公开(公告)号：US10822543B2

公开(公告)日：2020-11-03

申请号：US16182885

申请日：2018-11-07

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Chuljong Han ,  Byungwook Yoo ,  Jiyong Kim ,  Jeongmin Yi

IPC: H01B1/06 ,  C09K11/00 ,  C09K11/70 ,  C09K11/62 ,  H01L31/0352 ,  B82Y5/00 ,  B82Y15/00 ,  C09K11/56 ,  C09K11/02

Abstract: The present disclosure provides a quantum dot having a core-shell structure. To have superior quantum efficiency and optical stability, the quantum dot is of a five element system of Zn—Cu—In—P—S. The quantum dot includes a core formed of In(Zn)P material and doped with copper. The quantum dot further comprises a first shell formed of Cu—Zn—In—S material and surrounding the core and a second shell formed ZnS material and surrounding the first shell.