The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7998271 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 16, 2011

Filed:

Nov. 19, 2004
Applicants:

Ammar S. Alkhawaldeh, Hillsboro, OR (US);

Matteo Pasquali, Houston, TX (US);

Michael S. Wong, Houston, TX (US);

Inventors:

Ammar S. Alkhawaldeh, Hillsboro, OR (US);

Matteo Pasquali, Houston, TX (US);

Michael S. Wong, Houston, TX (US);

Assignee:

William Marsh Rice Universtiy, Houston, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C30B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

New methods for the synthesis of nanocrystals/quantum dots are disclosed. The methods comprise use of reasonably-priced and commercially available heat transfer fluids (such as Dowtherm® A) as solvents to synthesize CdSe nanocrystals. Separation of nucleation and growth is achieved by quenching the reaction solution with relatively cold (room temperature) solvent to lower the solution temperature. Quenching may be followed by raising the solution temperature, to allow controlled growth to take place.


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