Title:
METHOD FOR PRODUCING COLLOIDAL PARTICLES, AND COLLOIDAL PARTICLES
Document Type and Number:
WIPO Patent Application WO/2022/191178
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent the decrease in quantum yield. A method for producing colloidal particles comprises: an InAs colloidal particle preparation step (S10) for preparing InAs colloidal particles; and a colloidal particle production step (S16) for supplying a raw material containing Cd and Se to the InAs colloidal particles to produce colloidal particles in which the surface of each of the InAs colloidal particles is coated with a CdSe shell. In the colloidal particle production step (S16), when it is assumed that all of Cd and Se contained in the supplied raw material are used for the formation of the CdSe shell, the raw material is supplied in such a raw material supply amount that the thickness of the CdSe shell becomes 2.1 to 4.2 nm inclusive.
Inventors:
IKUTA DAIGO (JP)
HIGAMI AKIHIRO (JP)
HIGAMI AKIHIRO (JP)
Application Number:
PCT/JP2022/009977
Publication Date:
September 15, 2022
Filing Date:
March 08, 2022
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
C01G28/00; B22F9/00; B22F9/24; B82Y20/00; B82Y40/00; C01B19/04; H01L31/0352
Foreign References:
| JP2020180278A | 2020-11-05 | |||
| JP2010532409A | 2010-10-07 | |||
| JP2008279591A | 2008-11-20 | |||
| JP2017160078A | 2017-09-14 |
Other References:
CAO Y W, BANIN U: "GROWTH AND PROPERTIES OF SEMICONDUCTOR CORE/SHELL NANOCRYSTALS WITH INAS CORES", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMERICAN CHEMICAL SOCIETY, vol. 122, 1 January 2000 (2000-01-01), pages 9692 - 9702, XP002237382, ISSN: 0002-7863, DOI: 10.1021/ja001386g
ASSAF AHARONI; TALEB MOKARI; INNA POPOV; URI BANIN: "Synthesis of InAs/CdSe/ZnSe Core/Shell1/Shell2 Structures with Bright and Stable Near-Infrared Fluorescence", ARXIV.ORG, CORNELL UNIVERSITY LIBRARY, 201 OLIN LIBRARY CORNELL UNIVERSITY ITHACA, NY 14853, 23 May 2021 (2021-05-23), 201 Olin Library Cornell University Ithaca, NY 14853 , XP081968400, DOI: 10.1021/ja056326v
ASSAF AHARONI; TALEB MOKARI; INNA POPOV; URI BANIN: "Synthesis of InAs/CdSe/ZnSe Core/Shell1/Shell2 Structures with Bright and Stable Near-Infrared Fluorescence", ARXIV.ORG, CORNELL UNIVERSITY LIBRARY, 201 OLIN LIBRARY CORNELL UNIVERSITY ITHACA, NY 14853, 23 May 2021 (2021-05-23), 201 Olin Library Cornell University Ithaca, NY 14853 , XP081968400, DOI: 10.1021/ja056326v
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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