Use of sulfone compounds in organic electronic devices

By using specific sulfone compounds as phosphors or thermally activated delayed phosphors in organic electroluminescent devices, the problems of insufficient efficiency, lifetime, and voltage in existing technologies have been solved, achieving high-efficiency and stable device performance.

CN115244728BActive Publication Date: 2026-01-16UDC IRELAND
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Patent Information

Application Number
CN202180018027.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-03-02
Filing Date
2021-02-26
Publication Date
2026-01-16
Estimated Expiration
2041-02-26

AI Technical Summary

Technical Problem

Existing organic electroluminescent devices have shortcomings in terms of efficiency, lifetime and operating voltage, especially when using phosphors or thermally activated delayed phosphors, and existing materials have defects in terms of processability, solubility and oxidative stability.

Method used

Sulfone compounds with specific structures are used as phosphors, thermally activated delayed phosphors, host materials, electron transport materials, or hole transport materials to optimize device performance, improve device lifetime and efficiency, reduce operating voltage, and enhance the solubility and oxidation stability of materials.

Benefits of technology

It achieves high lifetime, good efficiency and low operating voltage for organic electroluminescent devices. The material has excellent color purity and processability and is suitable for stable performance over a wide temperature range.

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Abstract

The present invention relates to the use of compounds in electronic devices. The present invention also relates to novel compounds, in particular novel compounds for use in electronic devices, and to electronic devices comprising these compounds.
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Citation Information

Patent Citations

  • Organic material for electroluminescent device and electroluminescent device

    EP0652273A1

  • Spiro compounds and their application as electroluminescence materials

    EP0676461A2

  • Conjugated polymers with a spiro atom and their use as electroluminescent materials

    EP0707020A2

  • Polymers with spiro atoms and their use as electroluminescent materials

    EP0894107A1

  • A method of forming poly-(3-substituted) thiophenes

    EP1028136A2