Figure 3From: Direct measurement of electrostatic fields using single Teflon nanoparticle attached to AFM tipSchematic diagram of experimental setup for the deposition of charge to the sTNP tip. (a) Schematic diagram of experimental setup for the deposition of charge to the sTNP at the vertex of the Si3N4 AFM tip and (b) × 40 optical microscope image of the charging setup.Back to article page