Optical properties of plasma polymer films with encapsulated silver particles |
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Authors: | A Heilmann J Werner and V Hopfe |
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Abstract: | Plasma polymer thin films with encapsulated small metal particles were prepared by simultaneous plasma polymerization and metal evaporation. Based on transmission electron microscope (TEM) micrographs, particle size and shape were analysed on films with continuously varying filling factor. Thermal annealing causes dramatic changes of the particle size and shape. The optical (UV, VIS, NIR) properties of the films were determined by the UV-absorption of the plasma polymer and by the plasma resonance absorption of the metal particles. The changes in the transmission spectra during thermal annealing were simulated with different effective medium theories. The calculated transmission spectra were fitted to the experimental spectra. |
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Keywords: | PACS" target="_blank">PACS 65 55 Jk 78 65 Pi 81 20 Ti |
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