In-situ Measurement Of Photoelectron Spectroscopy In Air Of Polypyrrole During Electrochemical Undoping

摘要

In-situ measurement of photoeleetron spectra of polypyrrole during electrochemical undoping/doping cycles has been carried out by using an open-type electrochemical cell. It has been observed that the ion-ization potential decreases with decreased electrochemical potential. This result seems to be reasonable because the decreased electrochemical potential corresponds to the undoping or recovery of electrons into vacant state of valence band.