US 11,932,794 B2
Quantum-dot based on graded-shell structure and manufacturing method of the same
Jea Gun Park, Jeonju-si (KR); Seung Jae Lee, Seoul (KR); Ji Eun Lee, Seoul (KR); and Chang Jin Lee, Seoul (KR)
Assigned to INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY, Seoul (KR)
Appl. No. 17/040,879
Filed by INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY, Seoul (KR)
PCT Filed May 22, 2020, PCT No. PCT/KR2020/006683
§ 371(c)(1), (2) Date Sep. 23, 2020,
PCT Pub. No. WO2021/215576, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 10-2020-0049814 (KR), filed on Apr. 24, 2020.
Prior Publication US 2023/0106112 A1, Apr. 6, 2023
Int. Cl. C09K 11/88 (2006.01); B82Y 20/00 (2011.01); C09K 11/02 (2006.01)
CPC C09K 11/881 (2013.01) [B82Y 20/00 (2013.01); C09K 11/02 (2013.01); C09K 11/88 (2013.01); C09K 11/883 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A quantum dot, comprising a core; inter shells surrounding the core; and an outer shell surrounding the inter shells,
wherein concentrations of compounds composing the inter shells are changed stepwise from the core to the outer shell,
wherein the inter shells comprise a first inter shell having a multilayer structure and a second inter shell having a multilayer structure.