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Composition and organic optoelectronic element and its manufacturing method

A technology for optoelectronic components and manufacturing methods, which is applied in the fields of electrical components, semiconductor/solid-state device manufacturing, and electric-solid-state devices, etc., can solve problems such as large room for improvement, and achieve the effect of improving light extraction efficiency

Active Publication Date: 2022-04-19
YAMAGATA UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light extraction efficiency of organic EL elements generally stops at about 20-30%, and there is a lot of room for improvement

Method used

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  • Composition and organic optoelectronic element and its manufacturing method
  • Composition and organic optoelectronic element and its manufacturing method
  • Composition and organic optoelectronic element and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0194] Fabrication of the charge transport layer

[0195] Two silicon substrates and one quartz substrate cut into about 2 cm square were ultrasonically cleaned with neutral detergent, acetone, and isopropanol, and then boiled and washed in isopropanol, and then treated with ozone to remove attachments. The substrates were respectively placed in a vacuum evaporation machine and vacuumed to a pressure of 10 -4 Pa or below, then use α-NPD and fluoropolymer A at a volume ratio of α-NPD and fluoropolymer A of 45:55, perform resistance heating in a vacuum evaporation machine, and perform co-evaporation, Thus, a charge transport layer having a thickness of about 100 nm was produced on each substrate. The total vapor deposition rate of the two materials was set to 0.2 nm / s. The surface roughness of the obtained charge transport layer was 0.33 nm.

[0196] Fabrication of elements for conductivity evaluation

[0197]A glass substrate on which a strip-shaped ITO (indium tin oxide) ...

Embodiment 2～9

[0199] Except having used fluoropolymers B to J (except for D) instead of fluoropolymer A, it carried out similarly to Example 1, and produced the charge transport layer and the element for electroconductivity evaluation.

[0200] In addition, in Table 1, the name of the polymer used in each Example is described.

Embodiment 10

[0202] Except having used the fluorine-containing polymer K instead of the fluorine-containing polymer A, it carried out similarly to Example 1, and produced the charge transport layer and the element for conductivity evaluation.

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Abstract

To provide a layer such as a charge transport layer whose refractive index is greatly reduced without impairing conductivity and surface roughness, and a method for manufacturing the same. A vapor deposition film composition obtained by co-depositing a fluorine-containing polymer having a saturated vapor pressure of 0.001 Pa or higher at 300°C and an organic semiconductor material.

Description

technical field [0001] The present invention relates to compositions and organic optoelectronic components and methods for their manufacture. Background technique [0002] In organic optoelectronic elements such as organic electroluminescent elements (hereinafter referred to as "organic EL elements"), the internal quantum efficiency has reached almost 100%, and the improvement of light extraction efficiency has become a problem for further improvement of external quantum efficiency. The light extraction efficiency of organic EL elements generally stops at about 20-30%, and there is a lot of room for improvement. Techniques for improving light extraction efficiency include, for example, the technique of providing fine microlenses on the surface of the substrate, the technique of microfabrication of the substrate surface, the technique of using a substrate with a high refractive index, and the presence of scattering substances between the transparent substrate and the transpar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H05B33/10
CPCH10K50/85H05B33/10H10K85/10H10K85/631H10K85/656H10K50/00C08F2500/02C08F2500/03C08L27/18C08L27/20C08L2203/20H10K85/151H10K50/11H10K50/15
Inventor 横山大辅阿部岳文桑名保宏
Owner YAMAGATA UNIVERSITY
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