Rod- And Wire-like Morphologies Of Tin Oxide Developed With Plasma Oxidation After Electrodeposition

摘要

A new manufacturing method has been developed to prepare films composed of Sn-rich SnO_2 wires and rods using electrodeposition and subsequent plasma oxidation of pure Sn. The morphology of Sn-rich tin oxide grains varied significantly depending on the deposition current density. After a DC plasma oxidation process, the Sn, SnO, and SnO_2 phases were obtained as spherical grains when the previous electrodeposition was carried out at 6 A/dm~2 current density. The wire morphology was obtained only when the electrodeposition current was below 3 A/dm~2. The film produced at 1.5 A/dm~2 and then plasma oxidized showed wire morphology with single crystals of SnO_2 that formed in the (110) direction.