The techniques of silver-sodium ion exchange and Ag+ ion implantation in glass have been successfully applied for producing silver clusters in soda-lime glass optical waveguides. Optical absorption spectroscopy, time and spectrally resolved photoluminescence, Rutherford backscattering spectrometry, X-ray photoelectron spectroscopy and transmission electron microscopy measurements were made. Structural changes of the Ag+ environment were observed in ion-exchanged samples prepared in liquids with different Ag+ concentrations. Heat treatments in air and in H-2 atmospheres induced cluster formation in ion-exchanged samples through different reduction-migration mechanisms, whereas clusters formation in ion-implanted samples is related to the defect concentrations induced by the radiation damage.
Synthesis of silver nanoclusters in silica-based glasses for optoelectronics application
DE MARCHI, GIOVANNA;MATTEI, GIOVANNI;MAZZOLDI, PAOLO;
1999
Abstract
The techniques of silver-sodium ion exchange and Ag+ ion implantation in glass have been successfully applied for producing silver clusters in soda-lime glass optical waveguides. Optical absorption spectroscopy, time and spectrally resolved photoluminescence, Rutherford backscattering spectrometry, X-ray photoelectron spectroscopy and transmission electron microscopy measurements were made. Structural changes of the Ag+ environment were observed in ion-exchanged samples prepared in liquids with different Ag+ concentrations. Heat treatments in air and in H-2 atmospheres induced cluster formation in ion-exchanged samples through different reduction-migration mechanisms, whereas clusters formation in ion-implanted samples is related to the defect concentrations induced by the radiation damage.Pubblicazioni consigliate
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