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Title: Morphologically and size uniform monodisperse particles and their shape-directed self-assembly

Abstract

Monodisperse particles having: a single pure crystalline phase of a rare earth-containing lattice, a uniform three-dimensional size, and a uniform polyhedral morphology are disclosed. Due to their uniform size and shape, the monodisperse particles self assemble into superlattices. The particles may be luminescent particles such as down-converting phosphor particles and up-converting phosphors. The monodisperse particles of the invention have a rare earth-containing lattice which in one embodiment may be an yttrium-containing lattice or in another may be a lanthanide-containing lattice. The monodisperse particles may have different optical properties based on their composition, their size, and/or their morphology (or shape). Also disclosed is a combination of at least two types of monodisperse particles, where each type is a plurality of monodisperse particles having a single pure crystalline phase of a rare earth-containing lattice, a uniform three-dimensional size, and a uniform polyhedral morphology; and where the types of monodisperse particles differ from one another by composition, by size, or by morphology. In a preferred embodiment, the types of monodisperse particles have the same composition but different morphologies. Methods of making and methods of using the monodisperse particles are disclosed.

Inventors:
; ; ;
Issue Date:
Research Org.:
INTELLIGENT MATERIAL SOLUTIONS, INC., Princeton, NJ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1390226
Patent Number(s):
9758724
Application Number:
14/878,424
Assignee:
INTELLIGENT MATERIAL SOLUTIONS, INC.
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
DOE Contract Number:  
SC0002158
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Oct 08
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Collins, Joshua E., Bell, Howard Y., Ye, Xingchen, and Murray, Christopher Bruce. Morphologically and size uniform monodisperse particles and their shape-directed self-assembly. United States: N. p., 2017. Web.
Collins, Joshua E., Bell, Howard Y., Ye, Xingchen, & Murray, Christopher Bruce. Morphologically and size uniform monodisperse particles and their shape-directed self-assembly. United States.
Collins, Joshua E., Bell, Howard Y., Ye, Xingchen, and Murray, Christopher Bruce. Tue . "Morphologically and size uniform monodisperse particles and their shape-directed self-assembly". United States. https://www.osti.gov/servlets/purl/1390226.
@article{osti_1390226,
title = {Morphologically and size uniform monodisperse particles and their shape-directed self-assembly},
author = {Collins, Joshua E. and Bell, Howard Y. and Ye, Xingchen and Murray, Christopher Bruce},
abstractNote = {Monodisperse particles having: a single pure crystalline phase of a rare earth-containing lattice, a uniform three-dimensional size, and a uniform polyhedral morphology are disclosed. Due to their uniform size and shape, the monodisperse particles self assemble into superlattices. The particles may be luminescent particles such as down-converting phosphor particles and up-converting phosphors. The monodisperse particles of the invention have a rare earth-containing lattice which in one embodiment may be an yttrium-containing lattice or in another may be a lanthanide-containing lattice. The monodisperse particles may have different optical properties based on their composition, their size, and/or their morphology (or shape). Also disclosed is a combination of at least two types of monodisperse particles, where each type is a plurality of monodisperse particles having a single pure crystalline phase of a rare earth-containing lattice, a uniform three-dimensional size, and a uniform polyhedral morphology; and where the types of monodisperse particles differ from one another by composition, by size, or by morphology. In a preferred embodiment, the types of monodisperse particles have the same composition but different morphologies. Methods of making and methods of using the monodisperse particles are disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {9}
}

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Works referenced in this record:

Ultrasmall Monodisperse NaYF4:Yb3+/Tm3+ Nanocrystals with Enhanced Near-Infrared to Near-Infrared Upconversion Photoluminescence
journal, May 2010


Comparative investigation on structure and luminescence properties of fluoride phosphors codoped with Er3+/Yb3+
journal, October 2009


Optically active uniform potassium and lithium rare earth fluoride nanocrystals derived from metal trifluroacetate precursors
journal, January 2009


Controlled Synthesis and Luminescence of Lanthanide Doped NaYF4 Nanocrystals
journal, February 2007


Synthesis of Hexagonal-Phase NaYF4:Yb,Er and NaYF4:Yb,Tm Nanocrystals with Efficient Up-Conversion Fluorescence
journal, December 2006