Organic electroluminescent material and device thereof

An unsubstituted, carbon-atom technology, applied in organic electroluminescent devices and compound formulations, has a novel carbazole triarylamine structure compound, in the field of organic electroluminescent devices, can solve the problem of low luminous efficiency, undisclosed, device driving voltage Advanced problems, to achieve the effect of good device performance, improved stability, and excellent electron transport performance

Active Publication Date: 2020-09-18
BEIJING SUMMER SPROUT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, its published device data shows that when used as a red light host material, the device driving voltage is very high
[0009] WO2010110553A2 discloses an organic optical device comprising an organic layer containing an organic compound of formula B: specifically discloses in many examples: but does not disclose that the fused ring carbazole unit is connected to quinone The published device data of oxazoline compounds shows that as a hole transport or hole injection layer, the device driving voltage is as high as 5v or more, and the corresponding luminous efficiency is also low

Method used

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  • Organic electroluminescent material and device thereof
  • Organic electroluminescent material and device thereof
  • Organic electroluminescent material and device thereof

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[0029] OLEDs can be fabricated on various substrates such as glass, plastic and metal. figure 1 The organic light emitting device 100 is shown schematically and non-limitatively. The drawings are not necessarily drawn to scale, and some layer structures in the drawings can also be omitted as needed. Device 100 may include substrate 101 , anode 110 , hole injection layer 120 , hole transport layer 130 , electron blocking layer 140 , light emitting layer 150 , hole blocking layer 160 , electron transport layer 170 , electron injection layer 180 and cathode 190 . Device 100 may be fabricated by sequentially depositing the described layers. The properties and functions of the various layers and exemplary materials are described in more detail in US Patent No. 7,279,704 B2, columns 6-10, the entire contents of which are incorporated herein by reference.

[0030] Each of these layers has more instances. For example, flexible and transparent substrate-anode combinations are disclo...

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Abstract

Disclosed are an organic electroluminescent material and a device thereof. The organic electroluminescent material is a novel triaryl amine-carbazole condensed ring-quinazoline compound. The compoundcan be used as a host material in an electroluminescent device and provides a better device performance.

Description

technical field [0001] The present invention relates to compounds for use in organic electronic devices, such as organic electroluminescent devices. More particularly, it relates to a compound with a novel carbazole triarylamine structure, an organic electroluminescence device and a compound formulation containing the compound. Background technique [0002] Organic electronic devices include but are not limited to the following categories: organic light-emitting diodes (OLEDs), organic field-effect transistors (O-FETs), organic light-emitting transistors (OLETs), organic photovoltaic devices (OPVs), dye-sensitized solar cells (DSSCs) , organic optical detectors, organic photoreceptors, organic field-effect devices (OFQDs), light-emitting electrochemical cells (LECs), organic laser diodes, and organic plasmonic light-emitting devices. [0003] In 1987, Tang and Van Slyke of Eastman Kodak reported a double-layer organic electroluminescent device that included an arylamine hol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D403/04C07D409/14C07D495/04C07D495/14C07D491/048C07D405/14C07D421/14C07D471/04C07F7/08C09K11/06H01L51/50H01L51/54
CPCC07D403/04C07D409/14C07D495/04C07D495/14C07D491/048C07D405/14C07D421/14C07D471/04C07F7/0816C09K11/06C09K2211/1007C09K2211/1011C09K2211/1014C09K2211/1029C09K2211/1044C09K2211/1088C09K2211/1092C09K2211/1096H10K85/622H10K85/615H10K85/6576H10K85/6574H10K85/6572H10K85/657H10K85/40H10K50/11Y02E10/549
Inventor 王乐邝志远夏传军
Owner BEIJING SUMMER SPROUT TECH CO LTD
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