Discover and Optimisation of High Efficiency Photocathode Materials

高效光电阴极材料的发现与优化

• 批准号: 2619720
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2619720
• 关键词: Discover; Optimisation; Efficiency; Photocathode; Materials

There is an urgent need for novel photocathode materials for 4th generation light sources. These consist of very high quantum efficiency and low emmitance cathodes that are used to injecting electrons into a free electron lazer cavity. A combination of mesoscale modelling and photoemission prediction (from hybrid-DFT, TD-DFT and GW as appropriate) will be used to characterise the emmited spectrum from complex material surfaces and coatings. The resultant structure-property relationships will be used within a large international collaboration to generate next generation light sources for materials characteriation.

第四代光源迫切需要新型光电阴极材料。它们由非常高的量子效率和低发射率阴极组成，用于将电子注入自由电子激光腔。介观尺度建模和光电发射预测（酌情使用混合 DFT、TD-DFT 和 GW）的组合将用于表征复杂材料表面和涂层的发射光谱。由此产生的结构-性能关系将用于大型国际合作，以产生用于材料表征的下一代光源。