SPECTROSCOPIC AND SEM INVESTIGATIONS OF POROUS SILICON DOPED WITH DYES

Results of photoluminescence (PL) and scanning electron microscopy (SE M) studies of porous silicon (PS) layers doped with stilbene 1 (St1) a nd kiton red 620 (Kt) dyes before and after aging are reported. The PS layers impregnated with St1 and Kt emit in different spectral regions . An extent of the layer oxidation before the dye impregnation has bee n shown to give a possibility of tuning the PS emission range. The rev ealed effects might be applied in optoelectronic technology.