Luminescent nanoparticles and methods for their preparation

Coating processes – Particles – flakes – or granules coated or encapsulated – Inorganic base

Reexamination Certificate

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C427S216000, C427S217000, C427S314000, C427S318000, C427S319000

Reexamination Certificate

active

10985249

ABSTRACT:
Methods for synthesizing luminescent nanoparticles and nanoparticles prepared by such methods are provided. The nanoparticles are prepared by a method in which an additive is included in the reaction mixture. The additive may be a Group 2 element, a Group 12 element, a Group 13 element, a Group 14 element, a Group 15 element, or a Group 16 element. In additions, a luminescent nanoparticle is provided that comprises a semiconductive core surrounded by an inorganic shell, an interfacial region and an additive present in the interfacial region or both the interfacial region and the shell.

REFERENCES:
patent: 6207229 (2001-03-01), Bawendi et al.
patent: 6225198 (2001-05-01), Alivisatos et al.
patent: 6306736 (2001-10-01), Alivisatos et al.
patent: 6322901 (2001-11-01), Bawendi et al.
patent: 6586095 (2003-07-01), Wang et al.
patent: 6682596 (2004-01-01), Zehnder et al.
patent: 6685986 (2004-02-01), Oldenburg et al.
patent: 6815064 (2004-11-01), Treadway et al.
patent: 2003/0017264 (2003-01-01), Treadway et al.
patent: 2006/0057382 (2006-03-01), Treadway et al.
patent: WO 99/26299 (1999-05-01), None
Dabbousi et al. (1997), “(CdSe)ZnS Core-Shell Quantum Dots: Synthesis and Characterization of a Size Series of Highly Luminescent Nanocrystallites,”J. Phys. Chem. B101(46):9463-9475.
Danek et al. (1996), “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.
Hines et al. (1996), “Synthesis and Characterization of Strongly Luminescing ZnS-Capped CdSe Nanocrystals,”J. Phys. Chem.100(2):468-471.
Kortan et al. (1990), “Nucleation and Growth of CdSe on ZnS Quantum Crystallite Seeds, and Vice Versa, in Inverse Micelle Media,”J. Am. Chem. Soc.112(4):1327-1332.
Peng et al. (1997), “Epitaxial Growth of Highly Luminescent CdSe/CdS Core/Shell Nanocrystals with Photostability and Electronic Accessibility,”J. Am. Chem. Soc.119(30):7019-7029.
Peng et al. (1998), “Kinetics of II-VI and III-V Colloidal Semiconductor Nanocrystal Growth: ‘Focusing’ of Size Distributions,”J. Am. Chem. Soc.120(21):5343-5344.
Peng et al. (2001), “Formation of High-Quality CdTe, CdSe, and CdS Nanocrystal Using CdS as Precursor,”J. Am. Chem. Soc.123(1):183-184.
Peng et al. (2001), “Mechanisms of the Shape Evolution of CdSe Nanocrystals,”J. Am. Chem. Soc.123(7):1389-1395.
Qu et al. (2001), “Alternative Routes toward High Quality CdSe Nanocrystls,”Nano Letters1(6):333-337.
Tian et al. (1996), “Coupled Composite CdS-CdSe and Core-Shell Types of (CdS)CdSe and (CdSe)CdS Nanoparticles,”J. Phys. Chem.100(21):8927-8939.
Youn et al. (1988), “Dihexadecyl Phosphate, Vesicle-Stabilized and In Situ Generated Mixed CdS and ZnS Semiconductor Particles. Preparation and Utilization for Photosensitized Charge Separation and Hydrogen Generation,”J. Phys. Chem.92(22):6320-6327.

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