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Quinoxaline-fused dibenzosuberane based helicenes and organic light emitting diode element

A technology of quinoxaline fused dibenzocycloheptane helicene and light-emitting diodes, which is applied in the field of helicene derivative materials and organic light-emitting diode components, which can solve the problems of decreased stability and achieve good light emission Effects of efficiency and thermal stability, excellent fluorescent quantum effect and thermal stability

Inactive Publication Date: 2018-11-23
JUST ABOUT SHOWING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in addition to the matching of energy levels, the material selection of the organic light-emitting layer also needs to have a high thermal cracking temperature to avoid thermal cracking caused by high temperature, which will lead to a decrease in stability

Method used

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  • Quinoxaline-fused dibenzosuberane based helicenes and organic light emitting diode element
  • Quinoxaline-fused dibenzosuberane based helicenes and organic light emitting diode element
  • Quinoxaline-fused dibenzosuberane based helicenes and organic light emitting diode element

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Embodiment 1

[0040] Embodiment 1 quinoxaline fused dibenzocycloheptane helicene compound

[0041] According to the first embodiment of the present invention, a quinoxaline-fused dibenzoheptane helicene compound has the following general formula (1):

[0042]

[0043] Wherein, A has general formula (2), general formula (3a) or general formula (3b),

[0044]

[0045] Wherein, X is an oxygen atom, a sulfur atom, an amino group or -(CH 2 ) n , n is an integer from 0 to 2. R 1 and R 2 are independent hydrogen atoms, halogen atoms, general formula (4), general formula (5) or general formula (6),

[0046]

[0047] R 3 to R 15 One selected from independently hydrogen atom, halogen atom, cyano group, alkyl group, cycloalkyl group, alkoxy group, haloalkyl group, sulfanyl group, silyl group, alkenyl group, aryl group and amino group.

[0048]Here, the alkyl group is a substituted straight-chain alkyl group with 1 to 6 carbons, a straight-chained unsubstituted alkyl group, a substitut...

Embodiment 2

[0064] Embodiment 2 Organic Light Emitting Diode Element

[0065] Please refer to figure 1 , an organic light emitting diode device 100 disclosed according to the second embodiment of the present invention includes a first electrode layer 120 , a second electrode layer 140 and an organic light emitting unit 160 . Wherein, the first electrode layer 120 may be a transparent electrode material, such as indium tin oxide (ITO), and the material of the second electrode layer 140 may be metal, transparent conductor or other suitable conductive material. However, the first electrode layer 120 can also be metal, transparent conductor or other suitable conductive material, and the second electrode layer 140 can also be a transparent electrode material. Specifically, at least one of the first electrode layer 120 and the second electrode layer 140 of this embodiment is a transparent electrode material. In this way, the light emitted by the organic light emitting unit 160 can be emitted ...

Embodiment 3

[0076] Embodiment 3 Organic Light Emitting Diode Element

[0077] in addition, figure 2 It is a schematic cross-sectional view of an organic light emitting diode device 200 disclosed in the third embodiment of the present invention. The OLED device 200 is similar to the OLED device 100 , so the same components have the same features and functions, and are denoted by the same component symbols here, and will not be described again.

[0078] Please refer to figure 2 , and in this embodiment, the organic light emitting unit 160 may include a hole transport layer 162 , an organic light emitting layer 166 and an electron transport layer 168 , and the organic light emitting layer 166 is disposed between the hole transport layer 162 and the electron transport layer 168 .

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Abstract

A quinoxaline-fused dibenzosuberane based helicene has a structure of general formula (1), wherein A is with a structure of general formula (2), general formula (3a) or general formula (3b); X is an oxygen atom, sulfur atom, amino group, or -(CH2)n, wherein n is 0, 1, or 2; R1 and R2 are independently selected from the group consisting of a hydrogen atom, a halogen atom, general formula (4), general formula (5) and general formula (6); and R3 to R15 are independently selected from the group consisting of a hydrogen atom, a halogen atom, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, a haloalkyl group, a thioalkyl group, a silyl group, an alkenyl group, an aryl group, and an amino group.

Description

technical field [0001] The invention relates to a light-emitting material and a light-emitting element, in particular to a helicene derivative material and an organic light-emitting diode element. Background technique [0002] With the advancement of electronic technology, light-weight and high-efficiency flat-panel display devices are also booming. Organic electroluminescent devices are expected to become the mainstream of next-generation flat-panel display devices due to their advantages such as self-illumination, no viewing angle limitation, power saving, easy manufacturing process, low cost, high response speed, and full color. [0003] Generally, an organic electroluminescence device includes an anode, an organic light emitting layer and a cathode. When a direct current is applied to the organic electroluminescence device, holes and electrons are injected into the organic light-emitting layer from the anode and the cathode respectively, and the potential difference cau...

Claims

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Application Information

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IPC IPC(8): C07D241/38C07D409/04C07D405/04C09K11/06H01L51/50H01L51/54
CPCC07D241/38C07D405/04C07D409/04C09K11/06C09K2211/1088C09K2211/1092C09K2211/1007C09K2211/1014C09K2211/1044H10K85/615H10K85/6576H10K85/6574H10K85/6572H10K50/11H10K85/00
Inventor 李真成
Owner JUST ABOUT SHOWING CO LTD
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