Photoluminescence stability of polymer-coated porous silicon

الملخص EN

The photoluminescence stability of the porous silicon produced by laser-induced etching of silicon has been studied.

We have employed a method to improve the PL stability of the porous structure.

The porous structure was coated by a thin polymer layer, which is transparent to the visible light emitted by the Si nanocrystallites.

The porous structure was not affected by the polymer layer and the size of the consistent silicon nanocrystallites does not reduce with the aging time.

It has been observed that the polymer treated PS samples are chemically stable and that leads to improve the photoluminescence stability of the porous silicon with aging time.