Containing Ruthenium Photosensitive Dye Synthesis, Characterization And Application In Dye-sensitized Solar Cells

Since entering into 21 century,people put forward with electrical source more higher request.Solar cell is considered as a new energy sources with the advantages of widely application,cleanness and security.So it is regarded as most perfect cell. But it is restricted by high cost and low efficiency as common electrical source instead of existing cell.It also await to more research.This paper,which considers making the 1,10-phenanthroline-5,6-dione by pyridyl ruthenium(â…¡)of which has similar and more conjugated structure as material, has synthesized four photosensitive dyes which contain ruthenium(L1,L2,L3,L_中), and L1,L2,L3 have carboxyl group.The compound of ruthenium is the most perfect material for solar cell in virtue of possessing steady oxidation state and blaze state. The adsorbent effect of carboxyl on the most common base material of nano TiO₂ is the best.The compounds were characterized with IR,H-NMR,UV and proved that the photosensitive dyes are pure and their range of spectrum response achieves to visible light.The photosensitive dyes prove that they have the alterable oxidation state,good reversibility by cyclic voltmmograms and reach the need of cycle property with cell.Moreover,nano TiO₂ was prepared by sol-gel method,nano ZnO and nano ZnO doped with 1%Mn were synthesized by solid state reaction at low-heating temperature.They were used as film material with dye sensitize solar cell. The primary research to photoelectricity property of dye show the following results:1.As film material with nano TiO₂,L1,L2,L3 have the definite photoelectricity transition efficiency,because the three dyes have the carboxyl,which are easily adsorbed on nano TiO₂ surface;the photoelectricity transition efficiency of L_中is nearly zero,because the dye has no earboxyl,which are not nearly adsorbed on nano TiO₂ surface.2.As film material with nano ZnO,L1,L2,L3 do not have the photoelectricity transition efficiency,perhaps the three dyes are not nearly adsorbed on nano ZnO surface;there is the photoelectricity transition efficiency of L_中,may be the dye are easyly adsorbed on nano ZnO surface. 3.As film material with nano ZnO doped with 1%Mn,the photoelectricity transition efficiency of L_中is higher than the photoelectricity transition efficiency of L_中on nano ZnO film.This prove that it may improve the photoelectricity transition efficiency of dye sensitize solar cell by adjusting the constitute of nano ZnO.