Figure 1From: Carbon-fiber tips for scanning probe microscopes and molecular electronics experimentsCarbon-fiber tip mounted on a tuning fork. (Left) Optical micrograph of a quartz tuning fork where the carbon-fiber tip is attached at the free end of one of its prongs. (Right) Scanning electron micrograph of an electrochemically etched carbon-fiber tip. The radius of curvature of the tip apex is 50 nm.Back to article page