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Printing ink composition and electronic device

A technology of printing ink and composition, which is applied in the field of electroluminescent devices, can solve the problems of restricting wide application and reducing the charge transport capacity of the film, and achieve the effect of ensuring performance

Active Publication Date: 2015-11-18
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 composition and electronic device
  • Printing ink composition and electronic device
  • Printing ink composition and electronic device

Examples

Experimental program
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Effect test

preparation example Construction

[0129] 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. Preparation methods are included in the documents NanoRes, 2009, 2, 425-447; Chem. Mater., 2015, 27(7), pp2246–2285. The entire contents of the above-listed documents are hereby incorporated herein by reference.

[0130] 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, tr...

Embodiment 1

[0160] Embodiment 1: the preparation of blue light quantum dot (CdZnS / ZnS)

[0161]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 u...

Embodiment 2

[0163] Embodiment 2: the preparation of green light quantum dot (CdZnSeS / ZnS)

[0164] 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.

[0165] 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 a printing ink composition comprising one or more inorganic nano-materials. The printing ink composition comprises the inorganic nano-materials, particularly quantum dots, and one or more organic solvents based on substituted aromatics or heteroaromatics. The invention further relates to an electronic device printed with the printing ink, particularly an electroluminescent device.

Description

technical field [0001] The present invention relates to a printing ink composition comprising inorganic nanomaterials, said ink composition comprising at least one inorganic nanomaterial, and at least one substituted aromatic or heteroaromatic based organic solvent; the present invention also relates to An electronic device, especially an electroluminescence device, printed by using the printing ink composition. Background technique [0002] Various inorganic nanoparticle materials have gradually shown advantages over inorganic bulk materials and organic materials in various application fields due to their nanoscale size, controllable preparation of morphology, and adjustable physical and chemical properties through size and morphology. Especially in the field of optoelectronic materials and devices. Among them, quantum dots are nanometer-sized semiconductor materials with quantum confinement effects. When stimulated by light or electricity, quantum dots will emit fluoresce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09D11/033C09D11/36C09D11/30
CPCC09D11/03C09D11/30C09D11/36C09D11/033C09D11/52C09K11/54C09K11/565C09K11/883Y02E10/549H10K71/15H10K71/135H10K50/115C09K11/08
Inventor 潘君友杨曦
Owner GUANGZHOU CHINARAY OPTOELECTRONICS MATERIALS
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