2 May 2014 Optical properties of TiO2:Ag composites
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Abstract
The main goal of our research was to investigate the optical properties of nanocomposites, created by combining titanium dioxide with noble metals. Our research was focused on silver Ag, which reveals strong plasmonic effects in the visible spectrum, and rutile TiO2 - a commonly used semiconductor material that does not present any significant optical properties in the mentioned range of electromagnetic waves. Our results show that when coating is considered (i.e. the TiO2 particle is covered by an additional Ag layer) the position of the extinction peak can be manipulated and shifted towards lower wavelengths. However, when the main TiO2 particle is surrounded by small Ag spheres, such extinction peak occurs at a fixed wavelength only and cannot be adjusted.
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Krzysztof Skorupski, Krzysztof Skorupski, "Optical properties of TiO2:Ag composites", Proc. SPIE 9125, Metamaterials IX, 91251J (2 May 2014); doi: 10.1117/12.2052262; https://doi.org/10.1117/12.2052262
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