TIP-INDUCED NANOSCALE ELECTROCHEMICAL DEPOSITION OF PALLADIUM AND PLATINUM ON AN AU(111) ELECTRODE SURFACE

A nanoscale place-selective electrochemical deposition of palladium an d platinum on an Au(111) electrode induced by a scanning tunneling mic roscope (STM) tip was achieved by controlling the potentials of the Au (111) substrate and the STM tip properly. A local potential change of the substrate surface or an atom transfer process from the tip to the substrate when the tip was very close to the substrate is considered t o be responsible for the tip-induced deposition.