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An electron-transporting xanthene derivative and its organic electroluminescent device

A technology of electron transport and electron transport layer, which is applied in the direction of electric solid-state devices, organic chemistry, luminescent materials, etc., can solve the problems of electron/hole migration mismatch, so as to improve electron mobility, reduce π conjugation degree, improve Effect of Intrinsic Color Purity

Active Publication Date: 2022-05-10
WUHAN SUNSHINE OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the basis of the existing technology, the present invention aims at industrialization, and aims to develop an OLED material with xanthene group as the core, solve the problem of electron / hole migration mismatch in the material layer, and then significantly improve the efficiency of the device. Comprehensive performance in terms of luminous efficiency, lifetime, color coordinates, etc.

Method used

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  • An electron-transporting xanthene derivative and its organic electroluminescent device
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  • An electron-transporting xanthene derivative and its organic electroluminescent device

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Embodiment Construction

[0062] Embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the invention and cannot be understood as limitations to the invention. If no specific technology or condition is indicated in the embodiment, it shall be carried out in accordance with the technology or condition described in the literature in the art or in accordance with the product specification. The reagents or instruments used without the manufacturer indicated are conventional products that can be obtained through commercial purchase.

[0063] Preparation of compound (6) of synthetic example 1

[0064]

[0065] S1. Put 2 - ([1,1 '- biphenyl] - 3-yl) - 4-chloro-6-phenyl-1,3,5-triazine (5.16g, 15mmol), sodium TERT butanol (2.88g, 30mmol), tri tert butyl phosphine tetrafluoroborate (0.044g, 0.15mmol) and toluene (30ml-50ml) into a 100ml three mouth bottle. Add Tri (dibenzylacetone) palladium (0.091g, 0.1mmol) under nitrogen atm...

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Abstract

The present invention discloses an electron-transporting xanthene derivative and its preparation method, application and organic electroluminescence device. The xanthene derivative has the parent core structure of the xanthene, and is modified by groups to form a D-A type compound. Its remarkable excellent fluorescence electroluminescence properties and electron transport properties, as a light-emitting guest material, electron transport material or hole blocking material of organic electroluminescence devices, with high quantum yield and electron mobility, can effectively solve the problem of device. The problem of unbalanced electrons and holes, emitting purer light color, has more significant advantages than similar compounds and compounds of the prior art in starting voltage, current efficiency, lifespan and thermal stability.

Description

technical field [0001] The invention relates to the field of photoelectric materials, in particular to an electron transmission heteroanthracene derivative and an organic electroluminescent device thereof. Background technology [0002] OLED, namely organic light emitting diode, is also known as electromechanical laser display. OLED has the characteristics of self luminescence. It adopts very thin organic material coating and glass substrate. When the current passes, the organic material will emit light. Moreover, the viewing angle of OLED display screen is large and can significantly save electric energy. Therefore, OLED is regarded as one of the most promising products in the 21st century. However, so far, OLED devices have not been popularized, and the efficiency of devices is an important reason restricting their popularization. [0003] In OLED devices, the design and combination of light-emitting layers play a key role in the performance of the device, which directly determ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D319/24C07D405/04C07D339/08C07D409/04C07D405/14C07D409/14C07D471/04C07D413/04C07D487/04C07D498/04C07D513/04C07D519/00C09K11/06H01L51/54
CPCC07D319/24C07D405/04C07D339/08C07D409/04C07D405/14C07D409/14C07D471/04C07D413/04C07D487/04C07D498/04C07D513/04C07D519/00C09K11/06C09K2211/1059C09K2211/1029C09K2211/1044C09K2211/1092C09K2211/1033C09K2211/1037C09K2211/1048C09K2211/1051H10K85/654H10K85/657H10K85/6576H10K85/6572H10K85/6574
Inventor 穆广园庄少卿任春婷徐鹏
Owner WUHAN SUNSHINE OPTOELECTRONICS TECH CO LTD
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