High Temperature and High Resolution Uv Photoelectron Spectroscopy Using Supersonic Molecular Beams.

摘要

A high temperature molecular beam source with electron bombardment heating has been built for high resolution photoelectron spectroscopic studies of high temperature species and clusters. This source has the advantages of: producing an intense, continuous, seeded molecular beam, eliminating the interference of the heating mechanism from the photoelectron measurement. Coupling the source with our hemispherical electron energy analyzer, we can obtain very high resolution HeI(alpha) (584(angstrom)) photoelectron spectra of high temperature species. Vibrationally-resolved photoelectron spectra of PbSe, As(sub 2), As(sub 4), and ZnCl(sub 2) are shown to demonstrate the performance of the new source. 25 refs., 8 figs., 1 tab.