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:
Apr. 16, 2024

Filed:

Feb. 13, 2023
Applicant:

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

Inventors:

Nayoun Won, Suwon-si, KR;

Garam Park, Seoul, KR;

Shin Ae Jun, Seongnam-si, KR;

Tae Gon Kim, Hwaseong-si, KR;

Taekhoon Kim, Hwaseong-si, KR;

Shang Hyeun Park, Yongin-si, KR;

Mi Hye Lim, Suwon-si, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/88 (2006.01); C09D 4/06 (2006.01); C09D 5/22 (2006.01); C09D 7/45 (2018.01); C09D 7/65 (2018.01); C09D 135/02 (2006.01); C09K 11/02 (2006.01); C09K 11/08 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); H10K 50/115 (2023.01); H10K 59/38 (2023.01);
U.S. Cl.
CPC ...
C09K 11/883 (2013.01); C09D 4/06 (2013.01); C09D 5/22 (2013.01); C09D 7/45 (2018.01); C09D 7/65 (2018.01); C09D 135/02 (2013.01); C09K 11/02 (2013.01); C09K 11/0883 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); H10K 50/115 (2023.02); H10K 59/38 (2023.02);
Abstract

A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.


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