Title:
SEMICONDUCTOR-NANOPARTICLE AGGREGATE, SEMICONDUCTOR-NANOPARTICLE-AGGREGATE DISPERSION, SEMICONDUCTOR-NANOPARTICLE-AGGREGATE COMPOSITION, AND SEMICONDUCTOR-NANOPARTICLE-AGGREGATE CURED FILM
Document Type and Number:
WIPO Patent Application WO/2021/124935
Kind Code:
A1
Abstract:
Provided is a semiconductor-nanoparticle aggregate that is an aggregation of core/shell-type semiconductor nanoparticles, each of which has a core containing In and P and a shell having one or more layers, the semiconductor-nanoparticle aggregate being characterized in that: the peak wavelength (λ1
MAX) of the emission spectrum (λ1) of the semiconductor-nanoparticle aggregate is in the range 515-535 nm; the half width (FWHM1) is equal to or less than 43 nm; and, for each particle of the semiconductor nanoparticles, (1) the average value of the half width (FWHM2) of the emission spectrum (λ2) is equal to or greater than 15 nm, (2) the standard deviation (SD1) of the peak wavelength (λ2
MAX) of the emission spectrum (λ2) is equal to or less than 12 nm, and (3) the standard deviation (SD2) of the half width (FWHM2) of the emission spectrum (λ2) is equal to or greater than 2 nm. According to the present invention, it is possible to provide semiconductor nanoparticles: that are core/shell-type semiconductor nanoparticles, each of which consists of a core containing In and P and a shell having one or more layers; and that have a small half width and a high quantum efficiency.
Inventors:
UMEDA NAOKI (JP)
MORIYAMA TAKAFUMI (JP)
SASAKI HIROKAZU (JP)
MATSUURA KEISUKE (JP)
MORIYAMA TAKAFUMI (JP)
SASAKI HIROKAZU (JP)
MATSUURA KEISUKE (JP)
Application Number:
PCT/JP2020/045283
Publication Date:
June 24, 2021
Filing Date:
December 04, 2020
Export Citation:
Assignee:
SHOEI CHEMICAL IND CO (JP)
International Classes:
C01B25/08; B82Y20/00; C01B25/14; C09K11/08; C09K11/70; C09K11/88; G02B5/20
Domestic Patent References:
| WO2017086362A1 | 2017-05-26 | |||
| WO2019039305A1 | 2019-02-28 |
Foreign References:
| JP2018533658A | 2018-11-15 |
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (JP)
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