Abstract
High-resolution electron energy loss spectroscopy and photoluminescence measurements have been used to follow the formation of gap states during the initial oxidation of Si(100)-2x1 at room temperature. We find strong indications that gap states are already induced after the adsorption of 0.002 L of molecular oxygen on Si(100)-2x1. It is demonstrated that prolonged exposures of clean and dehydrogenated oxide films on Si(100) to H2O at room temperature decrease the density of gap states significantly. (C) 2000 American Institute of Physics. [S0003- 6951(00)03449-5].
Original language | English |
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Volume | 77 |
Publication status | Published - 4 Dec 2000 |
Keywords
- SI EJECTION
- SI(001)
- SURFACES
- PHOTOEMISSION
- DEVICES
- TRAPS
- LEVEL