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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 electrical solid devices, semiconductor devices, semiconductor/solid-state devices, etc., can solve problems such as light quenching of luminescent materials, physical or chemical changes and damage of other structures of devices, and achieve improved luminescence efficiency effect

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

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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

[0028] See figure 1 , figure 1 It is a flowchart of a preferred embodiment of a method for preparing a composite ink according to the present invention, as shown in the figure, which includes the steps:

[0029] S10. Provide an anisotropic nano metal particle solution;

[0030] S20: Disperse the metal oxide particles in an alcohol solvent to obtain a nano metal oxide particle dispersion;

[0031] S30. Adding the nano metal oxide particle dispersion to the anisotropic nano metal particle solution, and mixing to obtain a composite ink.

[0032] 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 inkjet printing equipment requires high physical and chemical properties of the ink, such as suitable boiling point, viscosity, surface tension, and uniformly dispe...

Embodiment 1

[0057] A composite ink includes nano titanium oxide particles and nano silver rod-shaped particles dispersed in ethanol. The preparation method of the composite ink includes:

[0058] Prepare 100 mL ethanol solution of nano titanium oxide particles with a concentration of 30 mg / mL;

[0059] Prepare 5 mL of ethanol solution of 20 mg / mL silver nano rod-shaped particles protected by citrate;

[0060] Under vigorous stirring, add dropwise the ethanol solution of nano silver rod-shaped particles to the ethanol solution of nano titanium oxide particles, and continue stirring for 24 hours at room temperature;

[0061] It is washed repeatedly with ethanol for 3 times, and then redispersed with ethanol to obtain nano-silver rod-shaped particles-nano-titanium oxide composite ink.

[0062] Deposit the above-mentioned composite ink into a film, and test its ultraviolet-visible light spectrum, such as figure 2 As shown, after the composite ink is formed into a film, there is a strong peak with a ha...

Embodiment 2

[0068] A composite ink includes nano titanium oxide particles and nano gold rod-shaped particles dispersed in ethanol. The preparation method of the composite ink includes:

[0069] Prepare 100 mL ethanol solution of nano titanium oxide particles with a concentration of 30 mg / mL;

[0070] Prepare 5 mL ethanol solution of 3 mg / mL gold nanorod-shaped particles protected by citrate;

[0071] Under vigorous stirring, add dropwise the ethanol solution of nano gold rod-shaped particles to the ethanol solution of nano titanium oxide particles, and continue stirring for 24 hours at room temperature;

[0072] It is washed repeatedly with ethanol for 3 times, and then redispersed with ethanol to obtain nano-gold rod-shaped particles-nano-titanium oxide composite ink.

[0073] The above composite ink was deposited into a film, and its ultraviolet-visible light spectrum was tested. It was found that after the composite ink was formed, there was a strong peak with a half-value width of 13nm at 550 n...

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Abstract

The invention discloses composite ink, a preparation method thereof, and a device. The composite ink includes nano metal oxide particles and anisotropic nano metal particles, which are dispersed in analcohol solvent. The physical properties, such as viscosity, surface tension and boiling point, of the composite ink satisfy the present ink-jet printing equipment. After annealing and volatilizationof the solvent, the nano metal oxide particles and anisotropic nano metal particles can be separated into different phases, so that quenching of light emitted from the luminescent material is prevented. The composite ink has a surface-enhanced resonance effect so that light-emitting efficiency of a 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 and a preparation method and devices thereof. Background technique [0002] Surface plasma enhancement (SPE) is another special property of inorganic nanomaterials. For coin group metals, such as gold, silver or copper, its 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 nano-level metal particles can be widely used in photoelectric conversion devices. For example, for light-emitting display diodes, the surface enhancement effect brought by the nano-metal particles can be used to amplify the light emitted by semiconductor materials, thereby improving the device. The luminous efficiency. [0003] As a wide band gap material, zinc oxide has a band gap of about 3.37 eV at room temperature and high exciton binding energy, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30H01L51/50H01L51/54
Inventor 向超宇邓天旸李乐张滔辛征航张东华
Owner TCL CORPORATION
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