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:
Aug. 15, 2023

Filed:

Dec. 09, 2021
Applicant:

Samsung Display Co., Ltd., Yongin-si, KR;

Inventors:

Junehyuk Jung, Yongin-si, KR;

Seungwon Park, Yongin-si, KR;

Junghoon Song, Yongin-si, KR;

Baekhee Lee, Yongin-si, KR;

Junwoo Lee, Yongin-si, KR;

Jaebok Chang, Yongin-si, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/88 (2006.01); C09K 11/08 (2006.01); C09K 11/75 (2006.01); C09K 11/74 (2006.01); B82Y 40/00 (2011.01); B82Y 20/00 (2011.01);
U.S. Cl.
CPC ...
C09K 11/883 (2013.01); C09K 11/0883 (2013.01); C09K 11/7492 (2013.01); C09K 11/75 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01);
Abstract

A quantum dot, a method of preparing the quantum dot, and an optical member and an electronic device, each including the quantum dot, are provided. The quantum dot includes: a core including a Group III-V semiconductor compound alloyed with gallium (Ga); a first shell surrounding the core; and a second shell surrounding the first shell, wherein the first shell includes a first compound that includes a Group II-VI semiconductor compound, a Group III-V semiconductor compound, or a Group III-VI semiconductor compound, the second shell includes a second compound that includes a Group II-VI semiconductor compound, a Group III-V semiconductor compound, or a Group III-VI semiconductor compound, the first compound and the second compound are different from each other, and the atomic percentages of specific elements in a material of the core, elemental ratios in the first shell and second shell with respect to the core satisfy certain ranges.


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