Iridium metal compound with deuterium-fluorine synergistic effect and photoelectric element containing iridium metal compound

A metal compound and deuterated technology, which is applied in the direction of indium organic compounds, platinum group organic compounds, electrical components, etc., can solve the problems of low operating voltage, short service life, high efficiency, etc. The effect of plating temperature

Pending Publication Date: 2021-04-30
ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since its invention at the end of the 1980s, organic electroluminescent devices have been used in industries, such as display screens such as mobile phones, but the current OLED devices are restricted from wider application due to factors such as low efficiency and short service life, especially large screen display
The commonly used organic guest materials are iridium metal compounds. At present, iridium metal compounds have become the mainstream in commercial OLED materials, but there are still some technical difficulties. For example, green OLEDs require high efficiency, long life, and lower operating voltage.

Method used

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  • Iridium metal compound with deuterium-fluorine synergistic effect and photoelectric element containing iridium metal compound
  • Iridium metal compound with deuterium-fluorine synergistic effect and photoelectric element containing iridium metal compound
  • Iridium metal compound with deuterium-fluorine synergistic effect and photoelectric element containing iridium metal compound

Examples

Experimental program
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Effect test

Embodiment 1

[0153] Synthesis of compound TM1-1

[0154]

[0155] The synthesis steps are similar to the general steps (1)-(3), wherein the yield of the (1) step is 82%, the yield of the (2) step is 92%, and the yield of the (3) step is 78% . The generated iridium metal compound TM1-1 was confirmed by LC-MS. Mass spectrum m / z, theoretical value: 858.3; found value: M+H, 859.2.

Embodiment 2

[0157] Synthesis of compound TM2-1

[0158]

[0159] The synthesis steps are similar to the general steps (1)-(3), wherein the yield of the (1) step is 84%, the yield of the (2) step is 93%, and the yield of the (3) step is 71% . The generated iridium metal compound TM2-1 was confirmed by LC-MS. Mass spectrum m / z, theoretical value: 1010.4; found value: M+H, 1011.3.

Embodiment 3

[0161] Synthesis of compound TM1-2

[0162]

[0163] Synthetic steps are similar to general steps (1)-(3), wherein the yield of (1) step is 82%, the yield of (2) step is 92%, and the yield of (3) step is 76% . The formed iridium metal compound TM1-2 was confirmed by LC-MS. Mass spectrum m / z, theoretical value: 858.3; found value: M+H, 859.2.

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Abstract

The invention belongs to the field of organic electroluminescence, and particularly relates to an iridium metal compound with a deuterium-fluorine synergistic effect and a photoelectric device containing the iridium metal compound. The structure of the iridium metal compound is shown as a structural formula I, R1 to R17 are partially or completely deuterated substituents, and at least one of R1, R2, R3, R6, R7, R8, R10, R11, R12, R14, R15 and R16 is a fluorine atom. The iridium metal compound has better thermal stability and lower evaporation temperature, and the energy transmission efficiency between a main body material and an iridium metal complex is remarkably improved, specifically, when the iridium metal compound is used as a light-emitting layer material of an organic light-emitting device, the current efficiency of the light-emitting device is improved, the driving voltage is reduced, the service life is obviously prolonged, and a good commercial prospect is achieved.

Description

technical field [0001] The invention belongs to the field of organic electroluminescence, and in particular relates to an iridium metal compound with deuterium-fluorine synergistic effect and a photoelectric element containing it. Background technique [0002] As a new type of display technology, OLED devices have self-illumination, wide viewing angle, low energy consumption, high efficiency, thinness, rich colors, fast response speed, wide applicable temperature range, low driving voltage, and flexible, bendable and transparent displays. The unique advantages of panels and environmental friendliness can be applied to flat panel displays and new generation lighting, and can also be used as LCD backlight. [0003] Since its invention in the late 1980s, organic electroluminescent devices have been used in industries, such as display screens such as mobile phones, but the current OLED devices are restricted from wider application due to factors such as low efficiency and short ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/54H01L51/50
CPCC07F15/0033C09K11/06C09K2211/185C09K2211/1029C09K2211/1033H10K85/40H10K85/342H10K50/11
Inventor 王子兴夏蓉蓉陈清泉吕伯彦吕良飞吴空物赵晓宇
Owner ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD
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