Liquid-jet photoelectron spectroscopy of functionalised nanoparticles

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Liquid-jet photoelectron spectroscopy is emerging as a valuable spectroscopic tool for studying chromophoresin aqueous solution. HHF has designed and built a unique liquid-jet photoelectron spectrometerthat recirculates small volumes of solution for studying bespoke or expensive samples (originallydesigned for protein chromophores and proteins). Recent measurements of organic chromophoresin aqueous solution have shown that photoelectron spectroscopy is a particularly sensitivetechnique for probing solvated electrons, more so than transient absorption spectroscopy. Thisproject will exploit this exciting capability to measure the electronic structure of functionalised goldand titanium dioxide nanoparticles and, importantly, the timescales for formation of plasmon-inducedhot-electrons. Improving our detailed understanding of these processes is crucially important for thedesign of more efficient conversion of solar energy in photovoltaic and photocatalytic devices basedon plasmonic energy conversion.