Liquid-jet photoelectron spectroscopy of functionalised nanoparticles

功能化纳米粒子的液体喷射光电子能谱

• 批准号: 2088645
• 金额: --
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2088645
• 关键词: Liquid; jet; photoelectron; spectroscopy; functionalised

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.

液体喷射光电子光谱正在成为研究发色质水溶液的宝贵光谱工具。 HHF设计并构建了独特的液体喷射光电谱仪，循环循环了少量的溶液来研究定制样品或昂贵的样品（最初针对蛋白质生色团和蛋白质设计）。有机彩色细胞溶液的最新测量表明，光电子光谱是一种特别敏感的探测溶剂化电子的敏感技术，而不是瞬态吸收光谱。这项运动将利用这种令人兴奋的能力来测量功能化的金色钛二氧化钛纳米颗粒的电子结构，以及重要的是，对于等离子体 - 刺激性电子的形成的时间表。提高我们对这些过程的详细理解对于在光伏和光催化设备基于等离子体的等离激元能量转换中更有效地转化太阳能的情况至关重要。