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Organic light-emitting material and device containing anthracene and benzimidazole structure

A benzimidazole and luminescent technology, applied in the direction of luminescent materials, electric solid devices, electrical components, etc., can solve the problems of limited application, efficiency roll-off, short life, etc., and achieve transmission balance, high triplet energy level, wide The effect of energy gap

Inactive Publication Date: 2018-07-27
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relatively speaking, blue light-emitting materials are relatively scarce. Although materials such as Firpic, represented by blue phosphorescent luminescent materials, have high luminous efficiency, their lifespan is short and the efficiency rolls off seriously, which limits their further applications.
Although blue-light fluorescent guest materials generally have a long lifespan, they need materials with both a wide energy gap and high thermal stability, which is the difficulty in the development of blue-light fluorescent guest materials.

Method used

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  • Organic light-emitting material and device containing anthracene and benzimidazole structure
  • Organic light-emitting material and device containing anthracene and benzimidazole structure
  • Organic light-emitting material and device containing anthracene and benzimidazole structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1: the preparation of compound 1

[0058]

[0059] Step1. Take 1-3, 100mmol, add 2 equivalents of 1-4, 300mmol potassium tert-butoxide, 1mmol Pd 2 (dba) 3 , toluene, replaced with argon three times, added 4 mmol tri-tert-butylphosphine, replaced with argon three times again, reacted at reflux temperature for 10 h, and passed the crude product through a silica gel column to obtain 80 mmol of compound 1-2.

[0060] Step2. Products 1-2, 80mmol, 1-1, 200mmol, dissolved in a mixed solvent of DMF and water at a ratio of 9:1 (v / v), heated to 80°C, fed with oxygen, stirred for 6 hours, and reacted After completion, the organic phase was spin-dried and subjected to column chromatography to obtain product 1, 65 mmol.

Embodiment 2

[0061] Embodiment 2: the preparation of compound 2

[0062] With embodiment 1, 1-4 in Step1. is replaced by

Embodiment 3

[0063] Embodiment 3: the preparation of compound 5

[0064] With embodiment 1. Replace 1-1 in Step2. with

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Abstract

The invention provides an organic light-emitting material and device containing anthracene and benzimidazole structure and belongs to the technical field of organic light-emitting materials. The organic light-emitting material containing anthracene and benzimidazole structure is provided; anthracene ring is blue light structure of excellent performance, having high triplet energy level and wide energy gap, benzimidazole groups are connected in molecules, electron transport capacity is improved, and carrier transfer is balanced. Compared with the prior art, the organic light-emitting material containing anthracene and benzimidazole structure has high light-emitting efficiency when applied to organic light-emitting devices, especially as a blue guest material in a light-emitting layer.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an organic electroluminescence material containing anthracene and benzimidazole structures and an organic light-emitting device thereof. Background technique [0002] Organic electroluminescence refers to the phenomenon that organic materials are excited by electric current and electric field to emit light under the action of electric field. Organic light-emitting diodes (OLEDs) are a next-generation display technology that utilizes this phenomenon to realize displays. Since Tang C.W. and Vanslyke S.A. of American Kodak Company produced the first organic electroluminescent device with excellent performance in 1987, organic electroluminescent displays have attracted great interest due to their advantages. [0003] At present, red and green luminescent materials have been commercially used due to their excellent performance. Relatively speaking, blue light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D235/18C07D235/02C07D403/14C07D413/14C07D417/14C07D401/14C07D405/14C07D409/14C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D235/02C07D235/18C07D401/14C07D403/14C07D405/14C07D409/14C07D413/14C07D417/14C09K2211/1092C09K2211/1088C09K2211/1044C09K2211/1037C09K2211/1033C09K2211/1059C09K2211/1011C09K2211/1007C09K2211/1029C09K2211/1014H10K85/626H10K85/631H10K85/615H10K85/654H10K85/657H10K50/12H10K85/6572
Inventor 孙可一蔡辉
Owner CHANGCHUN HYPERIONS TECH CO LTD
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