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The Surface Kinetics and Dynamics Laboratory concentrates
mainly on elucidating the kinetics and dynamics of gas-surface
interaction, the nanoscale structural transformation on
semiconductor surfaces, and surface photochemistry. Two
current research projects are (1) hydrogen atom induced
structural phase transition and domain formation/stability on
covalently bonded semiconductor surfaces (C, Si, and Ge); (2)
adsorption and thermally-/photocatalytically- induced
reactions of organic molecules on metal-covered TiO2(110)
surface. Related experiments are performed in UHV using
single-crystal surfaces and various surface characterization
techniques, including LEED, AES, HREELS, XPS, (AR)UPS, ISS and
TPD/TPR. In addition, surface spectroscopic methods, e.g. FTIR
and Raman scattering, are also employed to investigate the
relaxation dynamics of surface adsorbates. Additional
attention is paid to setting up UHV-STM to approach the
atomic-level understanding of chemical processes occurring on
solid surfaces. Results in this study would provide further
insight into (1) surface structural and electronic properties;
(2) surface reconstruction, bonding geometries, as well as
surface-molecule interactions; and (3) local dynamics of the
individual adsorbate.
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