Molecular Orientation Analysis in Organic Thin Films by Infrared Spectroscopy

Infrared spectroscopic techniques for surface analysis are introduced.Infrared spectra provide qualitative and quantitative molecular information for most of the chemical groups.In particular, the quantitative polarized infrared spectra of surface species reflects molecular orientation, which is recognized to be a key to develop new functionalized materials.In this manuscript, conventionally useful techniques are described first, and a recent trend is also introduced, so that benefits of infrared spectroscopy would be enhanced.