公开(公告)号：US20250075124A1

公开(公告)日：2025-03-06

申请号：US18796960

申请日：2024-08-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho JO ,  SANGYEOP LEE ,  SOOHO LEE ,  YUNKU JUNG ,  Chang Yeol HAN

IPC: C09K11/66 ,  B82Y30/00 ,  C09D11/38 ,  C09K11/02 ,  H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K102/00

Abstract: A light-emitting element includes a first electrode, a functional layer disposed on the first electrode, and a second electrode disposed on the functional layer, wherein the functional layer includes a nanoparticle, the nanoparticle includes a core and a ligand, the core includes at least one of a first core compound represented by Formula 1 below, a second core compound represented by Formula 2 below, or a third core compound represented by Formula 3 below, and thus the light-emitting element has improved lifespan and efficiency. Sn4+1-xSn2+xO2-x  Formula 1 Sn4+1-yCu+2yO2-y  Formula 2 Sn4+1-zNi2+zO2-z  Formula 3