Temperature dependence of Cu_2O orientations in the oxidation of Cu(111)/ZnO(0001) by oxygen plasma

• 作 者: 李俊强 梅增霞 叶大千 侯尧楠 刘尧平 A. Yu. Kuznetsov 杜小龙
• 机 构: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of S
• 出 处: Chinese Physics B
• 发表日期: 2012年07期
• 关键词: migration nucleation crystalline oxidized oxidant hexagonal oxidizing clearly te

The role of temperature on the oxidation dynamics of Cu2O on ZnO (0001) was investigated during the oxidation of Cu (111)/ZnO (0001) by using oxygen plasma as the oxidant. A transition from single crystalline Cu2O (111) orientation to micro-zone phase separation with multiple orientations was revealed when the oxidation temperature increased above 300°C. The experimental results clearly show the effect of the oxidation temperature with the assistance of oxygen plasma on changing the morphology of Cu (111) film and enhancing the lateral nucleation and migration abilities of cuprous oxides. A vertical top-down oxidation mode and a lateral migration model were proposed to explain the different nucleation and growth dynamics of the temperature-dependent oxidation process in the oxidation of Cu (111)/ZnO (0001).

The role of temperature on the oxidation dynamics of Cu2O on ZnO (0001) was investigated during the oxidation of Cu (111) / ZnO (0001) by using oxygen plasma as the oxidant. A transition from single crystalline Cu2O (111) orientation to micro -zone phase separation with multiple orientations was revealed when the oxidation temperature increased above 300 ° C. The experimental results clearly show the effect of the oxidation temperature with the assistance of oxygen plasma on changing the morphology of Cu (111) film and enhancing the lateral nucleation and migration abilities of cuprous oxides. A vertical top-down oxidation mode and a lateral migration model were proposed to explain the different nucleation and growth dynamics of the temperature-dependent oxidation process in the oxidation of Cu (111) / ZnO (0001) .