| abstract |
The invention provides a series of symmetrical sulfone-containing wet-processing blue organic electroluminescence materials, which contain sulfones, substituted carbazoles, fluorenes, triphenylamines and their derivatives. The balance of transmission; increase the solubility of molecules by increasing the branching of alkyl chains, which is beneficial to wet processing and reduces production costs. This series of electroluminescent materials involves the field of electroluminescence, which can emit blue and dark blue fluorescence and can be applied in the fields of OLED lighting and OLED display. It has a strong electron acceptor and a weak electron donor, a large conjugated structure, and a twisted and partially rigid planar structure, which is beneficial to contain the intermolecular force, improve the stability of the device, and obtain high-level fluorescent quantum efficiency and blue light materials. |