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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 11793011 B1

PDFFull Text
Date of Patent:
Oct. 17, 2023

Filed:

Jul. 28, 2021

Quantum dot device and display device

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Sung Woo Kim, Hwaseong-si, KR;

Tae Ho Kim, Suwon-si, KR;

Eun Joo Jang, Suwon-si, KR;

Hongkyu Seo, Anyang-si, KR;

Sang Jin Lee, Seoul, KR;

Dae Young Chung, Suwon-si, KR;

Oul Cho, Suwon-si, KR;

Assignee:

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

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Matthew C Landau

Assistant Examiner:

Mark Hatzilambrou

Int. Cl.
CPC ...
H10K 50/115 (2023.01); H10K 50/11 (2023.01); H10K 50/81 (2023.01); H10K 50/82 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01); H10K 101/40 (2023.01); H10K 101/30 (2023.01); H10K 71/00 (2023.01); H10K 50/15 (2023.01); H10K 71/12 (2023.01); H10K 85/10 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/115 (2023.02); H10K 50/11 (2023.02); H10K 50/171 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02); H10K 71/00 (2023.02); H10K 50/15 (2023.02); H10K 50/17 (2023.02); H10K 50/18 (2023.02); H10K 71/12 (2023.02); H10K 85/115 (2023.02); H10K 85/1135 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02); H10K 2102/00 (2023.02); H10K 2102/331 (2023.02); H10K 2102/351 (2023.02); H10K 2102/361 (2023.02);
Abstract

A quantum dot device includes: a first electrode and a second electrode facing each other; a quantum dot layer between the first electrode and the second electrode, and an electron auxiliary layer between the quantum dot layer and the second electrode, the electron auxiliary layer including a first nanoparticle and a second nanoparticle which is larger than the first nanoparticle, wherein a work function of the first electrode is greater than a work function of the second electrode, and wherein a difference between a lowest unoccupied molecular orbital energy level of the quantum dot layer and a lowest unoccupied molecular orbital energy level of the electron auxiliary layer is less than about 1.1 electronvolts.

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