Charged State Control for Organic Domain Structure by Atomic Force Microscope

Abstract
Nanometer-scale domain structures of organic molecules were fabricated on the SiO2 substrates. The electric charges were injected into the single domain by the contact electrification process using a tip of Atomic Force Microscope. We observed the charge distribution by mapping the surface potential two-dimensionally, and found that the injected charges were stably stored in the isolated domain. The number of injected charges depended on the tip bias during contact, and we succeeded in injecting and imaging only a few elementary charges.