Pyridine-fluorene organic electrophosphorescence main body luminescent material and preparation method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING UNIV OF POSTS & TELECOMM
- Publication Date
- 2013-03-20
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 Figure 2 Figure 3
Abstract
Description
technical field
[0001] The invention specifically relates to a preparation method based on substituting the 9-hydroxyl group of 9-hydroxyl-9-(2-pyridyl)fluorene with an aromatic ring to make it functional, and relates to the steps and raw materials used in the preparation process of these materials. Background technique
[0002] Since Deng Qingyun reported the organic light-emitting diodes with high brightness and low voltage and sandwich structure in 1987, organic light-emitting diodes, as the next generation flat panel display and solid-state lighting technology, have been highly valued by the majority of scientific workers and greatly appreciated by industrial elites. Research enthusiasm. Compared with displays made of inorganic materials, organic electroluminescent display devices have many advantages beyond their reach, such as: wide source of materials, low energy consumption, light weight, small size, simple manufacturing process, high contrast, wide viewing angle, an...