Manipulations of properties of the W-line emitting from the Si+ Self-ion-implanted Si thin films on insulated oxide layer
绝缘氧化层上自离子注入Si薄膜W线发光性能的调控

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 D1, D2, D3, 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.