Title: Metal-doped semiconductor nanoparticles and methods of synthesis thereof

Abstract

The present invention generally relates to binary or higher order semiconductor nanoparticles doped with a metallic element, and thermoelectric compositions incorporating such nanoparticles. In one aspect, the present invention provides a thermoelectric composition comprising a plurality of nanoparticles each of which includes an alloy matrix formed of a Group IV element and Group VI element and a metallic dopant distributed within the matrix.

Inventors:

Ren, Zhifeng ^[1]; Chen, Gang ^[2]; Poudel, Bed ^[3]; Kumar, Shankar ^[1]; Wang, Wenzhong ^[4]; Dresselhaus, Mildred ^[5]

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+ Show Inventor Affiliations

1. Newton, MA
2. Carlisle, MA
3. West Newton, MA
4. Beijing, CN
5. Arlington, MA

Issue Date:

2009-09-08

Research Org.:

Boston College, Chestnut Hill, MA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

988832

Patent Number(s):

7586033

Application Number:

11/120,729

Assignee:

Massachusetts Institute of Technology (Cambridge, MA); The Trustees of Boston College (Chestnut Hill, MA)

Patent Classifications (CPCs):

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

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

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/04 - obtained by TEM, STEM, STM or AFM

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

Y10S977/813 - Of specified inorganic semiconductor composition, e.g. periodic table group IV-VI compositions

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2002/52 - containing elements as dopants
C01P2006/40 - Electric properties
C01P2002/72 - by d-values or two theta-values, e.g. as X-ray diagram

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

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/64 - Nanometer sized, i.e. from 1-100 nanometer

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B19/007 - {Tellurides or selenides of metals

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/03 - obtained by SEM
C01P2004/62 - Submicrometer sized, i.e. from 0.1-1 micrometer

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

H01L35/26 - using compositions changing continuously or discontinuously inside the material

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/38 - cube-like
C01P2004/30 - extending in three dimensions

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B19/002 - {Compounds containing, besides selenium or tellurium, more than one other element, with -O- and -OH not being considered as anions}

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DOE Contract Number:  

FG02-00ER45805

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE