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Organometallic complex and organic photoelectric element containing same

An organic metal and complex technology, applied in the direction of palladium organic compounds, platinum group organic compounds, platinum group organic compounds, etc., can solve the problems of expensive iridium metal and insufficient crustal content, and achieve excellent luminescence performance, reduced lighting voltage, Improve the effect of energy transmission

Pending Publication Date: 2021-06-11
ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD +1
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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. The application of iridium metal compound to commercial OLED materials has become the mainstream, but Iridium metal is very expensive and insufficient in the earth's crust, and an organometallic complex is needed to replace the iridium metal complex to expand the alternatives for OLED light-emitting materials

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Embodiment 1: the synthesis of compound 1

[0089]

[0090] (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 85%), LC-MS, 652.3.

[0091] (2) Under nitrogen atmosphere, put S-1 (10 mmol), K 2 PtCl 4 (10 mmol), acetic acid (8 ml), heated to reflux for 3 days. After cooling down to room temperature, a yellow solid was obtained by filtration, and purified and separated on a silica gel column with petr...

Embodiment 2

[0092] Embodiment 2: the synthesis of compound 2

[0093]

[0094] The synthesis steps of compound 2 are similar to those of compound 1, and the yield of the final metal complex is 78%. LC-MS: theoretically 1033.43, measured: 1033.4; elemental analysis C: 68.53; H: 5.75; N: 2.71; measured: C :68.51; H:5.73; N:2.72.

Embodiment 3

[0095] Embodiment 3: the synthesis of compound 3

[0096]

[0097] The synthesis steps of compound 3 are similar to those of compound 1, and the yield of the final metal complex is 73%. LC-MS: theoretically 944.37, measured: 944.4; elemental analysis C: 74.96; H: 6.29; N: 2.96; measured: C :75.02; H:6.36; N:2.94.

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Abstract

The invention provides an organometallic complex and an organic photoelectric element containing the same, and particularly relates to an organic electroluminescent diode. The structure of the organometallic complex is as shown in formula (I) which is described in the specification. In the formula (I), M is selected from platinum (Pt) and palladium (Pd). The detailed information of the organometallic complex and the organic photoelectric element can be understood through specific description in the invention. According to the organometallic complex provided by the invention, an OLED device with high efficiency and long service life can be obtained, and a luminescent spectrum is between 490 nanometers and 750 nanometers, which indicate that the organometallic complex shows application potential in the field of green-light to red-light OLEDs. The platinum and palladium metals are rich in the earth crust, can replace the rare metal iridium to form the sustainable organometallic complex, and good commercial application prospects are obtained.

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): C07F15/00C09K11/06H01L51/54H01L51/50
CPCC07F15/0086C07F15/006C09K11/06C09K2211/185H10K85/341H10K85/346H10K50/11
Inventor 王子兴夏蓉蓉赵晓宇
Owner ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD
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