Title:
LUMINESCENT PARTICLES AND PRODUCTION METHOD THEREFOR, LUMINESCENT-PARTICLE DISPERSION, PHOTOCONVERSION FILM, LAYERED PRODUCT, PHOTOCONVERSION LAYER, COLOR FILTER, AND LUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/107600
Kind Code:
A1
Abstract:
Provided is a method for producing luminescent particles which are excellent in terms of dispersibility and stability and include semiconductor nanocrystal particles comprising a metal halide. This method is for producing luminescent particles comprising semiconductor nanocrystal particles comprising a metal halide and an Si-containing surface layer provided to the surface of the nanocrystal particles, and comprises: a step in which the semiconductor nanocrystal particles and polysiloxane bonds are formed from a solution comprising a starting material for the semiconductor nanocrystal particles, silane compound A having a bonding group and a hydrolyzable silyl group, and a solvent, thereby obtaining precursor particles; a step in which the precursor particles, polymer B including a structural unit having a basic group and a solvent-philic structural unit, and a solvent are mixed to obtain a mixture; and a step in which silane compound C having a hydrolyzable silyl group is added to the mixture to obtain luminescent particles comprising the precursor particles and, provided to the surface thereof, a layer comprising both the polymer B and a polymer of the silane compound C.
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Inventors:
NONAKA YUKI (JP)
HAYASHI TAKUO (JP)
HORIGUCHI MASAHIRO (JP)
HAYASHI TAKUO (JP)
HORIGUCHI MASAHIRO (JP)
Application Number:
PCT/JP2021/040512
Publication Date:
May 27, 2022
Filing Date:
November 04, 2021
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C09K11/08; C09K11/66; G02B5/20
Domestic Patent References:
| WO2020085513A1 | 2020-04-30 | |||
| WO2020085362A1 | 2020-04-30 | |||
| WO2020235480A1 | 2020-11-26 | |||
| WO2020235420A1 | 2020-11-26 |
Foreign References:
| CN109021283A | 2018-12-18 | |||
| CN108165259A | 2018-06-15 | |||
| CN109266343A | 2019-01-25 | |||
| JP2021091870A | 2021-06-17 | |||
| JP2021102679A | 2021-07-15 | |||
| JP2017222851A | 2017-12-21 |
Other References:
HUANG SHUYI, GUO MANLI, TAN JIEAN, GENG YUANYUAN, WU JINYI, TANG YOUWEN, SU CHAOCHIN, LIN CHUN CHE, LIANG YONG: "Novel Fluorescence Sensor Based on All-Inorganic Perovskite Quantum Dots Coated with Molecularly Imprinted Polymers for Highly Selective and Sensitive Detection of Omethoate", APPLIED MATERIALS & INTERFACES, vol. 10, no. 45, 14 November 2018 (2018-11-14), US , pages 39056 - 39063, XP055931717, ISSN: 1944-8244, DOI: 10.1021/acsami.8b14472
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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