Annealing behavior of implanted silicon in amorphous carbon films deposited
by a pulsed are discharge method was studied. Raman spectroscopy was used
to characterize the changes in the bonding structure after annealing. The c
oncentration profiles of Si were measured by secondary ion mass spectrometr
y (SIMS). The obtained diffusion coefficients resulted in an activation ene
rgy of 1.6+/-0.1 eV and pre-exponential factor of 1.9 x 10(4+/-1) nm(2) s(-
1). (C) 2001 Elsevier Science B.V. All rights reserved.