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.

公开(公告)号：US11089678B2

公开(公告)日：2021-08-10

申请号：US16263450

申请日：2019-01-31

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Chuljong Han ,  Minsuk Oh ,  Eunji Ko ,  Hongseon Park

IPC: B32B3/00 ,  H05K1/05 ,  H05K3/46 ,  H05K3/28 ,  H05K1/02 ,  C03C17/40

Abstract: The present disclosure provides a composite conductive substrate exhibiting enhanced properties both in the folding endurance and the electric conductivity and a method of manufacturing the composite conductive substrate. A composite conductive substrate according to an exemplary embodiment of the present disclosure includes: an insulating layer; a metal nanowire structure embedded beneath one surface of the insulating layer; and a metal thin film coupled to the metal nanowire structure. The composite conductive substrate may be fabricated in an order of the insulating film, the metal nanowire structure, and the metal thin film, or vice versa.

公开(公告)号：US10371828B2

公开(公告)日：2019-08-06

申请号：US15992060

申请日：2018-05-29

Applicant: Korea Electronics Technology Institute

Inventor： Chuljong Han ,  Jeongno Lee ,  Minsuk Oh ,  Byungwook Yoo

IPC: G01T1/20 ,  G21K4/00 ,  A61B6/00 ,  G01T1/24 ,  G01T1/16

Abstract: Disclosed are a scintillator using semiconductor quantum dots, a method of manufacturing the scintillator, and a digital image diagnostic system employing the scintillator. In one aspect, the scintillator includes a metallic reflection film made of a metal configured to transmit an X-ray and reflecting visible light and having a plurality of voids formed in a thickness direction. The scintillator also includes a polymer film formed inside the plurality of voids and being configured to include a plurality of columnar structures to convert the X-ray into the visible light. The scintillator further includes semiconductor quantum dots dispersed in the polymer film and having a decay time of tens of nanoseconds.