Title: Composite material including nanocrystals and methods of making

Abstract

Temperature-sensing compositions can include an inorganic material, such as a semiconductor nanocrystal. The nanocrystal can be a dependable and accurate indicator of temperature. The intensity of emission of the nanocrystal varies with temperature and can be highly sensitive to surface temperature. The nanocrystals can be processed with a binder to form a matrix, which can be varied by altering the chemical nature of the surface of the nanocrystal. A nanocrystal with a compatibilizing outer layer can be incorporated into a coating formulation and retain its temperature sensitive emissive properties.

Inventors:

Bawendi, Moungi G.; Sundar, Vikram C.

Issue Date:

2010-04-06

Research Org.:

Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1176208

Patent Number(s):

7690842

Application Number:

11/955,224

Assignee:

Massachusetts Institute of Technology (Cambridge, MA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y15/00 - Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE

G01K11/20 - using thermoluminescent materials
G01K2211/00 - Thermometers based on nanotechnology

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L21/02477 - {Selenides}
H01L21/02521 - {Materials}
H01L21/02557 - {Sulfides}
H01L21/0256 - {Selenides}
H01L21/02601 - {Nanoparticles
H01L21/02628 - {using solutions}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S977/778 - within specified host or matrix material, e.g. nanocomposite films
Y10S977/779 - Possessing nanosized particles, powders, flakes, or clusters other than simple atomic impurity doping
Y10S977/785 - Electrically insulating host material
Y10S977/813 - Of specified inorganic semiconductor composition, e.g. periodic table group IV-VI compositions
Y10S977/815 - Group III-V based compounds, e.g. AlaGabIncNxPyAsz
Y10S977/816 - III-N based compounds, e.g. AlxGayInzN
Y10S977/818 - III-P based compounds, e.g. AlxGayIn2P
Y10S977/819 - III-As based compounds, e.g. AlxGayInzAs
Y10S977/82 - III-Sb based compounds, e.g. AlxGayInzSb
Y10S977/824 - Group II-VI nonoxide compounds, e.g. CdxMnyTe

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DOE Contract Number:  

FG02-02ER45974

Resource Type:

Patent

Resource Relation:

Patent File Date: 2007 Dec 12

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY