Infrared Reflection-Absorption Spectra of Calcium Icosanate Langmuir-Blodgett Films Observed by Using Zinc Oxide-Based Transparent Electrode and Gold

Abstract

As a method for characterizing the electronic state and molecular orientation of organic materials put on electrodes, infrared reflection-absorption spectroscopy (IR-RAS) is a well-known powerful tool. We have demonstrated that transparent electrodes based on zinc oxide are useful as substrates for the IR-RAS measurements. Although their absorption-signal enhancement effect is smaller than that of gold substrates, sometimes IR-RAS with them provides a better basis than that with gold for discussing the molecular orientation.