Organic compound and use thereof

An organic compound and compound technology, applied in the field of organic electroluminescent materials, can solve problems such as increasing the economic cost of enterprises, and achieve the effects of reducing economic cost, improving optoelectronic performance, and reducing concentration quenching effect

Inactive Publication Date: 2017-03-01
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, almost all OLED light-emitting materials are phosphorescent materials, and most of these phosphorescent materials contain precious metals such as iridium and platinum, which greatly increases the economic cost of enterprises.

Method used

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  • Organic compound and use thereof
  • Organic compound and use thereof
  • Organic compound and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0025] Embodiment 1-5 synthetic compound 1-5

[0026]

[0027] At -78°C, carbazole bromide (18.5mmol) was dissolved in dry tetrahydrofuran, then a solution of n-BuLi (1.6M dissolved in n-hexane, 11.2mL, 18.5mmol) was added thereto, and the reaction was stirred at low temperature for 3h . The above reaction solution was added to a tetrahydrofuran solution of 9-fluorenone derivatives and stirred at room temperature for 24 h. The reaction solution was extracted with ethyl acetate, MgSO 4 Dry, filter and concentrate the resulting reaction without further purification.

[0028] The above unpurified reactant (14.8mmol), glacial acetic acid (100mL) and concentrated HCl (3.0mL) were reacted at 130°C for 5h. After stopping the reaction, the residue was washed several times with methanol and water, and the target product was obtained by column chromatography.

[0029]

[0030] In the general structural formula (I), R1, R2, R4, R5, R7, R8, R9, and R10 are all hydrogen, and R3 a...

Embodiment 6

[0049] Embodiment 6 uses compound 5 to prepare organic electroluminescent device, and the device structure is as follows figure 1 shown.

[0050] The specific device structure and thickness are shown in Table 1 below.

[0051] Table 1 Device Structure and Thickness

[0052]

[0053] Among them, Anode: anode, HIL: hole injection layer, HTL: hole transport layer, Emitt inglayers (EML): light emitting layer, ETL: electron transport layer, EIL: electron injection layer, Cathode: cathode.

[0054] Device fabrication method: firstly, HAT-CN and NPB are sequentially deposited on the transparent conductive film ITO, the light-emitting layer adopts dual-source co-evaporation of DSA and compound 5 (L5), the doping concentration of L5 is 5% (mass percentage concentration), and the electron transport The layer adopts dual-source co-evaporation of Alq3 and LiQ, then evaporates LiF, and finally evaporates the cathode Al; during the completion of a device preparation process, the vacuum...

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Abstract

The invention provides an organic compound. The organic compound is shown in the formula (I). The organic compound can be used to prepare a light-emitting layer of an organic light-emitting device.

Description

technical field [0001] The invention relates to the field of organic electroluminescent materials, in particular to an organic compound and its application. Background technique [0002] As a brand-new display technology, organic light-emitting diode (OLED) has unparalleled advantages in various performances of existing display technologies, such as full solid state, self-luminous, high brightness, high resolution, wide viewing angle, and response speed. Fast, thin, small size, light weight, flexible substrate, low voltage DC drive (3-10V), low power consumption, wide operating temperature range, etc. Because of its many advantages, it has broad application prospects in various fields, such as lighting systems, communication systems, vehicle displays, portable electronic devices, high-definition displays and even military fields. [0003] The efficiency of OLED devices is closely related to the device structure of OLEDs and organic light-emitting materials. Organic light-em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D471/10C09K11/06H01L51/54
CPCC09K11/06C07D471/10C09K2211/1029H10K85/624H10K85/6572
Inventor 任军张塨龚智豪
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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