Thermal Restoration of Oxygenated Germanium Surfaces
- 1 May 1958
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 29 (5), 771-775
- https://doi.org/10.1063/1.1723282
Abstract
Cleaved germanium surfaces, oxygenated at room temperature, were heated under high vacuum and the restoration of their oxygen‐adsorbing capacity was determined. No restoration was observed at 425°C. Above 575°C, however, the oxygen‐adsorbing capacity of the surfaces was completely recovered. Discharge of GeO from the surface was associated with this process. The restoration process followed first‐order reaction kinetics with an activation energy of 56 kcal/mole. Concurrently with restoration a pronounced decrease in the surface area was observed. The results are discussed in terms of the kinetic and energy requirements of the system.Keywords
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