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Organic electroluminescent device and application thereof

An electroluminescent device and organic technology, applied in the field of semiconductors, can solve problems such as different performances, and achieve the effects of strong hole transport capability, reduced efficiency roll-off, and high Eg

Active Publication Date: 2019-10-11
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.

Method used

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  • Organic electroluminescent device and application thereof
  • Organic electroluminescent device and application thereof
  • Organic electroluminescent device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Synthesis of Intermediate N

[0053]

[0054] Weigh raw material I and raw material II dissolved in toluene, then add Pd 2 (dba) 3 , triphenylphosphine and potassium tert-butoxide; under an inert atmosphere, react the mixed solution of the above reactants at a reaction temperature of 90-110°C for 10-24 hours, cool and filter the reaction solution, spin the filtrate, and pass it through a silica gel column , obtain target compound; The mol ratio of described raw material I and raw material II is 1:(1.0-1.5); Pd 2 (dba) 3 The molar ratio to raw material I is (0.006-0.02):1, the molar ratio of sodium tert-butoxide to raw material I is (2.0-3.0):1; the molar ratio of triphenylphosphine to raw material I is (2.0-3.0) : 1; 1g raw material I adds 50-100mL toluene.

[0055] Take the synthesis of intermediate N-1 as an example:

[0056]

[0057] In a 250ml three-neck flask, under a nitrogen atmosphere, add 0.01mol 1-aniline, 0.012mol 2-bromobiphenyl, 0.03mol potassium...

Embodiment 2

[0075] Embodiment 2: the synthesis of compound 6:

[0076]

[0077] In a 250mL three-neck flask, under a nitrogen atmosphere, add 0.01mol of intermediate M-1, 0.012mol of intermediate N-1, 0.03mol of potassium tert-butoxide, 1×10 -4 molPd2 (dba) 3 , 1×10 -4 mol tri-tert-butylphosphine, 150ml toluene, heated and refluxed for 12 hours, took a sample point plate, and the reaction was complete; naturally cooled, filtered, and the filtrate was rotary evaporated, and passed through a silica gel column to obtain compound 9; elemental analysis structure (molecular formula C 54 h 41 N 3 ): theoretical value C, 88.61; H, 5.65; N, 5.74; test value: C, 88.62; H, 5.65; N, 5.73. ESI-MS(m / z)(M + ): The theoretical value is 731.33, and the measured value is 731.66.

Embodiment 3

[0078] Embodiment 3: the synthesis of compound 18:

[0079]

[0080] The preparation method of compound 18 is the same as Example 2, and the difference is that intermediate M-1 is replaced by intermediate M-2, intermediate N-2 replaces intermediate N-1; elemental analysis structure (molecular formula C 66 h 49 N 3 ): theoretical value C, 89.66; H, 5.59; N, 4.75; test value: C, 89.67; H, 5.59; N, 4.74. ESI-MS(m / z)(M + ): The theoretical value is 883.39, and the measured value is 883.57.

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Abstract

The invention belongs to the technical field of semiconductors, and particularly relates to an organic electroluminescent device and an application thereof. The organic electroluminescent device comprises a cathode reflection electrode layer and an ITO anode layer; at least one organic thin film layer is arranged between the cathode reflection electrode layer and the ITO anode layer, and the organic thin film layer contains a compound taking triaminobenzene as a core; the structure of the compound taking triaminobenzene as the core is shown as a general formula (1). The compound takes pyromellitic benzene as a core, has relatively high glass transition temperature and molecular thermal stability, proper HOMO and LUMO energy levels and higher Eg, and can effectively improve the photoelectric property of an OLED device and prolong the service life of the OLED device through device structure optimization.

Description

technical field [0001] The invention belongs to the technical field of semiconductors, and in particular relates to an organic electroluminescent device and its application. 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. The OLED light-emitting device is like a sandwich structure, including electrode material film layers and organic functional materials sandwiched between different electrode film layers. Various functional materials are superimposed on each other according to the application to form an OLED light-emitting device. OLED light-emitting devices are current devices. When a voltage is applied to the electrodes at both ends, and the positive and negative charges in the organic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/54H01L51/50H01L51/52
CPCH10K85/633H10K50/15H10K50/826
Inventor 陈海峰李崇张兆超唐丹丹庞羽佳
Owner JIANGSU SUNERA TECH CO LTD
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