Figure 4 | Scientific Reports

Figure 4

From: Stable fabrication of a large nanopore by controlled dielectric breakdown in a high-pH solution for the detection of various-sized molecules

Figure 4

TEM images of SiN membranes after CBD under several pH, voltage, and Icutoff conditions. An image of the entire membrane and a magnified view of the area around the created defect or nanopore are shown in each image set. Defective portions or nanopores are indicated by yellow arrows. The thickness of the SiN membranes was 20 nm. During CBD, Vcis was set at 20 V or 18 V, and Vtrans was set at 0 V. Scale bars for the images of the entire membranes are 200 nm, and those for the magnified views are 20 nm.

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