酞菁铜衍生物在酞菁酮—氧化铁纳米粒子交替LB膜中的分子取向

通过Langmuir-Blodett技术制备了酞菁酮－氧化铁纳米粒子交替LB膜，利用偏振紫外－可见光谱对酞菁铜衍生物在不同制膜条件下所制得的交替膜中的分子取向进行了研究。结果表明，在同一氧化铁溶胶亚相中，随着表面压的增大，或在相同的表面压下，随着亚相中氧化铁浓度的减小，酞菁铜分子在其复合LB膜中倾斜程度变大。

Molecular orientation of copper phthalocyanine derivative in copper phthalocyanine-Fe2O3 nanoparticles alternating LB films]

Copper phthalocyanine-Fe2O3 nanoparticles alternating thin films were fabricated by Langmuir-Blodgett technique. Molecular orientation of 4-(4'-benzyloxy phenyl sulfonyl)phenoxy]-tris-4-(2,4-di-t-phenoxy) phthalocyanine copper (II) in its alternating LB films, deposited at different conditions, was studied by polarized UV-Vis spectra. The tilt extent of the copper phthalocyanine molecule on its LB films increases with the surface pressure of the subphase increasing on the same subphase, or with Fe2O3 concentration decreasing at the same pressure. The orientation of the copper phthalocyanine derivative is important for the gas-sensing properties. The bigger the tilt extent of the phthalocyanine molecule is, the greater the sensitivity of the film is.