A Study of the Role of Polyacrylic Acid in the Surface Modification of Porous Silicon with the Aim of Enhancing and Stabilizing Silicon Photoluminescence

摘要

The effect of the chemical treatment of porous silicon with polyacrylic acid on the composition and photoluminescence properties of silicon is studied by infrared spectroscopy and photoluminescence. A mechanism of interaction between polyacrylic acid and the surface of porous silicon, which leads to a significant increase in the photoluminescence intensity of the samples, is proposed.