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A kind of organic luminescent material and its application on oled

An organic and electroluminescent technology, applied in the field of semiconductors, can solve the problems of insufficient efficiency, lifespan, difficult to achieve full-color RGB, very different, etc., to achieve the effect of improving color purity, good industrialization prospects, and inhibiting the degree of crystallization

Active Publication Date: 2019-05-24
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, for the collocation of OLED devices with different structures, the photoelectric functional materials used have strong selectivity, and the performance of the same material in devices with different structures may be completely different.
[0008] At present, the research of fluorescent materials has made great progress and can meet the needs of industrialization; however, there are still deficiencies in its efficiency and lifespan, and it is difficult to meet the requirements of full-color RGB

Method used

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  • A kind of organic luminescent material and its application on oled
  • A kind of organic luminescent material and its application on oled
  • A kind of organic luminescent material and its application on oled

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Example 1 (Compound 04)

[0058] The concrete synthetic route of this compound is provided now:

[0059]

[0060] 250ml four-necked bottle, under the protection of nitrogen, add 0.01mol intermediate A, 0.025mol diphenylamine, 0.03mol sodium tert-butoxide, 1×10 -4 mol Pd 2 (dba) 3 , 1×10 -4 mol tri-tert-butylphosphine, 150ml toluene, heated to reflux for 20 hours, the reaction was complete; naturally cooled, filtered, the filtrate was rotary evaporated, passed through a silica gel column, beaten with a mixed solvent of toluene:ethanol=1:3 (volume ratio), and recrystallized White solid, purity (HPLC) 98.3%, yield 62.2%.

[0061] Elemental analysis structure (molecular formula C 53 h 38 N 2 o 2 ): Theoretical value C,86.62; H,5.21; N,3.81; O,4.35 Test value: C,86.67; H,5.16; N,3.80; O,4.37

Embodiment 2

[0062] Example 2 (Compound 08)

[0063] The concrete synthetic route of this compound is provided now:

[0064]

[0065] In a 250ml four-neck flask, under nitrogen protection, add 0.01mol of intermediate A, 0.011mol of bis(4-tert-butylphenyl)amine, 0.03mol of sodium tert-butoxide, 1×10 -4 mol Pd 2 (dba) 3 , 1×10 -4 mol tri-tert-butylphosphine, 150ml toluene, heated to reflux for 20 hours, the reaction was complete; naturally cooled, filtered, the filtrate was rotary evaporated, passed through a silica gel column, beaten with a mixed solvent of toluene:ethanol=1:2 (volume ratio), and recrystallized White solid, purity (HPLC) 98.6%, yield 54.1%.

[0066] Elemental analysis structure (molecular formula C 62 h 55 NO): Theoretical value C,89.71; H,6.68; N,1.69; O,1.93 Test value: C,89.68; H,6.71; N,1.71; O,1.92

Embodiment 3

[0067] Example 3 (compound 14)

[0068] The concrete synthetic route of this compound is provided now:

[0069]

[0070] In a 250ml four-neck flask, under nitrogen protection, add 0.01mol of intermediate A, 0.025mol of bis(3,4-dimethylphenyl)amine, 0.03mol of sodium tert-butoxide, 1×10 -4 mol Pd 2 (dba) 3 , 1×10 -4 mol tri-tert-butylphosphine, 150ml toluene, heated to reflux for 20 hours, the reaction was complete; naturally cooled, filtered, the filtrate was rotary evaporated, passed through a silica gel column, beaten with a mixed solvent of toluene:ethanol=1:2.5 (volume ratio), and recrystallized White solid, purity (HPLC) 98.3%, yield 57.8%.

[0071] Elemental analysis structure (molecular formula C 71 h 56 N 2 o 2 ): Theoretical value C,87.98; H,5.82; N,2.89; O,3.30 Test value: C,87.89; H,5.84; N,2.80; O,3.47

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Abstract

The invention discloses an organic luminescent material and its application on OLED. The structural formula of the compound is shown in the general formula (1). The material has good fluorescence quantum efficiency and electroluminescent efficiency, and has good thermal stability, so the material can be used as a doping material for a light-emitting layer in an organic electroluminescent device.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to the synthesis of a fluorescent compound and its application in organic light-emitting diodes as a light-emitting layer doping material. Background technique [0002] Organic electroluminescent (OLED: Organic Light Emission Diodes) device technology can be used to manufacture new display products and also can be used to make new lighting products, which is expected to replace the existing liquid crystal display and fluorescent lighting, and has a wide application prospect. [0003] Currently, OLED display technology has been applied in smart phones, tablet computers and other fields, and will further expand to large-size applications such as TVs. However, compared with the actual product application requirements, the luminous efficiency and service life of OLED devices need to be further improved. [0004] The OLED light-emitting device is like a sandwich structure, includ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D493/04C07D495/04C07D491/048C07C211/61C07D307/93C07D487/04C07D307/91C07F7/10C07D209/88C07D493/06C07D493/10C07D495/10C07D219/08C07D279/22C07D497/04C07D498/04C07D407/12C07D498/10C07D407/14C07D405/14C07D401/04C07D491/056C09K11/06H01L51/50H01L51/54
CPCC07C211/61C07D209/88C07D219/08C07D279/22C07D307/91C07D307/93C07D401/04C07D405/14C07D407/12C07D407/14C07D487/04C07D491/048C07D491/056C07D493/04C07D493/06C07D493/10C07D495/04C07D495/10C07D497/04C07D498/04C07D498/10C07F7/0812C09K11/06C09K2211/1011C09K2211/1025C09K2211/1029C09K2211/1033C09K2211/1037C09K2211/1092C09K2211/1088H10K85/625H10K85/636H10K85/633H10K85/615H10K85/6576H10K85/6574H10K85/657H10K85/6572H10K50/12
Inventor 叶中华李崇张兆超徐凯张小庆
Owner JIANGSU SUNERA TECH CO LTD
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