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):
- 8784703
- Application Number:
- 13/275,595
- Assignee:
- Eastman Kodak Company (Rochester, NY)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
- 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}
}