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.

Date of Patent:
Jun. 06, 2023

Filed:

Apr. 26, 2017
Applicant:

Shoei Chemical Inc., Tokyo, JP;

Inventors:

Takafumi Moriyama, Corvallis, OR (US);

Aya Midorikawa, Corvallis, OR (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/72 (2006.01); C09K 11/88 (2006.01); C09K 11/02 (2006.01); B82Y 30/00 (2011.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); G01N 23/201 (2018.01);
U.S. Cl.
CPC ...
C09K 11/883 (2013.01); C09K 11/025 (2013.01); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); G01N 23/201 (2013.01);
Abstract

An object of the present invention is to provide a core/shell type quantum dot material capable of increasing the photoluminescence quantum yield and a method of manufacturing the same. The quantum dot material according to one embodiment of the present invention is a quantum dot material comprising a plurality of nanoscopic core-shell structures, each nanoscopic core-shell structure including a nanocrystalline core including phosphorus and indium, a shell disposed on the nanocrystalline core, and a modifier comprising at least one of chlorine and bromine, wherein the content of chlorine and/or bromine is within a range of 2 to 15 mass % of the quantum dot material.


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