Anthracene compounds, organic light-emitting diode devices

A compound and anthracene-based technology, applied in the field of organic electroluminescence, can solve problems such as obvious crystallinity and aggregation tendency, affect device performance, and poor batch stability, achieve good hole transport ability, improve luminous efficiency, and reduce preparation costs. cost effect

Active Publication Date: 2022-08-05
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 compounds, organic light-emitting diode devices
  • Anthracene compounds, organic light-emitting diode devices
  • Anthracene compounds, organic light-emitting diode devices

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

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

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

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

[0125] (3) A layer of HTL layer thin film, namely VNPB, was spin-coated on the hole injection layer, and the thin film was baked at 200° C. for 30 min after spin-coating.

[0126] (4) Dissolve the dendrimer compound with solvent o-xylene and prepa...

Embodiment 1

[0129] The organic light-emitting diode device 1 is prepared according to the structure and preparation method of the organic light-emitting diode device by using the compound M1 as the material of the light-emitting layer.

Embodiment 2～6

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

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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 in formula I. The present invention provides a blue fluorescent unit that emits light through a TTA (triplet triplet electron annihilation) luminescence mechanism as a core (guest material unit), a flexible non-conjugated side chain L as a connecting unit, an arylamine group or a hetero The arylamine-based structure (main structural unit) is used as the terminal anthracene compound. The anthracene compound has good hole transport ability after the coordination between the host material unit, the linking unit L and the guest material unit, and is suitable for preparing an OLED device by a solvent processing method.

Description

technical field [0001] The present 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 prepared by vacuum evaporation, the production cost of this method is high, and it is difficult to prepare large-sized panels. However, relatively simple preparation methods such as spin coating, screen printing, and inkjet printing through solution processing 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, ...

Claims

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Application Information

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Patent Type & Authority Patents(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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