Iridium complex, preparation method thereof, and luminescent devices prepared from iridium complex

A technology of iridium complexes and electroluminescent devices, which is applied in the field of light-emitting devices and organic electroluminescent devices, can solve problems such as efficiency roll-off and efficiency reduction, and achieve the effects of convenient design and production, stable chemical properties, and simple preparation methods

A technology of iridium complexes and electroluminescent devices, which is applied in the field of light-emitting devices and organic electroluminescent devices, can solve problems such as efficiency roll-off and efficiency reduction, and achieve the effects of convenient design and production, stable chemical properties, and simple preparation methods

CN106397340AInactive Publication Date: 2017-02-15AAC MICROTECH CHANGZHOU +1
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  • Iridium complex, preparation method thereof, and luminescent devices prepared from iridium complex
  • Iridium complex, preparation method thereof, and luminescent devices prepared from iridium complex
  • Iridium complex, preparation method thereof, and luminescent devices prepared from iridium complex

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The terms used in the present invention, unless otherwise specified, generally have the meanings commonly understood by those skilled in the art.

[0026] An iridium complex comprising three ligands, the ligands being 2,3-diphenylquinoxaline, 2,3-diphenylpyridin[2,3-b]pyrazine, 2, 3-Diphenylpyrazine[2,3-b]pyrazine, dibenzo[a,c]phenazine, dipyrido[3,2-a:2',3'-c]phenazine derivatives any of the. The 2,3-diphenylquinoxaline, 2,3-diphenylpyridin[2,3-b]pyrazine, 2,3-diphenylpyrazine[2,3-b]pyrazine, Dibenzo[a,c]phenazine, dipyrido[3,2-a:2',3'-c]phenazine derivatives selected from: any of the substituted.

[0027] The iridium complexes of the present invention have used iridium trichloride, ethylenediamine, 1,2-diphenylamine derivatives, bibenzoyl derivatives, phenanthrenequinone and 1,10-o-phenanthroline during the synthesis process. -5,6-dione,...

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Abstract

The invention relates to a ternary iridium complex with novel ligands. The ligands in the molecules of the iridium complex are 2,3-diphenylquinoxaline, 2,3-diphenyl pyridine[2,3-b]pyrazine, 2,3-diphenyl pyrazine [2,3-b]pyrazine, dibenzo[a,c]phenazine, and dipyrido [3,2-a:2',3' -c] phenazine derivatives. The novel iridium complex possesses high luminous efficiency, is stable in chemical properties, and is easy to purify; sublimation is easy to realize; and device performance is excellent. According to a preparation method, the molecular structures of the ligands are modified, so that the luminous intensity and efficiency of the iridium complex can be adjusted in a red light wave range, and convenience is provided for design and production of OELDs and lighting sources.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of organic electroluminescent devices, in particular to a class of iridium complexes, a preparation method thereof and a light-emitting device using the iridium complexes. [0003] 【Background technique】 [0004] Against the background of increasing global energy demand and worrying ecological environment, governments of various countries have vigorously developed sustainable energy-saving technologies and industries based on high technology. Organic electroluminescent devices (OLEDs) have attracted much attention because of their advantages such as wide viewing angle, high brightness, low energy consumption and flexible devices, and are known as the key technology that will dominate the future display world. In recent years, a large number of studies have shown that among many complexes of heavy metal elements, iridium complexes are considered to be the most ideal choice of phosphorescent materials ...

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Application Information

Patent Timeline
15 Feb 2017
Publication
CN106397340A
IPC
C07D241/42; C07D487/04; C07D401/14; C09K11/06; H01L51/54
CPC
C09K11/06; C07D241/42; C07D401/14; C07D487/04; H10K85/342; H10K50/11
Inventors
郑佑轩; 荆一铭