Abstract
Thin films of silicon carbide (SiC) have been grown at 1000-1500°C on vicinal and on-axis α(6H)-SiC(0 0 0 1) substrates by gas-source molecular-beam epitaxy (GSMBE). Growth on on-axis and off-axis 6H-SiC(0 0 0 1) substrates using the SiH4-C2H4 system resulted in 3C-SiC(1 1 1) epilayers under all conditions of reactant gas flow and temperature. By adding H2 to the SiH4-C2H4 system, films of 6H-SiC(0 0 0 1) were deposited on vicinal 6H-SiC substrates at deposition temperature ≥1350°C. Kinetic analysis of the deposition of 3C-SiC films with respect to reactant inputs and growth temperature is presented. From the data, the deposition of 3C-SiC appears to be surface-reaction-controlled. Reflection high-energy electron diffraction (RHEED) and high-resolution transmission electron microscopy (HRTEM) was used to determine the crystalline quality, surface character and epilayer polytype.
Original language | English |
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Pages (from-to) | 581-593 |
Number of pages | 13 |
Journal | Journal of Crystal Growth |
Volume | 183 |
Issue number | 4 |
DOIs | |
Publication status | Published - Feb 1998 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Inorganic Chemistry
- Materials Chemistry