Study On Fabrication And Performance Of Self-Assembly Films Of Porphyin

With the rapid development of laser technology,more and more attention is paid to laser protection.Porphyrins as one of nonlinear optical materials are extensively concerned by the general public.In this dissertation,tetraphenyl porphyrin and tetra(para-hydroxyl-phenyl) porphyrin were synthesized by Alder reaction,and the corresponding metalloporphyrin complexes were prepared by acetate method.The structure of the synthesized complex were characterized by FT-IR and UV-Vis spectra.Self-assembly technique is used for preparing composite films on the surface of glass by alternating fabrication of cationic polyelectrolyte(PEI or DR) and anionic sulfonated metalloporphyrin.The third-order nonlinear optical properties of the prepared composite films and the corresponding solution were tested by Z-scanning technique,and the third-order nonlinear susceptibility x³ value of the samples were calculated.At the same time,the influence of polyelectrolyte on the third-order nonlinear optical properties was analysis.The results showed that the solution of porphyrin and PEI/ZnTHPP,PEI/ZnTPPS₄ multiplayer films exhibited third-order nonlinear effect,which shows good prospect.