Influence of AgNO3 on Photoluminescence Properties of Porous Silicon

Abstract

Porous silicon (PS) has the strong photoluminescence (PL) at room temperature and high specific surface. In this paper, we have fabricated the PS coated with silver nanoparticles as a substrate. The result shows that the substrate made in this way is stable for more than twenty days and the strong PL intensity of PS is around 584nm after immersed into solution of AgNO3. The formation of SiAg bond was demonstrated to be responsible for the improvement of PL properties.