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Printing ink and electronic device printed by applying printing ink

A technology for printing inks and atoms, applied in the field of electroluminescent devices, can solve problems such as limiting wide application, reducing the charge transport capacity of thin films, etc., to achieve the effect of ensuring performance

Active Publication Date: 2015-11-11
GUANGZHOU CHINARAY OPTOELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The introduction of polymer additives with insulating properties tends to reduce the charge transport capability of the film, which has a negative impact on the optoelectronic performance of the device, limiting its wide application in optoelectronic devices

Method used

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  • Printing ink and electronic device printed by applying printing ink

Examples

Experimental program
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preparation example Construction

[0113] The preferred preparation method of quantum dots is colloidal growth method. In a preferred embodiment, the method for preparing monodisperse quantum dots is selected from hot-inject and / or heating-up. The preparation method is included in the literature NanoRes, 2009, 2, 425-447; Chem. Mater., 2015, 27(7), pp2246-2285. The entire contents of the documents listed above are hereby incorporated by reference.

[0114] In a preferred embodiment, the surface of the quantum dot contains organic ligands. Organic ligands can control the growth process of quantum dots, regulate the appearance of quantum dots and reduce the surface defects of quantum dots to improve the luminous efficiency and stability of quantum dots. The organic ligand can be selected from pyridine, pyrimidine, furan, amine, alkylphosphine, alkylphosphine oxide, alkylphosphonic acid or alkylphosphinic acid, alkylthiol and the like. Examples of specific organic ligands include, but are not limited to, tri-n-...

Embodiment 1

[0143] Embodiment 1: the preparation of blue light quantum dot (CdZnS / ZnS)

[0144] Weigh 0.0512g of S and 2.4mLODE into a 25mL single-necked flask, place in an oil pan and heat to 80°C to dissolve S, set aside, hereinafter referred to as solution 1; weigh 0.1280g of S and measure 5mLOA into 25mL Place in an oil pan and heat to 90°C to dissolve S, and set aside, hereinafter referred to as solution 2; Weigh 0.1028g of CdO and 1.4680g of zinc acetate, measure 5.6mL of OA in a 50mL three-necked flask, and put The three-neck flask was placed in a 150mL heating mantle, the bottle mouths on both sides were plugged with rubber stoppers, a condenser was connected to the top, and then connected to a double-row tube, heated to 150°C, vacuumed for 40min, and then nitrogen gas; ODE was added into the three-necked flask, and when the temperature was raised to 310°C, 1.92mL of solution 1 was quickly poured into the three-necked flask with a syringe, and the timing was 12min; when 12min was ...

Embodiment 2

[0146] Embodiment 2: the preparation of green light quantum dot (CdZnSeS / ZnS)

[0147] Weigh 0.0079g of selenium and 0.1122g of sulfur in a 25mL single-necked flask, measure 2mL of TOP, blow nitrogen, stir, and set aside, hereinafter referred to as solution 1; weigh 0.0128g of CdO and 0.3670g of zinc acetate, and measure Take 2.5mL of OA in a 25mL three-necked flask, stopper both sides of the bottle with rubber stoppers, connect a condenser on the top, and then connect it to a double-row tube, place the three-necked flask in a 50mL heating mantle, vacuum and nitrogen, Heat to 150°C, evacuate for 30 minutes, inject 7.5mL of ODE, then heat to 300°C and quickly inject 1mL of solution 1, and time it for 10 minutes; when 10 minutes is up, immediately stop the reaction, and place the three-neck flask in water to cool.

[0148] Add 5mL of n-hexane into the three-necked flask, then add the mixed solution into multiple 10mL centrifuge tubes, add acetone until a precipitate appears, and...

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Abstract

The invention discloses printing ink containing inorganic nano-materials; the provided printing ink contains at least one inorganic nano-material, especially quantum dots, and at least one aromatic ketone or aromatic ether-based organic solvent. The invention also relates to an electronic device printed by applying the printing ink, especially an electroluminescent device.

Description

technical field [0001] The present invention relates to a printing ink comprising inorganic nanomaterials, said printing ink comprising at least one inorganic nanomaterial, especially quantum dots, and at least one organic solvent based on aromatic ketones or aromatic ethers; the present invention also It further relates to an electronic device, especially an electroluminescent device, printed by using the printing ink. Background technique [0002] Quantum dots are nanometer-sized semiconductor materials with quantum confinement effects. When stimulated by light or electricity, quantum dots will emit fluorescence with specific energy. The color (energy) of fluorescence is determined by the chemical composition and size and shape of quantum dots. Therefore, controlling the size and shape of quantum dots can effectively tune their electrical and optical properties. At present, all countries are researching the application of quantum dots in full color, mainly in the field of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/38C09D11/00C09D11/03C09D11/033
CPCC01B17/20C01B19/007C09D11/322C09D11/36C09D11/52C09K11/883C30B7/14G01N33/533
Inventor 潘君友杨曦
Owner GUANGZHOU CHINARAY OPTOELECTRONICS MATERIALS
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