Title:
QUANTUM DOT PRODUCTION METHOD AND QUANTUM DOTS
Document Type and Number:
WIPO Patent Application WO/2022/138905
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a quantum dot production method that makes it possible to include a large amount of Zn on the surface of quantum dots; and quantum dots. This quantum dot production method is characterized by including at least a step in which a core containing either Ag, Sa, and S or Ag, Ga, and Se is generated and a step in which the surface of the core is coated with a shell. The quantum dot production method is also characterized in that Zn is added after coating the surface of the core with GaS in the step for coating with the shell. Coating with ZnS is preferably performed after coating with GaS. The core and the shell preferably do not contain Cd and In.
Inventors:
MISHIMA AKIO (JP)
NIKATA SOICHIRO (JP)
KALOUSEK VIT (JP)
SHIMASAKI TOSHIAKI (JP)
OGURA YUKO (JP)
TAKASAKI MIKIHIRO (JP)
UEDA SHOGO (JP)
ASHIMURA YUYA (JP)
NIKATA SOICHIRO (JP)
KALOUSEK VIT (JP)
SHIMASAKI TOSHIAKI (JP)
OGURA YUKO (JP)
TAKASAKI MIKIHIRO (JP)
UEDA SHOGO (JP)
ASHIMURA YUYA (JP)
Application Number:
PCT/JP2021/048136
Publication Date:
June 30, 2022
Filing Date:
December 24, 2021
Export Citation:
Assignee:
NS MAT INC (JP)
International Classes:
C09K11/08; B82Y20/00; B82Y40/00; C09K11/56; C09K11/62; C09K11/88; H01L33/50
Domestic Patent References:
| WO2018159699A1 | 2018-09-07 |
Foreign References:
| JP2017501571A | 2017-01-12 | |||
| JP2020041124A | 2020-03-19 | |||
| JP2014002980A | 2014-01-09 | |||
| JP2017025201A | 2017-02-02 | |||
| JP2018039971A | 2018-03-15 | |||
| JP2018044142A | 2018-03-22 | |||
| JP2018141141A | 2018-09-13 | |||
| JP2020217158A | ||||
| JP2021053070A | 2021-04-08 |
Other References:
TIANYU BAI, XUEMIN WANG, YANYU DONG, SHANGHUA XING, ZHAN SHI, SHOUHUA FENG: "One-Pot Synthesis of High-Quality AgGaS 2 /ZnS-based Photoluminescent Nanocrystals with Widely Tunable Band Gap", INORGANIC CHEMISTRY, AMERICAN CHEMICAL SOCIETY, EASTON , US, vol. 59, no. 9, 4 May 2020 (2020-05-04), Easton , US , pages 5975 - 5982, XP055729507, ISSN: 0020-1669, DOI: 10.1021/acs.inorgchem.9b03768
NPG ASIA MATERIALS, vol. 10, 2018, pages 713 - 726
ACS PUBLICATIONS, vol. 9, 4 October 2018 (2018-10-04), pages 41844 - 41855
ACS PUBLICATIONS NANO MATER., vol. 3, 2020, pages 3275 - 3287
NPG ASIA MATERIALS, vol. 10, 2018, pages 713 - 726
ACS PUBLICATIONS, vol. 9, 4 October 2018 (2018-10-04), pages 41844 - 41855
ACS PUBLICATIONS NANO MATER., vol. 3, 2020, pages 3275 - 3287
Attorney, Agent or Firm:
AOKI Hiroyoshi et al. (JP)
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