Abstract
The chapter considers some features of the metal nanoparticle (MN) fabrication in polymer matrix by ion implantation. The polymer layers were irradiated by silver ions with high doses up to 1017ion/cm2. The optical density spectra of these composites demonstrate that the silver nanoparticles exhibit unusually weak and wide plasmon resonance spectra in polymer—polymethylmethacrylate. The formation of silver nanoparticles in polymer carbonized by ion irradiation is reviewed. Based on the Mie theory, optical extinction spectra for metal particles in the polymer and carbon matrices are simulated and compared with optical spectra for complex silver core–carbon shell nanoparticles. In addition, for synthesis of MNPs the ion irradiation of viscous polymer matrix is observed. The viscous epoxy resin is implanted by silver ions with different doses. As a result, epoxy resin layers containing silver nanoparticles in their volume are fabricated. Various types of disperse structures formed by metallic nanoparticles in the polymer are detected. The morphology of the composite material is found to be controlled by the polymer viscosity and the metal deposition time. The use of the viscous state of epoxy resin increases the diffusion coefficient of silver impurity, which stimulates the nucleation and growth of nanoparticles and allows a high filling factor of metal in the polymer to be achieved. Mechanisms of MN growth in viscous epoxy resin are discussed.
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