| abstract |
The invention provides a fluorene spiro triphenylamine compound, an organic electronic device, a display device or an electronic device. The fluorene spiro triphenylamine compound is excellent in film-forming property and thermal stability by introducing a rigid structure of fluorene spiro triphenylamine, and can be used for preparing Organic electroluminescent devices, organic field effect transistors and organic solar cells. In addition, the fluorene spirotriphenylamine compound of the present invention can be used as a constituent material of a hole injection layer, a hole transport layer, a light emitting layer, an electron blocking layer, a hole blocking layer or an electron transport layer, which can reduce the driving voltage and improve the efficiency and brightness. and life expectancy, etc. More importantly, the fluorene spirotriphenylamine compound of the present invention can effectively isolate the donor and acceptor groups, so it is an ideal framework for constructing thermally activated delayed fluorescent materials. The preparation method of the fluorene spirotriphenylamine compound of the invention is simple, the raw materials are easily obtained, and the development requirements of industrialization can be met. |