Materials for organic electroluminescent devices
By using indobenzocarbazole derivatives as matrix and electron transport materials, the efficiency, lifetime, and operating voltage of organic electroluminescent devices have been improved, solving the problems of low efficiency, short lifetime, and difficult production in the prior art, and achieving more efficient and stable device performance.
Patent Information
- Application Number
- CN201510574449.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2009-05-29
- Filing Date
- 2010-05-03
- Publication Date
- 2016-01-06
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing organic electroluminescent devices have shortcomings in terms of efficiency, lifetime and operating voltage, especially in the case of blue light emission, and existing materials are prone to crystallization during the vapor deposition process, which makes production difficult.
Indobenzocarbazole derivatives are used as matrix materials, electron transport materials or hole transport materials. The performance of devices is improved by compounds with specific structures, including the use of compounds of general formula (1) to improve electron injection efficiency and reduce operating voltage.
It improves the power efficiency and stability of organic electroluminescent devices, extends their lifespan, and reduces crystallization problems during the vapor deposition process, making them suitable for large-scale production.