Influence of excitation and anodization condition to the luminescence of C~+ implanted Si

It is found that anodization is the premise of blue luminescence,at the different conditions of which,there will be magnificent transition of the spectra to their height and location as shown that the blue luminescence is superseded by a red emission at increasing anodization. The blue luminescence can also be influenced by change of excitation wavelength,for example,at the excitation of 260 nm the 431 nm emission at the excitation can be blued-shifted to 420 nm.