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Perovskite nanocrystalline ink and application thereof

A perovskite and nanocrystal technology, applied in applications, inks, household appliances, etc., can solve the problems of high polymer viscosity, unfavorable inkjet printing, low saturation concentration, etc., achieve high saturation concentration, and not easy to spray holes Clogging and uniform film formation

Pending Publication Date: 2021-10-01
ZHIJING NANOTECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the perovskite nanocrystal ink methods that have been reported so far are to prepare perovskite nanocrystals first, and then formulate them into solutions. Low
Another method is to add high molecular polymers to the perovskite precursor solution, and use the limitations of high molecular polymers to realize the preparation of nanocrystals, but the high viscosity of high molecular polymers is often not conducive to inkjet printing.
Therefore, existing quantum dot inks still need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] 90wt% triethyl phosphate, 3wt% PbBr 2 ,2wt% of HN=CHNH 3 Cl, 0.06wt% oleylamine, 0.139wt% oleic acid, 1wt% bis(2,4,6-trimethylbenzoyl) phenylphosphine oxide, 3wt% diethylene glycol diacrylate, stirred for 2 hours , to obtain perovskite nanocrystalline ink (total mass is 10g), the measured viscosity is 2.1cps, and the surface tension is 33dyne / cm.

Embodiment 2

[0090] 30wt% N,N-dimethylformamide (DMF), 30wt% dimethylsulfoxide (DMSO), 4wt% PbBr 2 , 4wt% CH(NH)NH 2 Br, 0.05wt% oleylamine, 0.05wt% oleic acid, 1wt% (2,4,6-trimethylbenzoyl) diphenylphosphine oxide, 2wt% 2-methyl methacrylate, 26wt% Isobornyl acrylate, 2wt% silicon dioxide particle light diffusing agent, stirred for 2 hours to obtain a perovskite nanocrystalline ink (total mass 10g), the measured viscosity was 4.2cps, and the surface tension was 34dyne / cm.

Embodiment 3

[0092] 40wt% DMSO, 10wt% PbI, 5wt% CsI 2 , 5wt% CsBr, 0.5wt% didodecyldimethylammonium bromide, 1.5wt% 1-hydroxy-cyclohexyl-phenyl ketone, 35wt% ethoxyethoxyethyl acrylate, 3wt% polystyrene particle light diffusing agent, stirred for 2 hours to obtain perovskite nanocrystalline ink (total mass 10g), the measured viscosity was 4.6cps, and the surface tension was 28dyne / cm.

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Abstract

The invention discloses a perovskite nanocrystalline ink and application thereof. The perovskite nanocrystalline ink comprises a perovskite precursor, a compound A and an initiator; the compound A is selected from at least one of oligomer and monomer; and the initiator is selected from at least one of a photoinitiator and a thermal initiator. The perovskite nanocrystalline ink provided by the invention can meet various requirements of ink-jet printing on ink, and a perovskite nanocrystalline composite film printed by using the ink has excellent optical properties and stability.

Description

technical field [0001] The application relates to a perovskite nanocrystal ink and its application, belonging to the technical fields of optical materials and inkjet printing. Background technique [0002] Perovskite nanocrystals have excellent luminescent properties and can be used in lighting, display, light filtering and other fields. Inkjet printing is considered to be an important way of display integration of perovskite nanocrystals, which requires the preparation of suitable printing inks. [0003] Most of the perovskite nanocrystal ink methods that have been reported so far are to prepare perovskite nanocrystals first, and then formulate them into solutions. Low. Another method is to add a polymer to the perovskite precursor solution, and use the limitation of the polymer to realize the preparation of nanocrystals, but the high viscosity of the polymer is often not conducive to inkjet printing. Therefore, existing quantum dot inks still need to be improved. Conte...

Claims

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Application Information

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IPC IPC(8): C09D11/30C09D11/101C09D11/38G09F9/33
CPCC09D11/30C09D11/101C09D11/38G09F9/33
Inventor 施立甫钟海政孟令海柏泽龙王晶晶
Owner ZHIJING NANOTECH CO LTD
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