Manipulations of properties of the W-line emitting from the Si + Self-ion-implanted Si thin films on insulated oxide layer

The Si + self-ion-implanted and annealing experiments are conducted on the Si film based on the silicon-on-insulator wafers. The photoluminescence (PL) spectroscopy is used to investigate the luminescence properties of these Si film samples. Plentiful optical structures are observed in the PL spectra, including the D 1 , D 2 , D 3 , X, and the sharp W lines. By comparing the normalized PL intensities recorded by the same spectral experiments, we obtain the optimum self-ion-implanted and thermal annealing parameters. In addition, the defect origins and optical properties of the series of the D peaks and W line are well discussed.