酞菁铜衍生物在酞菁铜氧化铁纳米粒子交替LB膜中的分子取向  

Molecular Orientation of Copper Phthalocyanine Derivative in Copper Phthalocyanine-Fe_2O_3 Nanoparticles Alternating LB Films

作　　者：霍丽华[1,2] 李薇[1] 逯乐慧[1] 席时权[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022 [2]黑龙江大学化学化工学院,哈尔滨150080

出　　处：《光谱学与光谱分析》2001年第2期224-226,共3页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金;黑龙江省青年基金

摘　　要：通过Langmuir Blodgett技术制备了酞菁铜 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。Copper phthalocyanine-Fe 2O 3 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 Fe 2O 3 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.

关 键 词：分子取向 酞青铜衍生物 纳米氧化铁 LB膜 紫外-可见光谱 半导体材料 

分 类 号：TN304.52[电子电信—物理电子学] O484.4[理学—固体物理]