| abstract |
Organic compound, application and preparation method, and organic electroluminescent device using the compound. The present invention relates to a compound and its application and preparation method, and also relates to an organic electroluminescence device using the compound. The compound has a structure represented by the following formula. The compound provided by the invention is centered on 9,9-spirobifluorene and its derivatives, and different electron-deficient groups are respectively introduced into its 2 and 4 positions to form a new electronic material, which is an organic light-emitting functional material with good performance. The application of the inventive compound to the device shows lower voltage and higher current efficiency. . |