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:
Feb. 11, 2025
Filed:
Nov. 17, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
Won Sik Yoon, Suwon-si, KR;
Ju Hyun Kim, Suwon-si, KR;
Ha Il Kwon, Suwon-si, KR;
Kwang Hee Kim, Suwon-si, KR;
Taehyung Kim, Suwon-si, KR;
Su Jin Park, Suwon-si, KR;
Dae Young Chung, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do, KR;
Abstract
A quantum dot device including an anode and a cathode, a light emitting layer disposed between the anode and the cathode, the light emitting layer comprising quantum dots, a first hole auxiliary layer disposed on the anode, the first hole auxiliary layer including poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate or a derivative thereof (PEDOT:PSS), a second hole auxiliary layer disposed on the first hole auxiliary layer and including a hole transport material different from the PEDOT:PSS, wherein the light emitting layer is disposed on the second hole auxiliary layer, wherein the first hole auxiliary layer has a first surface facing the anode and a second surface facing the second hole auxiliary layer, and the second surface includes a surface modification region including a surface modification material having a carboxylic acid group, a phosphonic acid group, a sulfonic acid group, or a salt thereof. An electronic device that includes the quantum dot device.