Adsorption dynamics of the N719 dye on nanoporous titanium oxides studied by resonance Raman scattering and Fourier transform infrared spectroscopy

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• 作者：Kaname Suto ; Akinori Konno ; Yoshimasa Kawata ; Shigeru Tasaka ; Atsushi Sugita ; ^{tasugit@ipc.shizuoka.ac.jp}
• 刊名：Chemical Physics Letters
• 出版年：2012
• 期刊代码：7_00092614
• 类别：ph
• 出版时间：21 May, 2012
• 卷：536
• 期：Complete
• 页码：45-49
• 文件大小：429 K

摘要

The adsorption dynamics of the (Bu₄N)₂[Ru(dcbpyH)₂(NCS)₂] (N719) dye on nanoporous TiO₂ films were examined. Resonant Raman scattering and Fourier transform infrared absorption spectroscopy were used to study TiO₂ thin films that had been sensitized in ethanol solutions for different immersion times. Our experimental results suggested that the N719 dyes were anchored to the surface of nanoporous TiO₂ through bidentate chelating or bridging forms between the carboxylate groups of the N719 dyes and the TiO₂ at all stage of adsorption, while the strength of intermolecular 蟺-蟺 interactions between adjacent bipyridine rings became stronger as the density of the adsorbed dyes increased.