公开(公告)号：US10978657B2

公开(公告)日：2021-04-13

申请号：US16549430

申请日：2019-08-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin A Kim ,  Yuho Won ,  Sung Woo Kim ,  Tae Hyung Kim ,  Jeong Hee Lee ,  Eun Joo Jang

IPC: H01L51/50

Abstract: Quantum dots and electroluminescent devices including the same, wherein the quantum dots include a core including a first semiconductor nanocrystal including a zinc chalcogenide; and a shell disposed on the core, the shell including zinc, sulfur, and selenium, wherein the quantum dots have an average particle size of greater than 10 nm, wherein the quantum dots do not include cadmium, and wherein a photoluminescent peak of the quantum dots is present in a wavelength range of greater than or equal to about 430 nm and less than or equal to about 470 nm.