Composition including dopant and matrix, and organic electroluminescent device

A heteroaryl and aryl technology, which is applied in the combination of dopants and hosts and in the field of organic electroluminescent devices, can solve the problems of difficulty in obtaining a blue light-emitting layer, unsatisfactory luminous efficiency, and unsatisfactory operating life of power efficiency.

Inactive Publication Date: 2014-10-22
ROHM & HAAS ELECTRONICS MATERIALS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Meanwhile, when the light-emitting materials containing conventional dopant compounds and host compounds are applied to organic EL devices, it will lead to unsatisfactory results in light-emitting efficiency, power efficiency, operating life, etc.
In particular, it is difficult to obtain a blue light-emitting layer with excellent lifetime characteristics

Method used

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  • Composition including dopant and matrix, and organic electroluminescent device
  • Composition including dopant and matrix, and organic electroluminescent device
  • Composition including dopant and matrix, and organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1: the preparation of compound H-1

[0062]

[0063] Preparation of Compound 1-1

[0064] Mix 1,4-dibromonaphthalene (60 g, 0.20 mol), phenylboronic acid (30 g, 0.24 mol), Pd(PPh 3 ) 4(9.6 g, 8.3 mmol) and Na 2 CO 3 (66 grams, 0.60 moles), add 1200 milliliters of toluene afterwards, 300 milliliters of ethanols, and H 2 O 300 mL to dissolve the mixture, and the mixture was stirred at 100 °C for 12 h. After the reaction, the H 2 O was slowly added to the mixture to complete the reaction, the organic layer was extracted with ethyl acetate, and MgSO 4 Remove residual moisture. The residue was then dried and separated using a column to obtain compound 1-1 (26 g, 43%).

[0065] Preparation of Compound H-1

[0066] In mixed compound 1-1 (26 g, 0.09 mol), 10-phenylanthracene-9-ylboronic acid (30 g, 0.11 mol), Pd(PPh 3 ) 4 (6.3 g, 5.51 mmol) and K 2 CO 3 (38 grams, 0.30 moles), add 280 milliliters of toluene, 140 milliliters of ethanol, and H 2 1...

Embodiment 2

[0067] Embodiment 2: the preparation of compound H-42

[0068]

[0069] Preparation of compound 2-1

[0070] Compound 2-1 was prepared by the same synthetic method as Compound 1-1 except for using 1,4-dibromonaphthalene and dS-phenylboronic acid.

[0071] Preparation of Compound H-42

[0072] Using compound 2-1 and 10-phenylanthracene-9-ylboronic acid compound, compound H-42 (5 g, 52%) was prepared by the same synthetic method as compound H-1.

Embodiment 3

[0073] Embodiment 3: the preparation of compound D-3

[0074]

[0075] In a flask mix 5,9-dibromo-7,7-dimethyl-7H-benzo[c]fluorene (7 g, 0.0174 mol), diphenylamine (7.3 g, 0.0435 mol), palladium acetate (195 mg , 0.87 mmol), tri-tert-butylphosphine (0.8 ml, 1.7 mmol), and NaOt-Bu (5 g, 0.0522 mol), 120 ml of toluene was added to the mixture, and stirred and refluxed at 120 ° C for 3 hours . After the reaction was complete, the organic layer was extracted with ethyl acetate and washed with MgSO 4 Remove residual moisture. The residue was then dried and separated using a chromatography column to obtain compound D-3 (6 g, 55%).

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Abstract

Provided are a composition including a dopant and a matrix, and an organic electroluminescent device. The invention relates to a composition. The composition includes one or more matrix compounds, presented by the chemical formula 1, and also includes one or more dopant compounds, presented by the chemical formula 2.

Description

technical field [0001] The present invention relates to a composition comprising a dopant compound and a matrix compound and an organic electroluminescent device comprising the composition. Background technique [0002] An electroluminescent device (EL device) is a self-luminous device that has the advantages of wider viewing angle, higher contrast ratio, and faster response time. Organic EL devices were first developed by Eastman Kodak, which used small aromatic diamine molecules and aluminum complexes as materials for forming the light emitting layer [Appl.Phys.Lett.51 , 913, 1987]. [0003] Organic EL devices can reduce production costs and material costs, and, compared with liquid crystal devices (LCDs), have the advantages of wider viewing angles, higher contrast ratios, and faster response times. Since its inception, organic EL devices have been significantly improved over 80 times in efficiency and over 100 times in life. [0004] In addition, organic EL devices co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06H01L51/54
CPCC09K11/06C07C15/28C07C211/54H10K85/649H10K85/656H10K50/12H10K50/11H10K2101/10
Inventor 李暻周金侈植金进喜金荣佶李孝姃赵英俊全廷桓
Owner ROHM & HAAS ELECTRONICS MATERIALS LLC
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