Title: Metal chalcogenide synthesis method and applications

Abstract

A method for synthesizing a metal chalcogenide nanocrystal (NC) material includes reacting a metal material and an ammonium chalcogenide material in an organic solvent material. The method provides that the metal chalcogenide nanocrystal material may be synthesized by a heating-up method at large scale (i.e., greater than 30 grams). Ammonium chalcogenide salts exhibit high reactivity and metal chalcogenide nanocrystals can be synthesized at low temperatures (i.e., less than 200° C.) with high conversion yields (i.e., greater than 90 percent).

Inventors:

Zhang, Haitao; Robinson, Richard D.

Issue Date:

2020-08-25

Research Org.:

Cornell Univ., Ithaca, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1735178

Patent Number(s):

10752514

Application Number:

14/426,281

Assignee:

Cornell University (Ithaca, NY)

Patent Classifications (CPCs):

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

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

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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 C01B - NON-METALLIC ELEMENTS

C01B17/20 - Methods for preparing sulfides or polysulfides, in general
C01B19/007 - {Tellurides or selenides of metals

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G11/02 - Sulfides
C01G19/00 - Compounds of tin
C01G29/00 - Compounds of bismuth
C01G3/12 - Sulfides
C01G45/00 - Compounds of manganese
C01G49/12 - Sulfides {
C01G5/00 - Compounds of silver
C01G9/08 - Sulfides

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

C01P2002/60 - Compounds characterised by their crystallite size
C01P2002/72 - by d-values or two theta-values, e.g. as X-ray diagram
C01P2002/84 - by UV- or VIS- data
C01P2004/04 - obtained by TEM, STEM, STM or AFM
C01P2004/64 - Nanometer sized, i.e. from 1-100 nanometer
C01P2006/80 - Compositional purity

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

C09K11/565 - {with zinc cadmium}
C09K11/582 - {Chalcogenides}
C09K11/7407 - {Chalcogenides}

C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH

C30B29/46 - Sulfur-, selenium- or tellurium-containing compounds
C30B29/50 - Cadmium sulfide
C30B29/60 - characterised by shape
C30B7/14 - the crystallising materials being formed by chemical reactions in the solution

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DOE Contract Number:  

SC0001086

Resource Type:

Patent

Resource Relation:

Patent File Date: 09/09/2013

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE