2017/04/16 by Tuo Li, Li, Tuo, W. Andreas Schroeder +1
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #Advanced biosensing and bioanalysis techniques #FOS: Physical sciences #Molecular Junctions and Nanostructures #Surface and Thin Film Phenomena
paper · pdf · doi:10.48550/arxiv.1704.05371
openalex publication_date 2017/04/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Face-centered cubic (FCC) is an important crystal structure, and there are ten elemental FCC metals (Al, Ag, Au, Ca, Cu, Pb, Pd, Pt, Rh, and Sr) that have this structure. Three of them could be used as photocathodes (Au, Rh, Pt, and Pd have very high work functions; Ca and Sr are very reactive). Au has high work function, but it is included for the sake of the completeness of noble metals' photoemission investigation. In this paper, we will apply the nonparametric photoemission model to investigate these four remaining FCC photocathodes; two noble metals (Cu and Au), two p-block metals (Al and Pb). Apart from the fact that the direct photoemission is dominant for most FCC photocathodes, photoemission from a surface state has also been observed for the (111)-face of noble metals. The optical properties of the (111) surface state will be extensively reviewed both experimentally and theoretically, and a surface state DFT evaluation will be performed to show that the photocathode generated hollow cone illumination (HCI) can be realized.