Fig. 1From: Vertically Free-Standing Ordered Pb(Zr0.52Ti0.48)O3 Nanocup Arrays by Template-Assisted Ion Beam EtchingSchematic diagram of the three fabrication procedures for the ordered VFS PZT NC arrays. i Dip PZT sol-gel into the AAO template. ii Remove the redundant PZT at the top surface of AAO by IBE. iii Remove the remaining AAO template to form the ordered VFS PZT NC arrays on Pt/Si substrateBack to article page