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.:
Date of Patent:
Mar. 26, 2024
Filed:
Dec. 06, 2021
Applicant:
Qustomdot B.v., Ghent-Zwijnaarde, BE;
Inventors:
Assignee:
QustomDot B.V., Ghent-Zwijnaarde, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/62 (2006.01); B82Y 20/00 (2011.01); C09K 11/02 (2006.01); C09K 11/70 (2006.01); C09K 11/74 (2006.01); C09K 11/88 (2006.01); F21V 9/30 (2018.01);
U.S. Cl.
CPC ...
C09K 11/623 (2013.01); C09K 11/02 (2013.01); C09K 11/70 (2013.01); C09K 11/7492 (2013.01); C09K 11/883 (2013.01); F21V 9/30 (2018.02); B82Y 20/00 (2013.01);
Abstract
The present disclosure relates to quantum dots with a core of III-V material, a first layer of II-VI material and an external shell of II-VI material to be used, for example, in downconverters. The external shell is preferably made of an alloy of Zn and Cd with Se or S. Introducing a small amount of Cd in the external shell provides excellent absorbance performance in blue, violet and UV wavelengths. The amount of Cd needed for this increase in absorbance can be very low. Further, the emitted light can be nearly monochromatic, which is especially interesting in electronic applications.