合成了3种具有不同烷基链长的半菁稀土金属配合物:四(1—苯基-3-四基-4-苯甲酰基吡唑啉酮-5)合镝(Ⅲ)酸-(E)-N-n烷基(n=16,12和4)-4-(2,4′-二甲氨基苯基)乙烯基吡啶。研究了它们的成膜(Langmuir-Blodgett。以下简称LB)性,膜的紫外可见光谱和膜的二阶非线性光学性质。稀土配合物引入明显改善了材料的成膜性质,并获得了增大的二阶非线性光学性质。 Three kinds of semi-cyanine rare earth metal complexes with different alkyl chains were synthesized: tetrakis (1-phenyl-3-tetramethyl-4-benzoylpyrazolone-5) E) -Nn alkyl (n = 16, 12 and 4) -4- (2,4’-dimethylaminophenyl) vinylpyridine. Their film formation (Langmuir-Blodgett, hereinafter referred to as LB) properties, UV-Vis spectra of films and second-order nonlinear optical properties of films were investigated. The introduction of rare earth complexes significantly improves the film-forming properties of the material and achieves increased second-order nonlinear optical properties.