Abstract
Dissociative adsorption of monomethylsilane (MMS), a promising precursor gas for low-temperature SiC, has been investigated on Si(100) by using temperature-programmed desorption (TPD) method after its comparison with H/ and C2H2/Si(100) surfaces. For both MMS/ and C2H2/Si(100), the β1 peak from SiH species showed a shift to higher temperatures in the presence of surface C atoms, while two new peaks appeared separately for the two gases: γ peak (approximately 640 °C) for the C2H2/ and δ peak (approximately 870 °C) for the MMS/Si(100). The γ peak is suggested to be from hydrogen desorption from SiH species at which a C atom is inserted to its backbond. The δ peak is related to desorption from surface CHx species. The absence of the γ peak on MMS/Si(100) suggests absence of atomic exchange between surface C and substrate Si atoms on its adsorption.
Original language | English |
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Pages (from-to) | 139-145 |
Number of pages | 7 |
Journal | Applied Surface Science |
Volume | 162 |
DOIs | |
Publication status | Published - 2000 Aug 1 |
Externally published | Yes |
Event | 5th International Symposium on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-5) - Provence, France Duration: 1999 Jul 6 → 1999 Jul 9 |
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films