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      Our research focusses on developing a molecular view of chemical processes that take place on surfaces.   Important examples of these processes include heterogeneous catalysis, chemical vapor deposition, and etching of semiconductors.  In our studies, we employ supersonic molecular beam scattering techniques, mass spectroscopy, thermal desorption, Auger spectroscopy, scanning tunneling microscopy, time of flight spectroscopy, and ultrahigh vacuum techniques  Shown below is an example of a process that we induce using supersonic supersonic beams.

Collision Induced Desorption of adsorbates from a Surface

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A heavy, energetic atom (yellow) imparts energy to the adsorbates (blue), causing them to desorb from the surface In this example, the adsorbates recombine during desorption, and so the process is called, " collision-induced recombinative desorption."

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