SPRAY PYROLYSIS ELECTROCHROMIC WO_3 AND MoO_3 COATINGS

摘要

Thin electrochromic WO_3 and MoO_3 films were obtained on tin oxide covered glass substrates by spray pyrolysis method using acetyloacetonates of appropriate metals as precursors. The films were characterized by X-ray photoelectron spectroscopy /XPS/, scanning electron microscopy (SEM) and X-ray diffraction. The XPS analysis has revealed the presence of the lower valency states in the virgin films. The electrochromic behaviour was observed with liquid as well as semi-solid polymeric electrolytes.