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Carbazole structure-containing derivative, and preparation method and organic electroluminescent device thereof

A derivative, carbazole technology, applied in the field of organic optoelectronic materials, can solve the problems of reduced luminous efficiency and inability to improve

Inactive Publication Date: 2018-03-23
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the triplet deactivation dominates in the high-brightness region, the decrease in luminous efficiency cannot be improved under the conditions of the currently applied hole-transport materials.

Method used

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  • Carbazole structure-containing derivative, and preparation method and organic electroluminescent device thereof
  • Carbazole structure-containing derivative, and preparation method and organic electroluminescent device thereof
  • Carbazole structure-containing derivative, and preparation method and organic electroluminescent device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Preparation of compound TM1

[0048]

[0049] Preparation of 1-3

[0050] Under the protection of nitrogen, compound 1-1 (6.89g, 41.28mmol), 1-2 (11.80g, 41.28mmol), potassium carbonate (4.39g, 31.75mmol), and toluene 200mL were added into a 2L reactor and stirred. The temperature in the reactor was raised to 70°C, and Pd(PPh 3 ) 4 (1.04g, 0.90mmol), stirred with 100mL distilled water, stirred and refluxed for 11h, fully reacted. After adding 70 mL of distilled water to terminate the reaction, filter under reduced pressure, wash the solid with distilled water, and then recrystallize with acetone, toluene, and THF. After the solid is obtained, it is sublimated and recrystallized from toluene to obtain 12.89 g of 1-3 with a yield of 80.89%.

[0051] Preparation of 1-4

[0052] In a 250ml three-neck flask, add 1-3 (12.89g, 41.28mmol), the solvent o-dichlorobenzene, and 200ml triethyl phosphite, and heat the solution to 150°C for 15h. The solvent and excess triethyl...

Embodiment 2

[0062] Preparation of Compound TM7

[0063]

[0064] R in Example 1 1 , R 2 and Ar 1 、Ar 2 The group is replaced by R as indicated above 1 , R 2 and Ar 1 、Ar 2 Group, other steps are the same as in Example 1 to obtain compound TM3. Mass Spectrum m / z: 587.24 (calculated: 587.25).

Embodiment 3

[0066] Preparation of compound TM12

[0067]

[0068] R in Example 1 1 , R 2 and Ar 1 、Ar 2 The group is replaced by R as indicated above 1 , R 2 and Ar 1 、Ar 2 Group, other steps are the same as in Example 1 to obtain compound TM12. Mass Spectrum m / z: 642.21 (calculated: 642.23).

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Abstract

The invention provides a carbazole structure-containing derivative, and a preparation method and an organic electroluminescent device thereof, and belongs to the technical field of organic photoelectric materials. The compound has a structure represented by formula (I), and the R1, R2, Ar1 and Ar2 groups in the asymmetric structure carbazole structure are adjusted to improve the hole mobility andimprove the hole transportation performance, so the luminescence efficiency of the device is improved, and the compound is an organic luminescent material having good performances.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to a derivative containing a carbazole structure, a preparation method thereof, and an organic electroluminescent device. Background technique [0002] With the progress of the information industry, traditional displays can no longer meet people's requirements, such as: cathode ray tube (CRT) displays have large volume and high driving voltage; liquid crystal displays (liquid crystal display, LCD) have low brightness and narrow viewing angles. , The operating temperature range is small; the plasma display panel (PDP) is expensive, the resolution is not high, and the power consumption is large. [0003] Organic light-emitting diodes (organic light-emitting diodes, OLEDs) as a new display technology has unparalleled advantages in various performances of existing display technologies, such as full solid state, self-luminous, high brightness, high resolution , w...

Claims

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Application Information

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IPC IPC(8): C07D209/80C07D401/12C07D409/12C07D405/12C07D209/88C07D401/14C07D409/14C07D401/04C07D405/14C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D209/80C07D209/88C07D401/04C07D401/12C07D401/14C07D405/12C07D405/14C07D409/12C07D409/14C09K2211/1092C09K2211/1088C09K2211/1029C09K2211/1022C09K2211/1011C09K2211/1014C09K2211/1007H10K85/624H10K85/622H10K85/636H10K85/626H10K85/633H10K85/615H10K85/631H10K85/6576H10K85/6574H10K85/6572H10K50/15
Inventor 张弘蔡辉
Owner CHANGCHUN HYPERIONS TECH CO LTD
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