Synthesis Of Noble Metal Nanoparticle Composite Glasses Using Low Energy Ion Beam Mixing

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Carbon coated thin films of Cu or Au on fused silica glasses have been irradiated using 100 keV Ar+ ions at different fluences ranging from 1×1013 to 1×1016 ion/cm2. In this article, we explore a route to form noble metal nanoparticles in amorphous glass matrices without post irradiation annealing using low energy ion beam mixing where nuclear energy loss process is dominant. Optical and structural properties were studied using UV‐Vis‐NIR absorbance spectroscopy and Glancing angle X‐ray Diffraction (GXRD). Results showed that Cu and Au nanoparticles are formed at higher fluence of 1×1016 ion/cm2 used in this work without annealing. The diameters of metal nanoparticles obtained from UV‐Vis NIR and GXRD are in agreement.