Manufacturing method of organic light emitting diode
A technology of light-emitting diodes and organic light-emitting layers, which is applied in the manufacture of semiconductor/solid-state devices, electric solid-state devices, semiconductor devices, etc., and can solve problems such as uneven dispersion, poor ability of electron transport layer to transport electrons, and disorderly arrangement of carbon nanotubes , to achieve the effect of large contact area and enhanced ability
Active Publication Date: 2020-01-07
TSINGHUA UNIV +1
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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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[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 with the first surface 102 of the substrate 100; S2, providing a monomer solution 140, the monomer solution 140 is to disperse the monomer into the organic formed in a solvent, and apply the monomer solution 140 to the carbon nanotube structure 110; S3, polymerize the monomer; S4, remove the substrate 100 to obtain the carbon nanotube composite structure 130.
[0057] In step S1 , the carbon nanotube structure 110 includes a plurality of uniformly distributed carbon nanotubes 118 , with gaps 116 between adjacent carbon nanotubes 118 . The plurality of carbon nanotubes 118 are ...
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Abstract
A method for preparing an organic light-emitting diode, comprising the following steps: providing a carbon nanotube composite structure, the carbon nanotube composite structure has opposite first surfaces and second surfaces, the carbon nanotube composite structure includes a polymer and dispersed A plurality of first carbon nanotubes in the polymer, part of the surface of the plurality of first carbon nanotubes is exposed from the second surface of the polymer; an organic light-emitting layer is arranged on the second surface; A hole transport layer and an anode electrode are sequentially stacked on the surface of the organic light-emitting layer away from the carbon nanotube composite structure; and a cathode electrode is arranged on the first surface.
Description
technical field [0001] The invention relates to a preparation method of 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 ...
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IPC IPC(8): H01L51/50H01L51/52H01L51/56H01L51/54H10K99/00
CPCH10K85/111H10K85/221H10K50/165H10K50/82H10K71/12H10K71/60H10K85/10H10K50/16H10K71/00H10K71/80H10K50/11H10K50/15
Inventor 宁文柳鹏姜开利范守善
Owner TSINGHUA UNIV