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Structural characterization of ion implanted beta-SiC thin films

Conference ·
OSTI ID:6016476
Thin films of ..beta..-SiC (100) grown on Si have been implanted with Al, P, Si and Si plus C. The temperature dependence of implantation-induced damage was studied between 77K and 1023K using transmission electron microscopy and Rutherford backscattering/channeling. Amorphous layers resulting from implantation of any of the above species recrystallized via solid-phase-epitaxy during post-implantation annealing between 1973K and 2073K. As such, this latter process necessitated the prior removal of the Si substrate. However, the resultant layers were very defective. Increasing the sample temperature to 1023K during implantation allowed in situ dynamic annealing of the samples and therefore, greatly reduced the residual damage to the lattice. No additional annealing was required for structural recovery.
Research Organization:
North Carolina State Univ., Raleigh (USA). Dept. of Materials Science and Engineering; Oak Ridge National Lab., TN (USA)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
6016476
Report Number(s):
CONF-8708151-1; ON: DE87014567
Country of Publication:
United States
Language:
English