| Ultrafast Laser Synthesis of Uncapped Nanoparticles & Prospective THz-TDS Characterisation |
Ms Andriana Loukovitou |
Ruhr University, Bochum |
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11:00, Tuesday 3 November 2026 |
| Physics Seminar Room (Building 46/5081) |
| Metallic nanoparticles (NPs) have diverse applications, particularly in (electro)catalysis, but conventional synthesis often relies on reducing and capping agents that can introduce impurities. Laser reduction in liquids offers a promising alternative for producing clean, uncapped NPs. This study investigates the individual and co-reduction of Au and Pd precursors for the synthesis of uncapped NPs, examining the effects of laser treatment time on particle size and composition using in situ visible spectroscopy, ex situ UV–visible spectroscopy, scanning transmission electron microscopy and energy-dispersive X-ray spectroscopy. Additionally, the potential of terahertz time-domain spectroscopy for characterising these NPs in solution will be explored. |
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