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Compound, coating composition comprising same and organic light-emitting device

A technology for organic light-emitting devices and compounds, applied in the fields of compounds, coating compositions containing them, and organic light-emitting devices, capable of solving problems such as low LUMO energy levels, achieving high solubility, improving light efficiency, and reducing driving voltage

Active Publication Date: 2020-06-05
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Poly(styrenesulfonic acid)-doped poly(3 ,4-Ethylenedioxythiophene) (PEDOT:PSS) has a low LUMO energy level and, therefore, is problematic in fabricating organic light-emitting devices with high efficiency and long lifetime.

Method used

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  • Compound, coating composition comprising same and organic light-emitting device
  • Compound, coating composition comprising same and organic light-emitting device
  • Compound, coating composition comprising same and organic light-emitting device

Examples

Experimental program
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Embodiment approach

[0203] Hereinafter, the specification will be described in detail with reference to the examples to specifically describe the specification. However, the embodiments according to the present specification can be modified into various forms, and the scope of the present specification should not be construed as being limited to the following embodiments. The embodiments of this specification are provided to more fully describe this specification to those skilled in the art.

preparation example 1-1

[0205] -Preparation of Compound 1

[0206] Preparation of Intermediate I-1

[0207]

[0208] Filled with 3-bromo-9-phenyl-9H-carbazole (16.11g, 50.0mmol), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborin -2-yl) aniline (10.95g, 50.0mmol), tetrakis (triphenylphosphine) palladium (0) (1.73g, 1.5mmol) and K 2 CO 3 (20.23g, 100.0mmol) in the flask, introduce THF / H 2 O (v / v=3 / 1) (800ml), and the resultant was heated under N at 80°C 2 Stirring was continued for 16 hours. After allowing the reaction to end, the reaction solution was cooled, and then the organic layer was extracted using an extraction flask. with MgSO 4 The organic layer was dried, and the organic solvent was removed using a rotary vacuum evaporator, and then the residue was subjected to column purification to obtain I-1 (10.2 g, yield 51%, HPLC purity 99.4%).

[0209] Preparation of Intermediate I-2

[0210]

[0211] Toluene was introduced into a flask containing 1-1 (3.2 g, 10.0 mmol), bromobenzene (1.57 g,...

Embodiment 1

[0372] deposited on it with a thickness of The indium tin oxide (ITO) glass substrate as a thin film was placed in distilled water dissolved with detergent and cleaned ultrasonically. After cleaning the ITO for 30 minutes, ultrasonic cleaning was repeated twice for 10 minutes using distilled water. After completion of rinsing with distilled water, the substrates were ultrasonically cleaned with isopropanol and acetone solvents for 30 minutes each, dried, and then transferred to a glove box.

[0373] On the transparent ITO electrode prepared as above, a coating composition mixed with compound 1 (20 mg), chemical formula D-1 (1 mg) and toluene (1 mg) was formed by spin coating to form a thickness of The hole injection layer was made and the coating composition was allowed to cure in air on a hot plate for 1 hour. After that, the resultant was transferred to a vacuum deposition apparatus, and a hole transport layer was formed on the hole injection layer by vacuum deposition o...

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Abstract

The present specification relates to a compound, a coating composition comprising same and an organic light-emitting device.

Description

technical field [0001] This application claims priority and benefit from Korean Patent Application No. 10-2018-0058329 filed with the Korean Intellectual Property Office on May 23, 2018, the entire contents of which are incorporated herein by reference. [0002] The present specification relates to compounds, coating compositions comprising them, and organic light emitting devices. Background technique [0003] The phenomenon of organic luminescence is one of the instances where electrical current is converted into visible light by internal processes of specific organic molecules. The principle of the organic light emitting phenomenon is as follows. When an organic material layer is placed between an anode and a cathode and an electric current is applied between the two electrodes, electrons and holes are injected into the organic material layer from the cathode and the anode, respectively. The holes and electrons injected into the organic material layer recombine to form ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/82C07D209/88H01L51/00C09D4/00C09D7/63H01L51/50
CPCC07D209/82C09D4/00C09D7/63C07D209/86C07D209/88C07D407/12H10K85/322H10K50/11H10K85/6572H10K50/14H10K85/324H10K85/633H10K50/15
Inventor 金光显朴英珠姜成京裴在顺李载澈禹儒真金大虎金炳宰
Owner LG CHEM LTD
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