Synthesis and Characterization of Mesoporous Silicon Spheres from Solid Silica Spheres
A well known method was used to convert the solid silica spheres to porous silicon spheres with high surface area, with the starting shape retained. The presented work demonstrated that the porous silicon spheres are composed of polycrystal morphology. Due to the quantum confinement effect, the photoluminescence emission centered at 621 nm. The results of N2 adsorption and desorption analysis indicates the mesoporous silicon spheres possess a surface area around 88 m2 g-1 and single point micro-pore volume 0.173 cm3 g-1.
Yi Tan and Dongying Ju
J. Zhu and C. G. Meng, "Synthesis and Characterization of Mesoporous Silicon Spheres from Solid Silica Spheres", Materials Science Forum, Vols. 675-677, pp. 1069-1072, 2011