Oxidation rate increases with increasing the applied AC voltage as the applied voltage less than 3V and then the oxidation rate saturates at 12nm/min as the applied AC voltage larger than 3V.

• 在外加交流操作偏压值3V以下，氧化图形的氧化速率随著外加的交流操作偏压增加而增加，这是由于外加偏压增加造成的浓度增加所影响。