Arylamine compound and organic luminescent device thereof
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A technology of organic light-emitting devices and compounds, which is applied in the field of organic photoelectric materials, can solve problems such as reduced efficiency, and achieve the effects of increasing recombination rate, improving light extraction efficiency, good luminous efficiency and life performance
Inactive Publication Date: 2018-06-08
CHANGCHUN HYPERIONS TECH CO LTD
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In addition, for conventional OLED devices, due to the total emission at the interface between the ITO film and the glass substrate and the interface between the glass substrate and the air, the light emitted to the outside of the OLED device accounts for about 20% of the total light-emitting layer of the organic material film. , the remaining about 80% of the light is mainly confined in organic material films, ITO films and glass substrates in the form of guided waves, and finally the light extraction efficiency of conventional OLED devices is about 20%, and the efficiency is greatly reduced
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Embodiment 1
[0065] [Example 1] Synthesis of Compound 1
[0066]
[0067] Step1: Under the protection of nitrogen, add 2,7-dibromo-9-phenyl-9H-carbazole (3.37g, 8.4mmol), 2-biphenylboronic acid (1.82g, 9.2mmol), tetratriphenyl Palladium phosphine (0.09g, 0.08mmol), sodium carbonate (2.67g, 25.2mmol), 60mL of toluene, 20mL of ethanol and 20mL of distilled water were stirred at 120°C for 3h. After the reaction was finished, stop the reaction with distilled water, extract with ethyl acetate, and use MgSO 4 After drying, the solvent was distilled off under reduced pressure, and then purified by silica gel column chromatography to obtain Intermediate 1-1 (2.03 g, 51%).
[0068] Step2: Under nitrogen protection, add intermediate 1-1 (4.74g, 10mmol), 400mL of anhydrous dichloromethane, FeCl3 (8.11g, 50mmol) into the reactor, stir for 0.5h, then add 200mL of methanol to separate the organic layer, The solvent was removed in vacuo, followed by silica gel column chromatography to obtain Interme...
Embodiment 2
[0073] [Example 2] Synthesis of compound 2
[0074] According to the synthetic method of compound 1, compound 2 (3.04 g, 49%) was obtained.
[0075]
Embodiment 3
[0076] [Example 3] Synthesis of compound 5
[0077] According to the synthetic method of compound 1, compound 5 (2.62 g, 46%) was obtained.
[0078]
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Abstract
The invention provides an arylamine compound and an organic luminescent device thereof, and relates to the technical field of organic photoelectric materials. The arylamine compound is obtained by connecting substituted or un-substituted carbazole, benzothiophene and a thick derivative of benzofuran onto an arylamine main body, so that with cavity transmission ability is relatively strong, good thermal stability is good, good film-forming property is good and synthesis is simple and easy easy-to to-operate synthesis. The arylamine compound can be applied to the organic luminescent device as acovering layer of or a cavity transmission layer, so that the problem that carrier transmission in the organic luminescent device is unstable and light out-coupling efficiency is low in the organic luminescent device can be effectively solved; and the organic luminescent device has the advantages of being high in luminescent efficiency and long in service life.
Description
technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an aromatic amine compound and an organic light-emitting device thereof. Background technique [0002] In recent years, Organic Light Emitting Diode (OLED: Organic Light Emitting Diode) as a new and promising display technology has gradually entered people's field of vision. Compared with traditional display technology, it has significant advantages in voltage characteristics, luminous brightness, luminous efficiency, device weight, response speed and viewing angle, and because of its low cost potential, it has become the most potential panel display technology at present. Has a broad market prospect. [0003] Generally, an OLED adopts a layered or laminated structure, and a typical organic light-emitting device generally includes a cathode, an anode, an organic layer between the electrodes, and an organic layer outside the two electrodes. The organic ph...
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