The Design And Synthesis Of Several Simple Sensitizingdyes

Along with the increasingly global energy demand, the development of renewable energy become the fundamental way out for people to solve the energy problem. In these field such as economic, environmental protection, sustainable development and so on, solar energy has significant advantages, and it’s the most broad prospect,so that research on this field has a profound meaning, because it will ease today’s society increasingly nervous energy crisis.This paper first sum up the development and synthetic methods of the sensitizer dyes which have D-Π-A structure, and on the basis of reference, use Ullmann reaction, Heck reaction, Witting reaction, and Knoevenagel condensation reaction, designed and synthesized several simple sensitization solar cell dyes which have D-Π-A structure,and trying to adjust the properties of different substituents, to change the dyes’ optical effect, explore the the relationship of dye absorption spectra and the molecular structure, so that to design high efficiency sensitizer dyes. The structure was characterized,and was measured using UV-VIS Spectrophotometer.The main progressesare as follows: Ⅰ. With triphenylamine as the starting material, synthetic4-(diphenylamino)benzaldehyde, further use this intermidate to halogenation, then finally reached with acetic acid to Knoevenagel condensation reaction, synthetic target compound1,2and3. Ⅱ. With carbazole as raw material, through the Ullmann reaction to obtain United aromatic compounds, further synthetic compounds4.Ⅲ. With4-(diphenylamino)benzaldehyde as raw material, in its registration use methoxyl replaced, further synthetic compounds5. Ⅳ. With4-(bis(4-iodophenyl)amino)benzaldehyde as raw material, in its registration use phenoxyl replaced, further synthetic compounds6.