US 12,435,271 B2
Quantum dot light-emitting device and manufacturing method therefor, and display panel
Gang Yu, Beijing (CN); and Tieshi Wang, Beijing (CN)
Assigned to Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/777,405
Filed by Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jan. 13, 2021, PCT No. PCT/CN2021/071556
§ 371(c)(1), (2) Date May 17, 2022,
PCT Pub. No. WO2021/147739, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 202010065999.3 (CN), filed on Jan. 20, 2020.
Prior Publication US 2022/0399515 A1, Dec. 15, 2022
Int. Cl. C09K 11/54 (2006.01); H10K 50/115 (2023.01); H10K 50/16 (2023.01); H10K 71/40 (2023.01); H10K 85/00 (2023.01)
CPC C09K 11/54 (2013.01) [H10K 50/115 (2023.02); H10K 50/16 (2023.02); H10K 85/00 (2023.02); H10K 71/40 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A quantum dot light-emitting device, comprising:
an electron transport layer, wherein a material of the electron transport layer comprises a host material and a first group connected with the host material, and the first group is a hydrophilic group; and
a quantum dot layer, wherein the quantum dot layer and the electron transport layer are laminated in film layers and adjacent to each other, a material of the quantum dot layer comprises a quantum dot material and a second group connected with the quantum dot material, the second group is a hydrophilic group, and the first group and the second group are bonded by means of a hydrogen bond on a contact surface of the quantum dot layer and the electron transport layer;
wherein the host material comprises zinc oxide nanoparticles, and the first group comprises a short-chain alcohol amine.