Electronic structure of metalloprotein monolayer observed by High-Sensitivity Ultraviolet Photoelectron Spectroscopy

Abstract

In the bioelectronics field, metalloproteins containing metal atoms and having high electrical conductivity are expected to be applied to electronic devices. For understanding the electron transfer process in the device, the absolute energy level protein is required. In this study, the electronic structure of metalloprotein containing copper atoms was successfully observed by High-Sensitivity Ultraviolet Photoelectron Spectroscopy (HS-UPS) that can detect weak signals of sub-ppm order.