Solvation dynamics of surface-trapped electrons at NH3 and D2O crystallites adsorbed on metals: from femtosecond to minute timescales

摘要: The creation and stabilization of localized, low-energy electrons is investigated in polar molecular environments. We create such excess excited states ice ammonia crystallites adsorbed on metal surfaces observe their relaxation real time using time-resolved photoelectron spectroscopy. observed dynamics proceed up to minute timescales are therefore slowed down considerably compared ultrafast state front surfaces, which proceeds typically femto- or picosecond scales. It the highly efficient wave function constriction from that ultimately enables investigation over a large range (up 17 orders magnitude). Therefore, it gives novel insight into solvated electron ground formation at interfaces. As these long-lived for both, D2O NH3 crystallites, they appear be general character molecule–metal Their time- temperature-dependent analyzed crystalline ammonia, an empirical model yields fundamental solvation processes respective solvent.