Quantum dot ink and electroluminescent device

A technology of quantum dots and inks, applied in the field of quantum dot inks and electroluminescent devices, can solve the problems of poor solubility and dispersibility of quantum dots, achieve smooth printing process, increase dispersibility and solubility, and excellent film-forming properties Effect

Active Publication Date: 2017-11-28
SUZHOU XINGSHUO NANOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a quantum dot ink to solve the disadvantages of poor solubility and dispersibility of quantum dots in existing quantum dot inks

Method used

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  • Quantum dot ink and electroluminescent device
  • Quantum dot ink and electroluminescent device
  • Quantum dot ink and electroluminescent device

Examples

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Embodiment 1

[0068]In the quantum dot ink provided in this embodiment, the quantum dots are CdSe / ZnS quantum dots with a particle size of about 7 nm, and the solvent is composed of n-octane and 2-methyl-2,4-pentanediol.

[0069] The specific composition of the quantum dot ink in this embodiment is as follows, by weight percentage, including 15.00% of CdSe / ZnS quantum dots, 40.00% of n-octane, and 45.00% of 2-methyl-2,4-pentanediol.

Embodiment 2

[0071] It is the same as Example 1, except that the quantum dot ink of this example also includes a co-solvent, which is mercaptopropionic acid.

[0072] The specific composition of the quantum dot ink in this embodiment is as follows, by weight percentage, including 30.00% of CdSe / ZnS quantum dots, 40.00% of n-octane, 28.00% of 2-methyl-2,4-pentanediol, mercaptopropionic acid 2.00%.

Embodiment 3

[0074] It is the same as Example 1, except that the quantum dot ink of this example also includes a co-solvent, and the co-solvent is mercaptohexanol.

[0075] The specific composition of quantum dot ink in this embodiment is as follows, by weight percentage, including CdSe / ZnS quantum dot 45.00%, n-octane 40.00%, 2-methyl-2,4-pentanediol 10.00%, mercaptohexanol 5.00%.

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Abstract

The invention provides quantum dot ink. The quantum dot ink is characterized by being prepared from components in percentage by weight as follows: 0.01%-50.00% of quantum dots, 30.00%-99.98% of a solvent and 0.01%-40.00% of a cosolvent, wherein the cosolvent contains mutually linked groups R1 and groups R2, the groups R1 contain at least one oxygen-containing functional group, the groups R2 contain at least one coordination functional group W capable of being bonded with the quantum dots, and the cosolvent totally contains 2-25 carbon atoms. The problems of lower solubility and poorer dispersity of quantum dots of the conventional quantum dot ink can be solved effectively.

Description

technical field [0001] The invention relates to the field of light emitting devices, in particular to a quantum dot ink and an electroluminescent device. Background technique [0002] With the continuous advancement of technology, display devices are gradually developing in the direction of thinner, higher color gamut, and more stability. As a self-luminous display device, quantum dot light-emitting diode (QLED) just meets the user's requirements for next-generation display devices. QLED has the advantages of high color gamut and good stability. [0003] The application of inkjet printing technology to QLED display manufacturing technology is considered to be an effective way to solve high cost and realize large area. This technology can combine solution-based functional materials and advanced inkjet printing equipment to improve the quality of quantum dot materials. Utilization and production efficiency, reduce manufacturing costs, increase production capacity. Different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/38H01L51/50
CPCC09D11/38H10K50/115
Inventor 王思元史横舟王允军
Owner SUZHOU XINGSHUO NANOTECH CO LTD
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