公开(公告)号：US20240224564A1

公开(公告)日：2024-07-04

申请号：US18512352

申请日：2023-11-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Won Sik YOON ,  Ju Hyun KIM ,  Ha Il KWON ,  Kwang Hee KIM ,  Taehyung KIM ,  Su Jin PARK ,  Dae Young CHUNG

IPC: H10K50/115 ,  H10K50/15 ,  H10K50/16

CPC classification number: H10K50/115 ,  H10K50/156 ,  H10K50/16

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.