Presentation Information

[21p-D901-11]Development of a new interface-sensitive vibrational spectroscopic technique based on combination of infrared spectroscopy and informatics

〇(DC)Shoichi Maeda1, Shunta Chikami1, Subin Song1, Tomohiro Hayashi1,2 (1.Tokyo TECH, 2.U. Tokyo)

Keywords:

interface,vibrational spectroscopy,informatics

We have developed a new technique for analyzing the binding states of molecules at both solid-liquid and solid-gas interfaces by applying informatics to spectral analysis in infrared spectroscopy. In attenuated total reflection infrared spectroscopy, which is one of the conventional infrared spectroscopies, we devised a new experimental system where the sample was gradually brought close to the prism to increase the signal from the interfacial region between the sample and bulk. Then we performed spectral deconvolution using a multivariate curve resolution method to extract the augmented signal. Furthermore, our new technique enables quantitative evaluation of the thickness of interfacial region.