Photoluminescence(PL) properties of Si+-implanted SiO2 film, which was thermally grown on c-Si substrate, is reported. We have compared room temperature photoluminescence (PL) spectra of the samples which was made in several kinds of implantation, sub...
Photoluminescence(PL) properties of Si+-implanted SiO2 film, which was thermally grown on c-Si substrate, is reported. We have compared room temperature photoluminescence (PL) spectra of the samples which was made in several kinds of implantation, subsequent annealing and SiO2 film thickness. XRD data was correlated with the PL spectra. Silicon nanocrystals in SiO2 film is considered as the origin of the photoluminescence.PL spectra was investigated after wet etching of the SiO2 film by using BOE (Buffered Oxide Etchant) at every one minute. PL peak wavelength was varied as the etching is proceeded. These results indicate that the quantity and the distribution of dominant size of Si nanocrystals in SiO2 film seem to have a direct effect on PL spectrum.