O. Gonzalez-varona et al., Synthesis of luminescent particles in SiO2 films by sequential Si and C ion implantation, MICROEL REL, 40(4-5), 2000, pp. 885-888
Thermal oxides co-implanted with Si+ and C+ and submitted to thermal anneal
ing treatments present an intense white photoluminescence emission at room
temperature, visible to the naked eye. Emission spectra show three intense
and simultaneous emission bands centered at 1.45 eV (infrared), 2.1 eV (yel
low) and 2.8 eV (blue), The origin of these bands can be explained in terms
of the simultaneous formation of different kinds of nanoprecipitates of th
e Si, SiC and C. Besides, the intensity of these bands was found to depend
strongly on the annealing time, which is linked to the kinetics of these pr
ecipitates. (C) 2000 Published by Elsevier Science Ltd. All rights reserved
.