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Composite ink, preparation method thereof, and device

A technology of ink and nano-metal particles, which is applied in the manufacture of electric solid-state devices, semiconductor devices, and semiconductor/solid-state devices, etc., can solve the problems of light quenching and damage of luminescent materials, and physical or chemical changes in other structures of devices, so as to improve luminescence. Efficiency, the effect of improving compound efficiency

Inactive Publication Date: 2019-05-03
TCL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a composite ink and its preparation method and device, aiming to solve the problem that the existing ink is easy to cause light quenching of the luminescent material and cause physical or chemical damage to other structures of the device. Changes in nature and problems of damage

Method used

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  • Composite ink, preparation method thereof, and device
  • Composite ink, preparation method thereof, and device
  • Composite ink, preparation method thereof, and device

Examples

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preparation example Construction

[0030] see figure 1 , figure 1 It is a flowchart of a preferred embodiment of a method for preparing a composite ink of the present invention, as shown in the figure, which includes steps:

[0031] S10, providing a nano metal particle solution;

[0032] S20, providing a polymer material solution;

[0033] S30, dispersing the P-type nano metal oxide particles in an alcohol solvent to obtain a P-type nano metal oxide particle dispersion;

[0034] S40, adding the P-type nano metal oxide particle dispersion and polymer material solution into the nano metal particle solution, and mixing to obtain a composite ink.

[0035] Specifically, inkjet printing technology, as an effective way for the industrialization and large-scale production of existing thin-film display devices, can significantly increase the production capacity of thin-film display devices and reduce their production costs. However, because the inkjet printing equipment requires high physical and chemical properties...

Embodiment 1

[0060] A preparation method of composite ink containing PEDOT / PSS:

[0061] Configure four volumes each of 2ml, the solvent is isopropanol, and the concentration is respectively 15mg / ml, 12mg / ml, 10mg / ml, and 8mg / ml of nano-silver spherical particle solution;

[0062] The volume is 200ml, the solvent is ethanol, and the concentration is 30mg / ml nano-titanium oxide particle solution, vigorously stirred to make it evenly dispersed, and then divided into four equal parts;

[0063] Add concentration dropwise respectively in above-mentioned four parts of nano-titanium oxide particle solutions and be 15mg / ml, 12mg / ml, 10mg / ml, the nano-silver spherical particle solution of 8mg / ml, and continue stirring at room temperature for 24 hours, obtain four A nano-silver spherical particle-nano-titanium oxide composite ink.

[0064] Among them, the composite ink added with 15mg / ml nano-silver spherical particle solution was deposited into a film, and its ultraviolet-visible spectrum was tested...

Embodiment 2

[0071] A kind of composite ink preparation method containing PMMA:

[0072] Configure four volumes each of 5ml, the solvent is ethylene glycol, and the concentrations are respectively 18mg / ml, 6 mg / ml, 3 mg / ml, and 1 mg / ml of nano-silver spherical particle solutions;

[0073] The volume is 200ml, the solvent is decanyl alcohol, and the concentration is 70mg / ml of nano-molybdenum oxide particle solution, stir vigorously to make it evenly dispersed, and then divide it into four equal parts;

[0074] To the above-mentioned four parts of nano-molybdenum oxide particle solutions, add dropwise the nano-silver spherical particle solutions with a concentration of 18 mg / ml, 6 mg / ml, 3 mg / ml, and 1 mg / ml, and continue stirring at room temperature for 24 hours, that is, Four parts of nano-silver spherical particles-nano-molybdenum oxide composite ink were obtained.

[0075] Among them, the composite ink added with 18mg / ml nano-silver spherical particle solution was deposited into a film...

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Abstract

The invention discloses composite ink, a preparation method thereof, and a device. The composite ink includes nano metal particles, a high molecular material and P-type nano metal oxide particles, which are dispersed in an alcohol solvent. The physical properties, such as viscosity, surface tension and boiling point, of the composite ink satisfy the present ink-jet printing equipment, and the composite ink can be used for producing an electron injection layer and / or an electron transfer layer of a light-emitting diode device. After annealing and volatilization of the solvent, the P-type nano metal oxide particles and nano metal particles can be separated into different phases, so that quenching of light emitted from the luminescent material is prevented. The nano metal particles in the composite ink have a surface-enhanced resonance effect while the high molecular material can balance cavities and electrons and improve composition efficiency of the cavities and electrons, so that light-emitting efficiency of the light emitting diode device is improved.

Description

technical field [0001] The invention relates to the field of light-emitting diode devices, in particular to a composite ink, a preparation method and a device thereof. Background technique [0002] Surface plasma enhancement (SPE) is another special property of inorganic nanomaterials. For metals in the metal group, such as gold, silver or copper, the nano-sized particles will resonate with the excitation of external electromagnetic waves of specific wavelengths, thereby achieving the effect of enhancing the signal. Therefore, the nanoscale metal particles can be widely used in photoelectric conversion devices, for example, for light-emitting display diodes, the surface enhancement effect brought by the nanometer metal particles can be used to amplify the light emitted by semiconductor materials, thereby improving the device luminous efficiency. [0003] As a wide bandgap material, zinc oxide has a bandgap of about 3.37eV at room temperature and a high exciton binding ener...

Claims

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Application Information

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IPC IPC(8): C09D11/38H01L51/50H01L51/54
Inventor 向超宇邓天旸李乐张滔辛征航张东华
Owner TCL CORPORATION
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