Title:
QUANTUM DOT, WAVELENGTH CONVERSION MATERIAL, BACKLIGHT UNIT, IMAGE DISPLAY DEVICE, AND METHOD FOR MANUFACTURING QUANTUM DOT
Document Type and Number:
WIPO Patent Application WO/2021/111777
Kind Code:
A1
Abstract:
The present invention provides a quantum dot comprising a crystalline nanoparticle, wherein the quantum dot has a multilayer structure including core particles and a plurality of layers formed on the core particles and contains Zn, S, Se and Te as constituent elements, and also has at least one quantum well structure as observed in a radial direction from the center of the quantum dot. According to this configuration, a quantum dot comprising a crystalline nanoparticle is provided, which contains no toxic substance such as Cd or Pb, has excellent luminous properties such as full width at half maximum and has high quantum efficiency.
Inventors:
NOJIMA YOSHIHIRO (JP)
AOKI SHINJI (JP)
TOBISHIMA KAZUYA (JP)
AOKI SHINJI (JP)
TOBISHIMA KAZUYA (JP)
Application Number:
PCT/JP2020/040566
Publication Date:
June 10, 2021
Filing Date:
October 29, 2020
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C01B19/00; B82Y20/00; B82Y40/00; C01B19/04; C09K11/08; C09K11/56; C09K11/88; F21S2/00; G02B5/20; F21Y115/10
Domestic Patent References:
| WO2012132236A1 | 2012-10-04 |
Foreign References:
| JP2013539798A | 2013-10-28 | |||
| CN108389982A | 2018-08-10 | |||
| US20140185640A1 | 2014-07-03 |
Other References:
ASANO, HIROSHI , TSUKUDA SATOSHI, KITA MASAO, FUJIMOTO SHINJI, OMATA TAKAHISA: "Colloidal Zn(Te,Se)/ZnS Core/Shell Quantum Dots Exhibiting Narrow-Band and Green Photoluminescence", ACS OMEGA, vol. 3, no. 6, 30 June 2018 (2018-06-30), pages 6703 - 6709, XP055834830, DOI: 10.1021/acsomega.8b00612
Attorney, Agent or Firm:
YOSHIMIYA Mikio et al. (JP)
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