Organic electroluminescence material with phenoxazine/thenoxazin type derivative and organic luminescent device
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- CHANGCHUN HYPERIONS TECH CO LTD
- Publication Date
- 2017-11-03
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of organic photoelectric materials, in particular to an organic electroluminescence material containing phenoxazine / thiaxazine derivatives and an organic light-emitting device thereof. Background technique
[0002] An organic electroluminescent device is composed of a light emitting layer and a pair of electrodes on both sides of the light emitting layer. When an electric field is applied between the two electrodes, electrons are injected from the negative electrode and holes are injected from the positive electrode. In the light-emitting layer, the electrons and holes recombine to form an excited state, and the energy generated when the excited state returns to the ground state emits light.
[0003] Organic electroluminescent materials have been developed for quite a long time, and fluorescent materials, as the first generation of light-emitting materials, are often used in the light-emitting layer. In add...