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Transition metal complex used as phosphorescent material and preparation method and application thereof

A technology of transition metals and phosphorescent materials, applied in luminescent materials, compounds containing elements of group 8/9/10/18 of the periodic table, indium organic compounds, etc., can solve the problem of small color adjustment range

Inactive Publication Date: 2018-06-12
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 complex used as phosphorescent material and preparation method and application thereof
  • Transition metal complex used as phosphorescent material and preparation method and application thereof
  • Transition metal complex used as phosphorescent material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The synthesis of iridium complex Ir11, the 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 Ir7, 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 photoelectric materials, in particular to a transition metal complex used as a phosphorescent material and a preparation method and applicationthereof. According to complex, the emission wavelength of the material can be adjusted within a larger wavelength range by the combination of Z1, Z2 and Z3, and meanwhile the emission wavelength is further finely adjusted by a main ligand through heteroatom, which has significant value in obtaining luminescent materials with various kinds of wavelengths. According to the complex, not only is the obtained complex has high luminescent efficiency, but also the emission wavelength can be adjusted in a wide range. The main ligand of the complex has the same skeleton structure, and by changing the position of a functional group, the position of the heteroatom on the main ligand and the type of the heteroatom, the wide range adjustment ranging from green light to red light of the emission wavelength is achieved. In addition, preparation methods of the luminescent materials of different colors are basically the same, and the operation is simple.

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): C09K11/06C07F15/00H01L51/50
CPCC09K11/06C07F15/0033C09K2211/185H10K85/342H10K50/11H10K2102/00H10K2102/301
Inventor 陈跃丰佩川王培祥胡灵峰张国选张加运
Owner YANTAI XIANHUA OPTOELECTRONICS INST CORP LTD
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