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Novel boron-containing organic compound and application thereof
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The technology of a compound and a compound of the general formula is applied in the application field of the compound in the organic electroluminescence device, and the effect of prolonging the service life of the device, excellent service life and easy availability of raw materials is achieved.
Pending Publication Date: 2022-05-13
BEIJING ETERNAL MATERIAL TECH
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[0007] Existing organic electroluminescent materials still have a lot of room for improvement in terms of luminescent performance, and the industry urgently needs to develop new luminescent material systems to meet commercial needs
Method used
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[0142] Heating was stopped, and after cooling to room temperature, 500 ml of water was added and stirred for 10 min. A large amount of white solid was precipitated. Suction filtration and column chromatography yielded 30.2 g of white solid.
[0143] Synthesis of Intermediate M5-2:
[0144] At room temperature, M5-1 (43.4g, 100mmol), 3,6-di-tert-butylaniline (90g, 320mmol), Pd 2 (dba) 3 (2.8g, 3mmol), s-Phos (1.2g, 3mmol), sodium tert-butoxide (33.6g, 350mmol), and xylene (1200ml) were added to a 2L single-necked bottle...
Embodiment approach
[0184] The OLED includes a first electrode and a second electrode, and a layer of organic material between the electrodes. The organic material can in turn be divided into regions. For example, the organic material layer may include a hole transport region, a light emitting layer, and an electron transport region.
[0185] In particular embodiments, a substrate may be used either below the first electrode or above the second electrode. The substrates are all glass or polymer materials with excellent mechanical strength, thermal stability, water resistance and transparency. In addition, a thin-film transistor (TFT) may be provided on a substrate for a display.
[0186] The first electrode may be formed by sputtering or depositing a material used as the first electrode on the substrate. When the first electrode is used as the anode, oxide transparent conductive materials such as indiumtinoxide (ITO), indiumzincoxide (IZO), tin dioxide (SnO2), zinc oxide (ZnO) and any comb...
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PUM
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Abstract
The invention relates to a compound and application thereof. The compound has a structure as shown in a formula (1). According to the compound provided by the invention, N-atom-containing substituted aryl groups are introduced into a B-N resonance type material, and the N-atom-containing substituted aryl groups are substituted on an aromatic ring directly connected with a central B atom and a central N atom. When the compound disclosed by the invention is used in the organic electroluminescent device, especially a luminescent layer material, the carrier transport balance in the device can be effectively improved, so that the device is ensured to obtain excellent effects of high luminous efficiency and low starting voltage.
Description
technical field [0001] The invention relates to a boron-containing organic material, which belongs to the technical field of organic light-emitting materials, and also relates to the application of the compound in organic electroluminescent devices. Background technique [0002] The main way for people to obtain information is through vision, so display devices are very important in the process of human interaction with information. Organic light-emitting diodes (OLEDs) have become one of the mainstream display devices due to their many advantages such as flexibility, self-luminescence, high contrast, large size, and low power consumption. [0003] Among them, the red light and green light dyes of the three primary colors generally contain heavy atoms such as Ir, Pt, etc., and can theoretically achieve 100% internal quantum efficiency, high electroluminescence efficiency, and low power consumption. Shows the mainstream of the device. However, the chromaticity and lifetime ...
Claims
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Application Information
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