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Organic light emitting diode

A technology of light-emitting diodes and organic light-emitting layers, applied in organic semiconductor devices, nanotechnology, electrical components, etc., can solve the problems of disorderly arrangement of carbon nanotubes, poor dispersion, easy aggregation of carbon nanotubes, etc., and enhance the ability to transmit electrons , good dispersion effect

Active Publication Date: 2019-03-05
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the fact that carbon nanotubes are easy to agglomerate in organic solvents and have poor dispersion, the carbon nanotubes in the prepared composite structure are arranged in a disorderly manner and the dispersion is not uniform.
When the composite structure is used as an electron transport layer in an OLED, the electron transport layer has a poor ability to transport electrons

Method used

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  • Organic light emitting diode
  • Organic light emitting diode
  • Organic light emitting diode

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Embodiment Construction

[0055] The organic light-emitting diode provided by the present invention and the preparation method thereof will be further described in detail below with reference to the accompanying drawings and specific examples. The improvement of the present invention is mainly to provide a new composite structure of carbon nanotubes and apply it to organic light-emitting diodes. Therefore, in order to facilitate understanding, the description of the present invention first introduces the carbon nanotube composite structure used in the present invention and its preparation method.

[0056] See figure 1 , the first embodiment of the present invention provides a method for preparing a carbon nanotube composite structure 130, comprising the following steps: S1, disposing a carbon nanotube structure 110 on the first surface 102 of a substrate 100, the carbon nanotube structure 110 There is an opposite second surface 112 and a third surface 114, the third surface 114 is in direct contact wi...

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Abstract

Disclosed is an organic light emitting diode. The organic light emitting diode comprises a support body, an anode electrode, a hole transmission layer, an organic light emitting layer and an electrontransmission layer, wherein the support body, the anode electrode, the hole transmission layer, the organic light emitting layer and the electron transmission layer are sequentially stacked; the electron transmission layer is a carbon nano tube composite structure; the carbon nano tube composite structure has a first surface and a second surface which are opposite to each other; the carbon nano tube composite structure comprises a polymer and a plurality of first carbon nano tubes, wherein the first carbon nano tubes are dispersed in the polymer; and a part of the surfaces of the first carbonnano tubes are exposed from the first surface of the polymer and are in direct contact with the organic light emitting layer.

Description

technical field [0001] The invention relates to an organic light emitting diode. Background technique [0002] Organic light emitting diode (OLED) is a light-emitting diode whose light-emitting layer is composed of organic compounds. As an efficient light source, it has many characteristics such as light weight, thin thickness, multi-color, and low manufacturing cost , making organic light-emitting diodes gradually show a tendency to replace traditional light-emitting diodes in the lighting application of large-area surface light sources, and have been widely used in various fields. [0003] The composite structure formed by carbon nanotubes and polymers in the prior art can be used as the electron transport layer of OLED. The composite process of the carbon nanotubes and the polymer is generally: dispersing the carbon nanotubes in an organic solvent to form a carbon nanotube dispersion, dissolving the polymer in an organic solvent to form a polymer solution, and then disso...

Claims

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Application Information

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IPC IPC(8): H01L51/54H01L51/50B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H10K85/221H10K50/16H10K71/191H10K50/11H10K50/15H10K50/17H10K50/81H10K50/82H10K50/171H10K71/00H10K2102/331
Inventor 宁文柳鹏姜开利范守善
Owner TSINGHUA UNIV
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