The Center for Gas-Phase Electron Spectroscopy is a
multi-user, shared instrumentation facility within the
Chemistry Department at The University of Arizona. The
focus of research in the Center is investigation of the
electronic structure of large molecules by gas-phase
photoelectron spectroscopy.
The diverse scope of the individual research projects
carried out in the Facility requires instruments with a
broad range of capabilities for current problems,
durability to a large number of chemical samples with
different chemical behavior, and flexibility to adapt to
future research directions of Departmental faculty and
the many external collaborators. Instrumentation in the
Center includes two photoelectron spectrometers, each
with a 36 cm, McPherson hemispherical electron kinetic
energy analyzer and custom designed sample entry,
ionization sources, and detection and control
electronics. One of these instruments is currently
undergoing major upgrades supported by the National
Science Foundation CRIF program.Experimental
techniques have been developed that allow manipulation
of samples that are extremely air, moisture, light, and
thermally sensitive. Sample entry and sublimation
areas have been customized so that samples with
sublimation temperatures up to 500˚C can be analyzed.
As the only site in the United States that currently
has capabilities for gas-phase photoelectron
spectroscopy of large neutral molecules, the Center has
a strong commitment to collaborative research efforts
with external researchers. In recent years the Center
has collaborated with over 50 domestic and international
research groups.
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