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(Color online) EL spectrum of sample 1 obtained by applying at . The inset shows an EFTEM cross section of the sample.
EL spectrum of sample 2 obtained by applying at . The inset shows the decay of the EL intensity with time and the gate voltage.
(Color online) EL spectra of sample 2 at obtained by varying the frequency. The inset shows the evolution of the ratio between the Si and the C peaks.
Energies and doses of implantation of and in for samples 1 and 2.
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