公开(公告)号：US11964877B2

公开(公告)日：2024-04-23

申请号：US17373964

申请日：2021-07-13

Applicant: POSTECH Research and Business Development Foundation

Inventor： Yongyoung Noh ,  Youngki Kim ,  Jisu Hong ,  Hyein Kim

IPC: C01D17/00 ,  B01F23/40 ,  B01F23/451 ,  B01F25/31 ,  B01F25/00 ,  B82Y40/00

CPC classification number: C01D17/003 ,  B01F23/451 ,  B01F23/49 ,  B01F25/31 ,  B01F23/48 ,  B01F2025/93 ,  B82Y40/00 ,  C01P2002/34 ,  C01P2004/03 ,  C01P2004/64 ,  C01P2006/60

Abstract: Disclosed is a method for preparing a perovskite nanoparticle using a fluidic channel including a first step of forming a fluidic channel including a first outer tube, a second outer tube, and a storage tube capable of introducing flows of fluids, a second step of inducing formation of the perovskite nanoparticles by continuously preparing a mixed fluid with a laminar flow based on a flow rate by introducing a flow of a base fluid into the first outer tube, and introducing a flow of a dispersion fluid in the same direction as the flow of the base fluid into the second outer tube, and a third step of separating the perovskite nanoparticles from the mixed fluid stored in the storage tube.

公开(公告)号：US12037257B2

公开(公告)日：2024-07-16

申请号：US17420769

申请日：2020-12-09

Applicant: POSTECH Research and Business Development Foundation

Inventor： Yongyoung Noh ,  Youngki Kim ,  Jisu Hong

IPC: C01G19/00 ,  B82Y40/00 ,  C01G21/00 ,  C01G29/00 ,  C01G30/00 ,  C01G45/00 ,  C09K11/57 ,  C09K11/66 ,  C09K11/74 ,  C09K11/75 ,  C30B7/14

CPC classification number: C01G19/006 ,  B82Y40/00 ,  C01G21/006 ,  C01G29/006 ,  C01G30/002 ,  C01G45/006 ,  C09K11/57 ,  C09K11/664 ,  C09K11/665 ,  C09K11/7428 ,  C09K11/7435 ,  C09K11/755 ,  C09K11/756 ,  C30B7/14

Abstract: A method of producing perovskite nanocrystalline particles using a liquid crystal includes a first operation for preparing a mixed solution including a first precursor compound, a second precursor compound, and a first solvent. a second operation for preparing a precursor solution by adding an organic ligand to the prepared mixed solution, a third operation for performing crystallization treatment after adding the prepared precursor solution to a reactor containing a liquid crystal, and a fourth operation for separating the perovskite nanocrystalline particles from the crystallized solution through a centrifugal separator.