|
Bibenzo[a, c]phenoxazine derivatives are very attractive organic photoelectric materials, with its electronrich and high redox activities. These compounds as a organic P type materials (hole transportation materials), have been widely used in electronic devices. Such as organic electroluminescent diode, organic fieldeffect transistor, etc.The paper states several aspacts of contents with Chapters:Chapter one, we summerize the application prospect of organic light emitting diode(OLED). Then we state the application of the white OLED device in details. And focusly introduce research progress of single-molecule white light materials.Chapter two, we find and anaylze the N-p-n-butyl-N’-p-methyl-7-p-n-butyl-bibenzo[a, c]phenoxazine, which is the byproduct of Ullmann reaction. Then we propose a new synthesis method based on Ullmann reaction, and we compare different facts of reaction such as reaction time, cataylst, alkalinity, etc. Then we synthesize several compounds with this method, and discuss the reasons of unsuccessful-synthesis compounds.Chapter three, we mainly research luminance properties of bibenzo[a, c]phenoxazine derivatives we synthesized in chapter two. We test the UV absorbance and emission spectrum first, then research the change of emission in different solvents. Finally, we try to change colour of the solution by control of the ratio of THF and H2O, in order to get a white light emission. Besides that, we also cultvate some compounds’single crystals and test the CV curve to prepare for the deepgoing research.Chapter four is the conclusion.
|