Abstract
Core–shell nanoparticles, comprising gold nanoparticles (AuNPs) and titanium oxide nanoparticles (TiO2–NPs), were synthesized using pulsed laser ablation. This study examined the characteristics of these nanoparticles at three different composition ratios: 25% Au–75% TiO2, 50% Au–50% TiO2, and 75% Au–25% TiO2. We explored the resulting nanocomposite’s ultraviolet (UV) absorption and transmittance, analyzing the results through transmission electron microscopy (TEM) and spectroscopic techniques. The characteristics of the synthesized core–shell NPs exhibited significant variation depending on the ratios of Au and Ti examined. Notably, we observed an absorption peak at 530 nm. Interestingly, core–shell NPs with a higher concentration of Au displayed increased UV absorption, indicating enhanced UV absorption characteristics. TEM imaging unveiled the morphology of the synthesized core–shell NPs. The adjustment in the ratio of the original NPs to introduce core–shell NPs contributed to the synthesis of more efficient nanoparticles. These findings have potential implications for developing innovative materials with improved UV absorption capabilities, particularly in biomedical applications.
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Resen, D.A., Mahmood, A.I., Fakhri, M.A. et al. Optoelectronics properties enhancement in gold–titanium core–shell nanoparticles for UV absorption. J Opt (2023). https://doi.org/10.1007/s12596-023-01414-4
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DOI: https://doi.org/10.1007/s12596-023-01414-4