Phthalocyanine nanosphere, preparation method thereof, and color filter
US11352364B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Sep 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/223
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparing phthalocyanine nanospheres is provided, including: synthesizing an ionic phthalocyanine molecule of formula I according to a following chemical scheme: wherein M is Cu or Zn, X is Br or Cl, R1, R2, R3, and R4 are aromatic substituent groups; dissolving at least one ionic phthalocyanine molecule selected from the formula I in a solvent to form a solution; preparing a two-dimensional layer crystalline material with an opposite charge to the ionic phthalocyanine molecule; adding the two-dimensional layer crystalline material to the solution; heating the solution to evaporate a portion of the solvent to aggregate the ionic phthalocyanine molecule into phthalocyanine nanospheres between a film layer of the two-dimensional layer crystalline material; and separating the phthalocyanine nanospheres from the film layer of the two-dimensional layer crystalline material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.