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Transition metal complexes used as phosphorescent materials as well as preparation method and application of transition metal complexes

A technology of transition metals and phosphorescent materials, applied in luminescent materials, platinum-based organic compounds, compounds containing elements of Group 8/9/10/18 of the periodic table, etc., can solve problems such as small color adjustment range

Inactive Publication Date: 2018-08-10
YANTAI XIANHUA OPTOELECTRONICS INST CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, in order to change the color of the emitted light, electron-donating groups and electron-withdrawing groups can be added to the ligands of the luminescent material to adjust the color of the emitted light, but this scheme has a small adjustment range for the color

Method used

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  • Transition metal complexes used as phosphorescent materials as well as preparation method and application of transition metal complexes
  • Transition metal complexes used as phosphorescent materials as well as preparation method and application of transition metal complexes
  • Transition metal complexes used as phosphorescent materials as well as preparation method and application of transition metal complexes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The synthesis of iridium complex Ir7, reaction equation is as follows:

[0044] (1) Synthesis of chlorine-bridged dimers

[0045]

[0046] (2) Target synthesis

[0047]

Embodiment 2

[0049] The synthesis of iridium complex Ir11, the reaction equation is as follows:

[0050] (1) Synthesis of chlorine-bridged dimers

[0051]

[0052] (2) Target synthesis

[0053]

Embodiment 3

[0055] The synthesis of iridium complex Ir9, the reaction equation is as follows:

[0056] (1) Synthesis of chlorine-bridged dimers

[0057]

[0058] (2) Target synthesis

[0059]

[0060] Such as figure 1 As shown, the structure of an organic electroluminescent device (OLED) includes a glass substrate 1, an anode layer 2, a hole injection layer 3, a hole transport layer 4, a light emitting layer 5, an electron transport layer 6, and an electron injection layer sequentially stacked and combined. layer 7 and cathode layer 8. The iridium phosphorescent material prepared by the present invention is applied in the light-emitting layer of the OLED, and Table 1 shows the composition of each layer of the OLED in application examples 1-3.

[0061] Table 1

[0062]

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Abstract

The invention belongs to the technical field of organic optoelectronic materials, and in particular relates to transition metal complexes used as phosphorescent materials as well as a preparation method and application of the transition metal complexes. The transition metal complexes can adjust the emission light wavelengths of materials within a larger wavelength range by means of combination ofZ1, Z2 and Z3, and main ligands further finely adjust the emission light wavelengths by using hetero atoms, so that the transition metal complexes have a great value for obtaining luminescent materials of various wavelengths. The complexes prepared by the method not only have high luminous efficiency, but also can adjust the emission light wavelengths within a wide range. The main ligands of the complexes have the same skeleton structures, and the large-scale adjustment of the emission light wavelengths from green light to red light can be realized by changing the positions of functional groups, the positions of the hetero atoms on the main ligands and the types of the hetero atoms. In addition, the preparation methods of the luminescent materials of different colors are basically the same, and are simple to operate.

Description

technical field [0001] The invention belongs to the technical field of organic photoelectric materials, and in particular relates to a class of transition metal complexes used as phosphorescent materials, a preparation method and applications thereof. Background technique [0002] Organic electroluminescent device (OLED), as a new generation of display technology, overcomes the shortcomings of the first generation of CRT displays, such as bulky, bulky, and high power consumption, and also overcomes the shortcomings of LCD displays such as small viewing angle, slow response speed, unusable at low temperature, and The lack of self-luminescence, its biggest breakthrough lies in the mechanical toughness of the material, low-temperature process and sandwich device structure, not only can obtain better visual effects than conductive structure LCD, but also can be applied on any thin and light substrate, with very Attractive application prospects, great development potential. [0...

Claims

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Application Information

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IPC IPC(8): C07F15/00C09K11/06H01L51/54
CPCC09K11/06C07F15/0033C07F15/006C07F15/0086C09K2211/185H10K85/341H10K85/346H10K85/342
Inventor 陈跃丰佩川胡灵峰杨阳王培祥王茂林张加运
Owner YANTAI XIANHUA OPTOELECTRONICS INST CORP LTD
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