Fluorescent material and applications thereof

A technology of fluorescent materials and light-emitting layers, applied in the field of fluorescent materials, can solve the problems of fluorescent quantum efficiency aggregation-induced quenching and other problems of fluorescent materials, and achieve the effects of long service life, inhibition of aggregation, and high fluorescent light-emitting efficiency

Inactive Publication Date: 2020-05-12
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At present, the most commonly used OLED materials with deep blue light emission, high efficiency and long life are fluorescent materials based on anthracene and pyrene nuclei, but usually high-efficiency fluorescent materials need to have a rigid structure. Therefore, fluorescent materials are easy to aggregate and cause aggregation induction of fluorescence quantum efficiency. Quenched

Method used

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  • Fluorescent material and applications thereof
  • Fluorescent material and applications thereof
  • Fluorescent material and applications thereof

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Embodiment Construction

[0039] A fluorescent material involved in the present invention and technical solutions for its application will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0040] One embodiment of the present invention provides a fluorescent material, the molecular structure of which includes a fluorene structure, wherein a luminescent nucleus is connected to the side chain of the fluorene structure; specifically, the compound adopts the following general molecular structure formula:

[0041]

[0042] At least one of the L1 structure and the L2 structure in the formula is a structure with a TTF-type luminescent nucleus, wherein the luminescent nucleus preferably includes the following three types:

[0043]

[0044] That is to say, there are several implementations of the L1 structure and the L2 structure, one of which is that only one of the two uses a TTF-type luminescent core structure, and the other does not; for example, the ...

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Abstract

The invention provides a fluorescent material and applications thereof, wherein the compound molecular structure of the fluorescent material comprises a fluorene structure, a luminescent core is connected to the side chain of the fluorene structure, the fluorescent material adopts the following molecular structural general formula defined in the specification, and at least one of the L1 structureand the L2 structure in the formula is a luminescent core structure. According to the fluorescent material provided by the invention, a novel molecular structure design is adopted, and the fluorescentluminous efficiency of the luminous core is not influenced while the aggregation among the luminous cores is inhibited.

Description

technical field [0001] The invention relates to the field of materials, in particular, a fluorescent material and its application. Background technique [0002] It is known that organic light-emitting diodes (organic lighting-emitting diodes, OLEDs) have active light emission, large viewing angle, fast response speed, wide temperature range, low driving voltage, low power consumption, high brightness, simple production process, light and thin, Moreover, it has the advantages of flexible display and other advantages, showing huge application prospects, and attracting the attention of scientific researchers and companies. [0003] At present, Samsung and LG have realized the application of OLEDs in mobile phones. With the continuous advancement of OLED technology in the two major fields of lighting and display, people pay more attention to the research on its core materials. An organic electroluminescent device with high efficiency and long life is usually the result of the o...

Claims

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Application Information

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IPC IPC(8): C07C13/567C07C211/61C07D213/06C09K11/06H01L51/50H01L51/54
CPCC07C13/567C07C211/61C07D213/06C09K11/06C09K2211/1007C09K2211/1011C09K2211/1014C09K2211/1029C07C2603/18C07C2603/24C07C2603/44C07C2603/50H10K85/622H10K85/615H10K85/631H10K85/633H10K85/654H10K50/11
Inventor 王彦杰
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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