Figure 2From: Macropore formation in p-type silicon: toward the modeling of morphologyPore morphologies, as observed by SEM, obtained for different anodic polarization potentials. SEM plan view and cross section of the morphologies formed after dissolution of a 10-Ω cm (100) p-Si single-crystal in 0.05 M HF, 0.05 M NH4F, and 0.9 M NH4Cl for 24 h at (a) 0.15, (b) 0.22, (c) 0.35, and (d) 0.40 V.Back to article page