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Borazine-based compound and application thereof in organic electronic device

A technology of organic electronic devices and compounds, applied in the field of new borazane-based compounds

Active Publication Date: 2015-01-14
ZHEJIANG BRILLIANT OPTOELECTRONIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the TADF material reported by Adachi et al. is limited to light blue, and darker blue or dark blue materials still need to be developed.

Method used

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  • Borazine-based compound and application thereof in organic electronic device
  • Borazine-based compound and application thereof in organic electronic device
  • Borazine-based compound and application thereof in organic electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0149] 1. Synthesis of Compounds F1-F4

[0150]

[0151] The general synthesis route, at room temperature (300K), the anion of carbazole reacts with cyanoborazine fluoride under nitrogen atmosphere for 16 hours. The resulting product was purified by column chromatography on silica gel and reprecipitated. Compounds were further purified by sublimation before measuring photoluminescence and electroluminescence spectra.

[0152] 2. Energy structure of compounds F1-F4

[0153] The energy structures of compounds F1-F4 can be obtained by quantum calculation, such as using TD-DFT (time-dependent density functional theory) through Gaussian03W (Gaussian Inc.). For specific simulation methods, please refer to WO2011141110. First, the semi-empirical method "Ground State / Semi-empirical / Default Spin / AM1" (Charge0 / Spin Singlet) is used to optimize the molecular geometry, and then the energy structure of the organic molecule is calculated by the TD-DFT (time-dependent density functional...

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Abstract

The invention relates to a novel borazine-based compound which at least comprises an electron donating group and an electron withdrawing group. The compound according to the invention has a large energy cap, and easily has relatively small delta (S1-T1), thus thermally activated delayed fluorescence (TADF) is easily realized. The invention further relates to a composition which comprises at least one compound according to the invention and at least one organic solvent. The invention further provides an organic electronic device and particularly relates to an organic light-emitting device which comprises one or more layers of organic functional films, wherein at least one layer of film comprises at least one compound according to the invention.

Description

Technical field: [0001] The present invention relates to a novel borazine-based compound, which contains at least one electron-donating group and one electron-withdrawing group, and its application in organic electronic devices, especially organic light-emitting devices, and the production of corresponding organic electronic devices methods and their applications in lighting and display technology and elsewhere. Background technique: [0002] Organic light-emitting devices, especially organic light-emitting diodes (OLEDs) (see TANG et al. Appl. Waiting to become the most promising next-generation display and lighting technology. In particular, they may form films from solutions by printing methods, such as inkjet printing (InkJet Printing), screen printing (Screen Printing) and other technologies, which can greatly reduce manufacturing costs, so it is especially suitable for large-screen displays and illuminators. is attractive. [0003] The performance of OLEDs based on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/05C09D7/12C09D11/03C09D11/38H01L51/00H01L51/54H10K99/00
CPCC09D7/63C09D11/03C09D11/38C09K11/06C07F5/05C09K2211/1022C09K2211/1096C09K2211/107C09K2211/185H10K85/649H10K85/656H10K85/342H10K50/11H10K50/00Y02E10/549Y02P70/50
Inventor 潘才法其他发明人请求不公开姓名
Owner ZHEJIANG BRILLIANT OPTOELECTRONIC TECH CO LTD