Research relevant to the understanding of polymer-metal adhesion led us to an oxygen Auger (KLL) study on metal oxide surfaces. This was done in order to analyze the ionicity and strength of 'Lewis sites' on oxide surfaces grown on metals as compared to their bulk metal oxide counterparts. Following some suggestions contained in earlier works by Wagner we show that relative Auger (KLL) oxygen energies are a sensitive probe of oxygen valence electron population and hole relaxation. A semi-empirical model is discussed to justify these findings. Furthermore it is shown that this 'observable' feature is also influenced by the metal oxide thickness at the metal surface.
IONICITY OF METALLIC OXIDE SURFACES ON METALS AS OBSERVED BY AUGER (XPS) SPECTROSCOPY / P., Ascarelli; Moretti, Giuliano. - In: SURFACE AND INTERFACE ANALYSIS. - ISSN 0142-2421. - STAMPA. - 7:1(1985), pp. 8-12. [10.1002/sia.740070103]
IONICITY OF METALLIC OXIDE SURFACES ON METALS AS OBSERVED BY AUGER (XPS) SPECTROSCOPY.
MORETTI, GIULIANO
1985
Abstract
Research relevant to the understanding of polymer-metal adhesion led us to an oxygen Auger (KLL) study on metal oxide surfaces. This was done in order to analyze the ionicity and strength of 'Lewis sites' on oxide surfaces grown on metals as compared to their bulk metal oxide counterparts. Following some suggestions contained in earlier works by Wagner we show that relative Auger (KLL) oxygen energies are a sensitive probe of oxygen valence electron population and hole relaxation. A semi-empirical model is discussed to justify these findings. Furthermore it is shown that this 'observable' feature is also influenced by the metal oxide thickness at the metal surface.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
