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Abstract
The adsorption of Se from an electrochemical cell on a W(100) surface at various temperatures is studied by Auger electron spectroscopy (AES), low energy electron diffraction (LEED), work function change measurements (Δφ) and thermal desorption spectroscopy (TDS) without and with thermal annealing. A large number of superstructures is found in LEED which are attributed to adsorption layers on an unreconstructed surface, using AES for relative coverage calibration. The TDS spectra indicate a complex desorption behaviour for coverages above about 0.5 monolayers (ML).
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