skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method of making highly-confined semiconductor nanocrystals

Abstract

A method of making a colloidal solution of high confinement semiconductor nanocrystals includes: forming a first solution by combining a solvent, growth ligands, and at most one semiconductor precursor; heating the first solution to the nucleation temperature; and adding to the first solution, a second solution having a solvent, growth ligands, and at least one additional and different precursor than that in the first solution to form a crude solution of nanocrystals having a compact homogenous semiconductor region. The method further includes: waiting 0.5 to 20 seconds and adding to the crude solution a third solution having a solvent, growth ligands, and at least one additional and different precursor than those in the first and second solutions; and lowering the growth temperature to enable the formation of a gradient alloy region around the compact homogenous semiconductor region, resulting in the formation of a colloidal solution of high confinement semiconductor nanocrystals.

Inventors:
; ;
Issue Date:
Research Org.:
Eastman Kodak Company, Rochester, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532107
Patent Number(s):
8,784,703
Application Number:
13/275,595
Assignee:
Eastman Kodak Company (Rochester, NY)
DOE Contract Number:  
EE000979
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011-10-18
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Kahen, Keith Brian, Holland, Matthew, and Kuttiatoor, Sudeep Pallikkara. Method of making highly-confined semiconductor nanocrystals. United States: N. p., 2014. Web.
Kahen, Keith Brian, Holland, Matthew, & Kuttiatoor, Sudeep Pallikkara. Method of making highly-confined semiconductor nanocrystals. United States.
Kahen, Keith Brian, Holland, Matthew, and Kuttiatoor, Sudeep Pallikkara. Tue . "Method of making highly-confined semiconductor nanocrystals". United States. https://www.osti.gov/servlets/purl/1532107.
@article{osti_1532107,
title = {Method of making highly-confined semiconductor nanocrystals},
author = {Kahen, Keith Brian and Holland, Matthew and Kuttiatoor, Sudeep Pallikkara},
abstractNote = {A method of making a colloidal solution of high confinement semiconductor nanocrystals includes: forming a first solution by combining a solvent, growth ligands, and at most one semiconductor precursor; heating the first solution to the nucleation temperature; and adding to the first solution, a second solution having a solvent, growth ligands, and at least one additional and different precursor than that in the first solution to form a crude solution of nanocrystals having a compact homogenous semiconductor region. The method further includes: waiting 0.5 to 20 seconds and adding to the crude solution a third solution having a solvent, growth ligands, and at least one additional and different precursor than those in the first and second solutions; and lowering the growth temperature to enable the formation of a gradient alloy region around the compact homogenous semiconductor region, resulting in the formation of a colloidal solution of high confinement semiconductor nanocrystals.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {7}
}

Patent:

Save / Share:

Works referenced in this record:

Ternary and quarternary nanocrystals, processes for their production and uses thereof
patent, June 2006


Highly luminescent color-selective nano-crystalline materials
patent, November 2001


    Works referencing / citing this record:

    Colloidal nanocrystals and method of making
    patent, October 2015