公开(公告)号：US20180252864A1

公开(公告)日：2018-09-06

申请号：US15650372

申请日：2017-07-14

Applicant: HONGIK UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATION

Inventor： Hee-Sun YANG ,  Jong-Hoon KIM ,  Bu-Yong KIM

IPC: G02B6/02 ,  G02F1/017 ,  C09K11/58 ,  C09K11/88 ,  G02F1/25

CPC classification number: G02B6/0229 ,  C09K11/584 ,  C09K11/88 ,  G02F1/017 ,  G02F1/25 ,  G02F2001/01791 ,  G02F2202/107 ,  Y02B20/181

Abstract: There are provided green-emitting quantum dots (QDs) including I-III-VI type ternary Cu—Ga—S core QDs and ZnS multishell wherein Cu:Ga is 1:10 to 1:1, and a fabricating method thereof. Integration of these QDs and red-emitting QDs into a blue LED leads to the fabrication of a white light-emitting device with high color rendering index. There are also provided blue-emitting QDs including I-III-VI type quaternary Zn—Cu—Ga—S or Cu—Ga—Al—S core QDs and ZnS multishell, and a fabricating method thereof. An electrically-driven blue light-emitting device with a QD emitting layer including these QDs interposed between a hole transport layer and an electron transport layer is fabricated.