Looking at the state of the art, attention is turned to systems whose properties are due to theirnano-sized structure. New processes are designed for material engineering, for theproduction of nano-structured composites, to include nano-clusters in amorphous networks,to control specific chemical reaction at the molecular level. These requirements demand evenmore sophisticated instruments and methods able to investigate systems at the nano-scale. Inthis work we will present some examples concerning the use of XPS to study nano-structuredmaterials for photonic applications. XPS on Er3+ activated silica-hafnia waveguides wasperformed in order to optimize the appropriate fabrication avoiding phase separations. XPSmay be helpful also in the analysis of Ag-exchanged Er doped sodalime glasses. In this case itis crucial to control the Ag nano-cluster dimension to obtain optimal light amplification.Providing information concerning quantum confinement effects, X-ray spectra enable theassessment of the most favorable ion exchange process. Finally it will be shown how chemicalmodeling coupled to XPS can be used to shed light on the material structure at the atomicscale.
Study Of Nano-Structured Photonics Materials by XPS
Speranza, Giorgio;Minati, Luca;Ferrari, Maurizio;Anderle, Mariano;Chiasera, Alessandro;
2006-01-01
Abstract
Looking at the state of the art, attention is turned to systems whose properties are due to theirnano-sized structure. New processes are designed for material engineering, for theproduction of nano-structured composites, to include nano-clusters in amorphous networks,to control specific chemical reaction at the molecular level. These requirements demand evenmore sophisticated instruments and methods able to investigate systems at the nano-scale. Inthis work we will present some examples concerning the use of XPS to study nano-structuredmaterials for photonic applications. XPS on Er3+ activated silica-hafnia waveguides wasperformed in order to optimize the appropriate fabrication avoiding phase separations. XPSmay be helpful also in the analysis of Ag-exchanged Er doped sodalime glasses. In this case itis crucial to control the Ag nano-cluster dimension to obtain optimal light amplification.Providing information concerning quantum confinement effects, X-ray spectra enable theassessment of the most favorable ion exchange process. Finally it will be shown how chemicalmodeling coupled to XPS can be used to shed light on the material structure at the atomicscale.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
