Triazine-containing compound and organic light-emitting device thereof
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A technology of organic light-emitting devices and compounds, which is applied in the field of triazine-containing compounds and organic light-emitting devices, which can solve the problems of device performance degradation and achieve the effects of low driving voltage, prevention of intermolecular aggregation, and strong rigid structure
Active Publication Date: 2020-09-22
ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD
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[0004]
The hole mobility of the hole transport material in the device is generally much greater than the electron mobility of the electron transport material, which will cause a significant decrease in device performance
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Embodiment 1
[0056] Embodiment 1: the synthesis of compound 1-1
[0057] (1) Synthesis of intermediate 1-1-1
[0058]
[0059] Add 1-1-0 (0.8g, 1.18mmol), phenylboronic acid (0.17g, 1.42mmol), THF (30mL), potassium carbonate (2mol / L, 20mL), tetrakistriphenylphosphine palladium into a 250ml reaction flask (100mg), heated to reflux reaction overnight under nitrogen protection. Stop the reaction, remove THF, extract three times with dichloromethane, combine the organic phases, wash with water until neutral, separate the organic phases, add anhydrous magnesium sulfate to dry, suction filter, spin dry; use silica gel column chromatography to obtain solid (0.41 g, yield 83%). LC-MS: M / Z 420.11(M+H) + .
[0069] Embodiment 2: the preparation of compound 1-30
[0070] The method of compound 1-1 in Example 1 was used to obtain the target product compound 1-30 (1.56 g, yield 80.0%). LC-MS: M / Z 830.32(M+H) + .
Embodiment 3
[0071] Embodiment 3: the preparation of compound 1-63
[0072] The method of compound 1-1 in Example 1 was used to obtain the target product compound 1-63 (6.00 g, 76%). . LC-MS: M / Z921.32(M+H) + .
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Abstract
The invention discloses a triazine-containing compound and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. The triazine-containing compound has a structure as shown in a general formula I which is described in the specification, wherein Ar1, Ar2, Ar3 and Ar4 are independently selected from substituted or unsubstituted C6-C30 aryl andsubstituted or unsubstituted C2-C30 heteroaryl; X1-X6 are independently selected from a carbon atom or a nitrogen atom; L is one of a single bond and substituted or unsubstituted C6-C30 aryl; R1 is independently selected from a substituted or unsubstituted C1-C16 alkyl group, a substituted or unsubstituted C6-C30 aryl group, and a substituted or unsubstituted C2-C30 heteroaryl group. The triazinegroup has high glass transition temperature and electron mobility and relatively low energy level, and the carbazole heterocyclic group connected with the triazine group has an electron-rich conjugated system, so that the electron mobility is high and electron mobility is relatively good; the combination of the triazine group and the carbazole heterocyclic group serves as an electron transport layer or a hole blocking layer for a light-emitting device, so that driving voltage can be reduced, and the light-emitting efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to a triazine-containing compound and an organic light-emitting device thereof. Background technique [0002] Organic light emitting diode (Organic Light Emitting Diode, OLED) is a light-emitting device prepared by using electrons and holes to recombine light in organic thin films. High, with high contrast, pure color, almost no problem of viewing angle; (3) ultra-thin, composed of very thin organic material coating and matrix material, small in size and suitable for portable products; (4) power consumption Very small, environmentally friendly and energy-saving; (5) fast response speed, one thousandth of that of LCD; (6) wide operating temperature range, and can still display normally at -40°C. [0003] Organic charge transport materials are a class of organic semiconductor materials that can achieve controllable directional and ordered migration of carriers...
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