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Anthracene compound and organic light emitting diode device

A compound and anthracene-based technology, applied in the field of organic electroluminescence, can solve problems such as uncertain molecular weight, poor batch stability, and affecting device performance, and achieve the goals of definite structure and molecular weight, good batch stability, and reduced production costs Effect

Active Publication Date: 2021-02-05
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, thermally activated delayed fluorescence (TADF) small molecule light-emitting materials have obvious crystallinity and aggregation tendency; although polymer materials can have good solution processing properties, their molecular weight is uncertain and batch stability is slightly poor, which affects device performance.
[0004] Therefore, the existing OLED materials suitable for solution processing still need to be improved.

Method used

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  • Anthracene compound and organic light emitting diode device
  • Anthracene compound and organic light emitting diode device
  • Anthracene compound and organic light emitting diode device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0122]Preparation method of organic light emitting diode device:

[0123](1) First, clean the ITO substrate in the following order: 5% KOH solution ultrasonic for 15 minutes, pure water ultrasonic for 15 minutes, isopropanol ultrasonic for 15 minutes, and oven drying for 1 hour; then the substrate is transferred to UV-OZONE equipment for surface treatment for 15 minutes. Transfer to the glove box immediately after finishing.

[0124](2) Spin-coating a layer of hole injection layer material, namely PEDOT:PSS film, on a clean ITO substrate, and then bake it at 230°C for 15 minutes. A layer of HTL film, namely VNPB, is spin-coated on the hole injection layer, and the film is baked at 200°C for 30 minutes after the film is spin-coated.

[0125](3) A layer of HTL film, namely VNPB, is spin-coated on the hole injection layer, and the film is baked at 200°C for 30 minutes after being spin-coated into a film.

[0126](4) Dissolve the anthracene compound with the solvent o-xylene and prepare a solution,...

Embodiment 1

[0129]Using compound M1 as the light-emitting layer material, the organic light-emitting diode device 1 is prepared according to the structure and preparation method of the above-mentioned organic light-emitting diode device.

Embodiment 2～6

[0131]Using the compounds M2 to M6 as the light-emitting layer material (M), according to the structure and preparation method of the above-mentioned organic light-emitting diode device, the organic light-emitting diode devices 2-6 are respectively prepared.

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Abstract

The invention relates to an anthracene compound and an organic light emitting diode device. The structure of the anthracene compound is shown as a formula I in the specification. The invention provides the anthracene compound which takes a blue fluorescence unit which emits light through a TTA (triplet state triplet state electron annihilation) luminescence mechanism as a core (guest material unit), takes a flexible non-conjugated side chain L as a connecting unit and takes an arylamino or heteroarylamino structure (host structure unit) as a tail end. After the host material unit, the connecting unit L and the guest material unit are matched, and the anthracene compound has good hole transport capability and is suitable for preparing an OLED device by a solvent processing method.

Description

Technical field[0001]The invention relates to the technical field of organic electroluminescence, in particular to an anthracene compound and an organic light emitting diode device.Background technique[0002]OLED devices can be constructed mainly in two ways, one is vacuum evaporation and the other is solution processing. Although a large number of OLED devices are currently manufactured by vacuum evaporation method, the production cost prepared by this method is high, and it is difficult to prepare large-size panels. However, relatively simple preparation methods such as spin coating, screen printing, and inkjet printing are suitable for preparing large-area devices while reducing costs. According to research reports, the performance of some devices processed by solution has been comparable to that of devices processed by evaporation. OLED materials suitable for solution processing are the key to solution processing OLED devices.[0003]However, solution-processed luminescent material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/86C07D209/88C09K11/06H01L51/50H01L51/54
CPCC07D209/86C07D209/88C09K11/06C09K2211/1007C09K2211/1011C09K2211/1029H10K85/615H10K85/6572H10K50/11
Inventor 郑江波
Owner GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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