals epitaxy” Journal of Crystal Growth, vol. 146, 1995, pp. 408-412.
Tsuji et al., “Characterization of CdS thin film in high efficient CdS/CdTe solar cells”, Journal of Crystal Growth, vol. 214/215, 2000, pp. 1142-1147.
Alivisatos, “Semiconductor Clusters, Nanocrystals, and Quantum Dots,”Science,271:933-937, Feb. 16, 1996.
Alivisatos et al., “Organization of ‘nanocrystal molecules’ using DNA”,Nature,382:609-611, Aug. 15, 1996.
Baldwin et al., “Synthesis of a Small Molecule Combinatorial Library Encoded with Molecular Tags,”J. Am. Chem. Soc.,117:5588-5589, 1995.
Bawendi et al., “Luminescence properties of CdSe quantum crystallites: resonance between interior and surface localized states,”J. Chem. Phys.,96(2):946-954, Jan. 15, 1992.
Beverloo et al., “Preparation and Microscopic Visualization of Multicolor Luminescent Immunophosphors,”Cytometry,13:561-570, 1992.
Chee et al., “Accessing Genetic Information with High-Density DNA Arrays”Science,274(5287):610-614, Oct. 25, 1996.
Coffer et al., “Characterization of quantum-confined CdS Nanocrystallites stabilized by deoxyribonucleic acid (DNA)”Nanotechnology,3:69-76, 1992.
Colvin et al., “Light-emitting diodes made from cadmium selenide nanocrystals and a semiconducting polymer”Nature,370(6488):354-357, Aug. 4, 1994.
Cook, “Scintillation proximity assay: a versatile high-throughput screening technology,”Drug Discovery Today,1(7):287-294, Jul. 1996.
Czarnik, “Encoding methods for combinatorial chemistry”Curr Opin Chem Biol.,1(1):60-66, 1997.
Danek et al., “Synthesis of Luminescent Thin-Film CdSe/ZnSe Quantum Dot Composites Using CdSe Quantum Dots Passivated with an Overlayer of ZnSe”Chem. Mater.,8(1):173-180, 1996.
Egner et al., “Tagging in combinatorial chemistry: the use of coloured and fluorescent bads”Chem. Commun.,735-736, Apr. 21, 1997.
Fodor, “Techwire”Science,277(5324):393-395, Jul. 18, 1997.
Guha et al., “Hybrid organic-inorganic semicoductor-based light-emitting diodes”J. Appl. Phys.,82(8):4126-4128, Oct. 15, 1997.
Jarvis et al., “Solution Synthesis and Photoluminescence Studies of Small Crystallites of Cadmium Telluride,”Mat. Res. Soc. Symp. Proc.,272:229-234, 1992.
Kagan et al., “Electronic Energy Transfer in CdSe Quantum Dot Solids,”Physical Review Letters,76(9):1517-1520, Feb. 26, 1996.
Kagan et al., “Long-range resonance transfer of electronic excitations in close-packed CdSe quantum-dot solids,”Physical Review B,54(12):8633-8643, Sep. 15, 1996-II.
Lee et al., “Surface Derivatization of Nanocrystalline CdSe Semiconductors,”Mat. Res.Soc. Symp. Proc.,452:323-328, Mar. 13, 1997.
Liz-Marzan et al., “Synthesis of Nanosized Gold-Silica Core-Shell Particles”Langmuir,12(18):4329-4335, 1996.
Mahtab et al., “Protein-Sized Quantum Dot Luminescence Can Distinguish between ‘Straight’, ‘Bent’, and ‘Kinked’ Oligonucletides”,J. Am. Chem. Soc.,117:9099-9100, 1995.
Mahtab et al., “Preferential-Absorption of a ‘Kinked’ DNA to a Neutral Curved Surface: Comparison to and Implications for Nonspecific DNA-Pprotein Interactions,”J. Am. Chem. Soc.,118(30):7028-7032, 1996.
McGall et al., “Light-directed synthesis of high-density oligonucleotide arrays using semiconductor photoresists”Proc. Natl. Acad. Sci. USA,93:13555-13560, Nov. 1996.
Moran et al., “Radio Frequency Tag Encoded Combinatorial Library Method for the Discovery of Tripeptide-Substituted Cinnamic Acid Inhibitors of the Protein Tyrosine Phosphatase PTPIB”J. Am. Chem. Soc.,117:10787-10788, 1995.
Müllenborn et al., “Characterization of Solution-Synthesized CdTe and HgTe,”Applied Physics,56:317-321, 1993.
Murphy et al., “Quantum Dots as Inorganic DNA-Binding Proteins,”Mat. Res. Soc. Symp.,452:597-600, Mar. 13, 1997.
Nicolaou et al.,“Radiofrequency Encoded Combinatorial Chemistry”Ingew. Chem. Int. Ed. Engl.,34(20):2289-2291, 1995.
Pehnt et al., “Nanoparticle precursor route to low-temperature spray deposition of CdTe thin films,”Appl. Phys. Lett.,67(15):2176-2178, Oct. 1995.
Peng et al., “Epitaxial Growth of Highly Luminescent CdSe/CdS Core/Shell Nanocrystals with Photostability and Electronic Accessibility,”J. Am. Chem. Soc.,119(30):7019-7029, 1997.
Peng et al., “Synthesis and Isolation of a Homodimer of Cadmium Selenide Nanocryst

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