Compound containing heptazine-phenoxazine unit and application of compound

A technology of phenoxazine and compounds, applied in the field of organic electroluminescent devices, can solve the problems of increasing the difficulty of process manufacturing, high equipment cost, unfavorable production of OLED panel factories, etc.

Inactive Publication Date: 2018-12-07
AAC TECH NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The second technical shortcoming is that the current host material based on HAP-3MF is an electron-biased host material or light-emitting material, and these materials need to be used together with another hole-biased host material at the same time. The OLED designed in this way The hole and electron carriers in the light-emitting layer of the device will be more balanced. This technology of simultaneous evaporation of two materials not only results in high equipment costs, but also increases the difficulty of process manufacturing, which is not conducive to the production of OLED panel factories.

Method used

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  • Compound containing heptazine-phenoxazine unit and application of compound
  • Compound containing heptazine-phenoxazine unit and application of compound
  • Compound containing heptazine-phenoxazine unit and application of compound

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below. However, those of ordinary skill in the art can understand that in each implementation manner of the present invention, many technical details are proposed in order to enable readers to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed by each claim of the present invention can also be realized.

[0041] compound

[0042] The specific embodiment of the present invention provides a compound containing heptazine ring-phenoxazine unit, which has the structure shown in general formula (I):

[0043]

[0044] Among them, X 1 is C or Si; X 2 is N or B; A 1 、A2 、A 3 each independently selected from an aryl group, a condensed ring group, a group containing...

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Abstract

The invention relates to the technical field of organic electroluminescence devices and discloses a compound containing a heptazine-phenoxazine unit and application of the compound in devices. The compound disclosed by the invention has a structure represented by a general formula (I) (shown in the description). The compound based on a heptazine-phenoxazine skeleton has a hole transportation performance extremely matched with electronic transportation performance and is particularly suitable for being taken as a near-infrared luminescent material to be applied to the fields of OLED and the like.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent devices, in particular to a compound containing a heptazine ring-phenoxazine unit and its device application. Background technique [0002] Since 1987, C.W.Tang et al. of Kodak reported for the first time that Alq was prepared by vacuum thermal evaporation method. 3 Since the double-layer device structure of light-emitting materials, organic electroluminescent materials have received great attention. For example, Samsung's Galaxy series mobile phones and S6 are all OLED mobile phones. In 2017, Apple has also adopted OLED display configurations on its mobile phones. [0003] Organic electroluminescence can be divided into fluorescence and phosphorescence electroluminescence. According to the spin quantum statistical theory, the formation probability ratio of singlet excitons and triplet excitons is 1:3, that is, singlet excitons only account for 25% of the "electron-hole pairs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/16C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D487/16C09K2211/1033C09K2211/1059C09K2211/1007C09K2211/1011H10K85/657H10K85/6572H10K50/11
Inventor 谢再锋
Owner AAC TECH NANJING
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