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Transition metal complexes used as phosphorescent material, and preparation method and application thereof

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 the problem of small color adjustment range and achieve luminous efficiency High, easy-to-operate effect

Inactive Publication Date: 2018-12-18
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 material, and preparation method and application thereof
  • Transition metal complexes used as phosphorescent material, and preparation method and application thereof
  • Transition metal complexes used as phosphorescent material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The synthesis of iridium complex Ir10, the reaction equation is as follows:

[0038] (1) Synthesis of chlorine-bridged dimers

[0039]

[0040] (2) Target synthesis

[0041]

Embodiment 2

[0043] The synthesis of iridium complex Ir40, the reaction equation is as follows:

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

[0045]

[0046] (2) Target synthesis

[0047]

Embodiment 3

[0049] The synthesis of iridium complex Ir8, reaction equation is as follows:

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

[0051]

[0052] (2) Target synthesis

[0053]

[0054] The transition metals involved in the complexes prepared in Examples 1-3 are represented by Ir, and Pd or Pt can also be used to prepare transition metal complexes, and the reaction principle and process are the same as those of Ir.

[0055] like 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.

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Abstract

The invention belongs to the technical field of organic photoelectric materials, and especially relates to transition metal complexes used as a phosphorescent material, and a preparation method and anapplication thereof. The emitted light wavelength of a material can be adjusted in a large wavelength range by matching Z1 with Z2, and the wavelength of the emitted light can be further accurately adjusted by changing a hetero atom in a main ligand, so the electroluminescent material having a predictable luminescent color is obtained; the main ligand has the same skeletal structure, and only theposition of a functional group and the position and the type of the hetero atom in the main ligand are only adjusted, so the adjustment of the wavelength of the emitted light in a wide range from green light to deep red light is achieved; and the prepared complexes have a high luminous efficiency, and preparation methods of the luminescent materials with 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] The phenomenon of organic electroluminescence was first reported in 1963, but it was ignored due to its high voltage and low luminous efficiency. Until 1987, it was reported that OLED (Organic Light-Emitting Diode, English name Organic Light-Emitting Diode, OLED for short) device with multilayer structure appeared. Compared with traditional light-emitting diodes (LEDs) and liquid crystal displays (LCDs), OLED has the characteristics of self-illumination, clear and bright, light and thin, fast response, wide viewing angle, low power consumption, wide applicable temperature range, and simple manufacturing process. It meets the characteristics of "light, thin, small, colorful, economical, beautiful, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/54
CPCC09K11/06C07F15/0033C07F15/0086C09K2211/1096C09K2211/1088C09K2211/1092C09K2211/185C09K2211/1029H10K85/346H10K85/342
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