Figure 7From: Preparation of Aligned Ultra-long and Diameter-controlled Silicon Oxide Nanotubes by Plasma Enhanced Chemical Vapor Deposition Using Electrospun PVP Nanofiber Templatea Low-magnification and b high-magnification TEM images of aligned SiOx nanotubes with thinner inner diameter. c Low-magnification and d high-magnification SEM images of a cross-section of SiOx nanotubes with thicker tube wallBack to article page