Single-crystal – oriented-crystal – and epitaxy growth processes; – Processes of growth from liquid or supercritical state – Having growth from a solution comprising a solvent which is...
Reexamination Certificate
2006-09-12
2006-09-12
Hiteshew, Felisa (Department: 1722)
Single-crystal, oriented-crystal, and epitaxy growth processes;
Processes of growth from liquid or supercritical state
Having growth from a solution comprising a solvent which is...
C117S011000, C977S726000
Reexamination Certificate
active
07105051
ABSTRACT:
The present invention provides substantially monodisperse colloidal nanocrystals and new preparative methods for the synthesis of substantially monodisperse colloidal nanocrystals. These synthetic methods afford the ability to tune nanocrystal size and size distribution. By using non-coordinating solvents in the synthetic process, these procedures constitute easier, less expensive, safer, and more environmentally “green” methods than those currently in use. This invention is generally applicable to any II–VI or III–V semiconductor material, and may be useful in generating metal-nonmetal compounds involving transition metals as well.
REFERENCES:
patent: 5505928 (1996-04-01), Alivisatos et al.
patent: 5559057 (1996-09-01), Goldstein
patent: 6136156 (2000-10-01), El-Shall et al.
patent: 6623559 (2003-09-01), Huang
patent: 6645444 (2003-11-01), Goldstein
patent: 2003/0097976 (2003-05-01), Zehnder et al.
Examiner STN Database Search, 24 Abstracts, Dec. 10, 2004.
Artemyev, Mikhail V., et al., “Light Trapped in a Photonic Dot: Microspheres Act as a Cavity for Quantum Dot Emission,”Nano Letters, vol. 1, No. 6, 2001, pp. 309-314.
Brennan, J.G., et al., “Bulk and Nanostructure Group II-VI Compounds from Molecular Organometallic Precursors,”Chem. Mater., vol. 2, No. 4, 1990, pp. 403-409.
Bruchez Jr., Marcel, et al., “Semiconductor Nanocrystals as Fluorescent Biological Labels,”Science, vol. 281, Sep. 25, 1998, pp. 2013-2016.
Chan, Warren C. W., et al., “Quantum Dot Bioconjugates for Ultrasensitive Nonisotopic Detection,”Science, vol. 281, Sep. 25, 1998, pp. 2016-2018.
Cumberland, Scott L., et al., “Inorganic Clusters as Single-Source Precursors for Preparation of CdSe, ZnSe, and CdSe/ZnS Nanomaterials,”Chem. Mater., vol. 14, No. 4, 2002, pp. 1576-1584.
Dabbousi, B.O., et al., “(CdSe)ZnS Core-Shell Quantum Dots: Synthesis and Characterization of a Size Series of Highly Luminescent Nanocrystallites,”J. Phys. Chem. B, vol. 101, No. 46, 1997, pp. 9463-9475.
Hines, Margaret A., et al., “Bright UV-Blue Luminescent Colloidal ZnSe Nanocrystals,”J. Phys. Chem. B, vol. 102, No. 19, 1998, pp. 3655-3657.
Hines, Margaret A., et al., “Synthesis and Characterization of Strongly Luminescing ZnS-Capped CdSe Nanocrystals,”J. Phys. Chem., vol. 100, No. 2, 1996, pp. 468-471.
Hoheisel, W., et al., “Threshold for quasicontinuum absorption and reduced luminescence efficiency in CdSe nanocrystals,”J. Chem. Phys., vol. 101, No. 10, 1994, pp. 8455-8460.
Jun, Young-wook, et al., “Controlled Synthesis of Multi-armed CdS Nanorod Architectures Using Monosurfactant System,”J. Am. Chem. Soc., vol. 123, No. 21, 2001, pp. 5150-5151.
Klimov, V. I., et al., “Optical Gain and Stimulated Emission in Nanocrystal Quantum Dots,”Science, vol. 290, Oct. 13, 2000, pp. 314-317.
Labella, V. P., et al., “Atomic Structure of the GaAs(001)-(2 × 4) Surface Resolved Using Scanning Tunneling Microscopy and First-Principles Theory,”Physical Review Letters, vol. 83, No. 15, Oct. 11, 1999, pp. 2989-2992.
Lee, Jinwook, et al., “Full Color Emission from II-VI Semiconductor Quantum Dot-Polymer Composites”Adv. Mater., vol. 12, No. 15, Aug. 2, 2000, pp. 1102-1105.
Lemon, Buford I., et al., “Preparation and Characterization of Dendrimer-Encapsulated CdS Semiconductor Quantum Dots,”J. Am. Chem. Soc., vol. 122, No. 51, 2000, pp. 12886-12887.
Murray, C.B., et al., “Synthesis and Characterization of Nearly Monodisperse CdE (E = S, Se, Te) Semiconductor Nanocrystallites,”J. Am. Chem. Soc., vol. 115, 1993, pp. 8706-8715.
Norris, D.J., et al., “High-Quality Manganese-Doped ZnSe Nanocrystals,”Nano Letters, vol. 1, No. 1, 2001, pp. 3-7.
Peng, Xiaogang, et al., “Epitaxial Growth of Highly Luminescent CdSe/CdS Core/Shell Nanocrystals with Photostability and Electronic Accessibility,”J. Am. Chem. Soc., vol. 119, No. 30, 1997, pp. 7019-7029.
Peng, Xiaogang, et al., “Kinetics of II-VI and III-V Colloidal Semiconductor Nanocrystal Growth: 'Focusing of Size Distributions,”J. Am. Chem. Soc., vol. 120, No. 21, 1998, pp. 5343-5344.
Peng, Xiaogang, et al., “Shape control of CdSe nanocrystals,”Nature, vol. 404, Mar. 2, 2000, pp. 59-61.
Peng, Z. Adam, et al., “Formation of High-Quality CdTe, CdSe, and CdS Nanocrystals Using CdO as Precursor,”J. Am. Chem. Soc., vol. 123, No. 1, 2001, pp. 183-184.
Peng, Z. Adam, et al., “Mechanisms of the Shape Evolution of CdSe Nanocrystals,”J. Am. Chem. Soc., vol. 123, No. 7, 2001, pp. 1389-1395.
Pickett, Nigel L., et al., “Syntheses of Semiconductor Nanoparticles Using Single-Molecular Precursors,”The Chemical Record, vol. 1, 2001, pp. 467-479.
Talapin, Dmitri V., et al., “Highly Luminescent Monodisperse CdSe and CdSe/ZnS Nanocrystals Synthesized in a Hexadecylamine-Trioctylphosphine Mixture,”Nano Letters, vol. 1, No. 4, 2001, pp. 207-211.
Qu, Lianhue, et al., “Alternative Routes toward High Quality CdSe Nanocrystals,”Nano Letters, vol. 1, No. 6, 2001, pp. 333-337.
Vossmeyer, T., et al., “CdS Nanoclusters: Synthesis, Characterization, Size Dependent Oscillator Strength, Temperature Shift of the Excitonic Transition Energy, and Reversible Absorbance Shift,”J. Phys. Chem, vol. 98, No. 13, 1994, pp. 7665-7673.
Battaglia David
Peng Xiaogang
Yu Weiyong
Hiteshew Felisa
Kilpatrick & Stockton LLP
The Board of Trustees of the University of Arkansas
Wimbish J. Clinton
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