公开(公告)号：US20230143531A1

公开(公告)日：2023-05-11

申请号：US17980758

申请日：2022-11-04

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Kyoungwon PARK ,  Chuljong HAN ,  Jeongmin YI

IPC: H01L31/055 ,  C09K11/02 ,  C08F220/18

CPC classification number: H01L31/055 ,  C09K11/02 ,  C08F220/1811 ,  H01L31/042

Abstract: A light concentrator based on a quantum dot may include a resin film layer in which quantum dots are dispersed, an upper layer in contact with an upper surface of the resin film layer, and a lower layer in contact with a lower surface of the resin film layer. Each of the upper layer and the lower layer may be selected from a glass layer or a polymer layer. A photovoltaic module may include the quantum dot-based light concentrator. By optimally adjusting the longest wavelength of the quantum dots, the average transmittance of the glass layer, the material of the polymer layer, and the cross-sectional aspect ratio (length/thickness) of the light concentrator, it is possible to maximize the efficiency of the quantum dot-based light concentrator and increase the efficiency of the photovoltaic module including the light concentrator.

公开(公告)号：US20190136130A1

公开(公告)日：2019-05-09

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: C09K11/70 ,  C09K11/62 ,  C09K11/02 ,  H01L31/0352

CPC classification number: C09K11/70 ,  B82Y5/00 ,  B82Y15/00 ,  C09K11/025 ,  C09K11/56 ,  C09K11/623 ,  H01L31/035218

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.