摘要
Two kinds of novel blue-emitting materials, anthracene-based derivatives, are synthesized by the Suzuki cou- pling reaction. It is worth noting that the maximum emission wavelengths of the two materials are 441 and 444 nm in tetrahydrofuran and 456 and 454 nm in film states, which are the typical blue fluorescence and the fluorescence quantum yields of them are 0.87 and 1.12 by using 9,10-diphenylanthracene （Фf = 0.90） as a calibration standard. The full width at half maximum of them are 56, 55 nm in solution, respectively, pre- senting good color purity. Both of them display superior thermal properties and electrochemical properties. Scanning electronic microscope results show that the films of two compounds are continuous, compact, and smooth after 100℃ for 3 h. These data indicate their potential to be prepared for high efficiency and long operation lifetime organic light-emitting diodes devices.
Two kinds of novel blue-emitting materials, anthracene-based derivatives, are synthesized by the Suzuki cou- pling reaction. It is worth noting that the maximum emission wavelengths of the two materials are 441 and 444 nm in tetrahydrofuran and 456 and 454 nm in film states, which are the typical blue fluorescence and the fluorescence quantum yields of them are 0.87 and 1.12 by using 9,10-diphenylanthracene （Фf = 0.90） as a calibration standard. The full width at half maximum of them are 56, 55 nm in solution, respectively, pre- senting good color purity. Both of them display superior thermal properties and electrochemical properties. Scanning electronic microscope results show that the films of two compounds are continuous, compact, and smooth after 100℃ for 3 h. These data indicate their potential to be prepared for high efficiency and long operation lifetime organic light-emitting diodes devices.
基金
supported by the National Natural Science Foundation(NNSF)of China(No.51101022)
the Science and Technology Research Projects of Shaanxi Province(No.2013K06-27)
