Luminescence Properties of Post-Processing Porous Silicon Material

This article gives two new and simple methods to treat porous silicon material, including acid treatment and cathode reduction treatment, to improve luminescence properties of porous silicon material. The results show that: the processing of cathode reduction can improve luminescence stability of porous silicon; the processing of acid treatment can effectively improve luminescence intensity of porous silicon. A conclusion can be drawn that the method of firstly processed porous silicon with cathode reduction treatment and secondly acid treatment has better effect to porous silicon luminescence intensity and stability than that of firstly acid treatment and secondly cathode reduction treatment.