Title:
NANOCRYSTALLINE COMPOSITION, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/206873
Kind Code:
A1
Abstract:
The present disclosure provides a nanocrystalline composition, a preparation method therefor and an application thereof. The preparation method comprises: step S1, preparing a hot melt adhesive comprising a metal salt, the hot melt adhesive being a metal salt, or the hot melt adhesive comprises a metal salt and an organic dispersion; step S2, mixing a plurality of nanocrystals with the hot melt adhesive at a melting temperature of the hot melt adhesive to form a metal salt-nanocrystalline dispersion system; and step S3, cooling the metal salt-nanocrystalline dispersion system to obtain a solid nanocrystalline composition. According to the preparation method, a large amount of metal salt is wrapped on the surface of the nanocrystalline, at least part of the metal salt can be combined with the surface of the nanocrystalline in a chemical bond form, and due to the presence of the hot melt adhesive, the nanocrystalline composition is present in a solid form at normal temperature, such that the falling of the metal salt bound on the surface of the nanocrystalline is effectively avoided, the water-oxygen resistance and anti-photolysis performances of the nanocrystalline are greatly improved, and the high fluorescence quantum yield is maintained.
Inventors:
ZHOU JIANHAI (CN)
CAI XIANGZHOU (CN)
LIN QIZHONG (CN)
CAI XIANGZHOU (CN)
LIN QIZHONG (CN)
Application Number:
PCT/CN2022/084259
Publication Date:
October 06, 2022
Filing Date:
March 31, 2022
Export Citation:
Assignee:
NAJING TECH CORP LTD (CN)
International Classes:
C09K11/02; C09K11/56; C09K11/70; C09K11/88; H01L51/50
Domestic Patent References:
| WO2017034228A1 | 2017-03-02 |
Foreign References:
| CN109233801A | 2019-01-18 | |||
| CN109468134A | 2019-03-15 | |||
| CN108807608A | 2018-11-13 | |||
| US20150299567A1 | 2015-10-22 | |||
| CN109337689A | 2019-02-15 | |||
| CN113801654A | 2021-12-17 | |||
| CN110846025A | 2020-02-28 | |||
| CN105940081A | 2016-09-14 | |||
| CN108893103A | 2018-11-27 | |||
| US20180318784A1 | 2018-11-08 | |||
| CN110003884A | 2019-07-12 | |||
| CN107236536A | 2017-10-10 | |||
| CN108913142A | 2018-11-30 | |||
| JP2018154666A | 2018-10-04 | |||
| CN108203582A | 2018-06-26 | |||
| CN105670631A | 2016-06-15 | |||
| CN107686725A | 2018-02-13 |
Other References:
KARATUM ONURALP, JALALI HOUMAN BAHMANI, SADEGHI SADRA, MELIKOV RUSTAMZHON, SRIVASTAVA SHASHI BHUSHAN, NIZAMOGLU SEDAT: "Light-Emitting Devices Based on Type-II InP/ZnO Quantum Dots", ACS PHOTONICS, vol. 6, no. 4, 17 April 2019 (2019-04-17), pages 939 - 946, XP055972102, ISSN: 2330-4022, DOI: 10.1021/acsphotonics.8b01618
Download PDF: