Organometallic complex and organic photoelectric element containing the same

A technology of organic metals and complexes, applied in nickel organic compounds, electrical components, organic chemistry, etc., can solve the problems of insufficient crustal content and expensive iridium metal, and achieve excellent luminous performance, high current efficiency, and reduced lighting voltage Effect

Pending Publication Date: 2021-06-01
SHANGHAI FUTURE OPTOETECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, almost all the light-emitting layers in OLED components use the host-guest light-emitting system mechanism, that is, the host material is doped with guest light-emitting materials. The commonly used organic guest material is iridium metal compound. At present, the application of iridium metal compound to commercial OLED materials has become the mainstream. However, iridium metal is very expensive and is insufficient in the earth's crust. An organometallic complex is needed to replace the expensive iridium metal complex and expand the alternatives of OLED light-emitting materials.

Method used

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  • Organometallic complex and organic photoelectric element containing the same
  • Organometallic complex and organic photoelectric element containing the same
  • Organometallic complex and organic photoelectric element containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Embodiment 1: the synthesis of compound 1

[0068]

[0069] (1) Under a nitrogen atmosphere, S-1 (10 mmol) and S-2 (11 mmol) were completely dissolved in tetrahydrofuran / water (2:1, 80 ml) in a round bottom flask, and potassium carbonate ( 5 g), tetrakis(triphenylphosphine) palladium acetate (0.1 g), and the mixture was heated to reflux for 10-12 hours. After cooling down to room temperature, add acetic acid (2 ml) and stir for 1 hour, separate the upper tetrahydrofuran layer, filter it with diatomaceous earth, concentrate the solvent in vacuo, and use petroleum ether:ethyl acetate (20:1~2:1) as The eluent was purified and separated on a silica gel column to obtain S-3 (yield 80%), LC-MS, 524.2.

[0070] (2) Under nitrogen atmosphere, S-1 (10 mmol), nickel chloride (10 mmol), and acetic acid (8 ml) were heated under reflux in a round bottom flask for 3 days. After cooling down to room temperature, a yellow solid was obtained by filtration, and purified and separate...

Embodiment 2

[0071] Embodiment 2: the synthesis of compound 2

[0072]

[0073] The synthesis steps of compound 2 are similar to those of compound 1, and the yield of the final metal complex is 68%, LC-MS: theoretical 704.25, measured: 704.2; elemental analysis C: 74.91; H: 6.00; N: 3.97; measured: C :74.96; H:6.13; N:3.92.

Embodiment 3

[0074] Embodiment 3: the synthesis of compound 3

[0075]

[0076] The synthesis steps of compound 3 are similar to those of compound 1, and the yield of the final metal complex is 68%, LC-MS: theoretical 709.25, measured: 709.3; elemental analysis C: 74.39; H: 5.96; N: 3.94; measured: C :74.36; H:5.97; N:3.95.

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Abstract

The invention provides an organometallic complex and an organic photoelectric element containing the same, in particular an organic electroluminescent diode, the structure of the organometallic complex is shown as a formula (I) in the specification, wherein M is selected from one of nickel (Ni), copper (Cu), cobalt (Co), manganese (Mn) or lead (Pb); detailed information of the organometallic complex and the organic photoelectric element can be understood through the specific description provided by the invention. According to the organic metal compound disclosed by the invention, an OLED device with high efficiency and long service life can be obtained, the luminescent spectrum is between 490 nanometers and 750 nanometers, and the organic metal compound shows potential application on green to red OLEDs. Meanwhile, nickel (Ni), copper (Cu), cobalt (Co), manganese (Mn) or lead (Pb) and other metals are low in price and rich in earth crust, have the potential of replacing platinum, iridium, palladium and other precious metal organometallic complexes, and have good commercial application prospects.

Description

technical field [0001] The invention belongs to the field of organic optoelectronics, and in particular relates to an organic metal complex and an organic optoelectronic element containing it, in particular to an organic electroluminescent diode. Background technique [0002] As a new type of display technology, organic light-emitting diode (OLED) has self-illumination, wide viewing angle, low energy consumption, high efficiency, thin, rich colors, fast response, wide applicable temperature range, low driving voltage, and flexible The unique advantages of flexible and transparent display panels and environmental friendliness can be applied to flat panel displays and new generation lighting, and can also be used as LCD backlight. [0003] OLED luminescence is divided into two ways: fluorescence luminescence and phosphorescence luminescence. According to theoretical speculation, the ratio of the singlet excited state to the triplet excited state caused by the combination of ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/04C07F19/00C07D401/14C07F5/02C07D405/14C07D409/14C09K11/06H01L51/50H01L51/54
CPCC07F15/04C07D401/14C07F5/027C07D405/14C07D409/14C09K11/06C09K2211/187H10K85/331H10K50/11
Inventor 王志盛其他发明人请求不公开姓名
Owner SHANGHAI FUTURE OPTOETECH CO LTD
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