Evidence of layer-by-layer oxidation of Ge surfaces by plasma oxidation through Al2O3
Evidence of layer-by-layer oxidation of Ge surfaces by plasma oxidation through Al2O3
复制标题
通过 Al2O3 等离子氧化对 Ge 表面进行逐层氧化的证据
DOI:
10.1149/05009.0699ecst
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
M.Takenaka and S.Takagi
中科院分区:
文献类型:
--
作者:
R.Zhang;P.-C.Huang;M.Takenaka and S.Takagi
The ultrathin GeOx/Ge interfaces formed on Ge (100) and (111) surfaces have been characterized using XPS. The oscillating behaviors of the Ge 1+ and the 2+ states on Ge (100) surfaces and the Ge 1+ and the 3+ states on Ge (111) surfaces are observed in period of~ 0.3 and~ 0.5 nm, respectively, during the post plasma oxidation of the Ge MOS interfaces. These phenomena strongly suggest an atomic layer-by-layer oxidation of GeOx/Ge interfaces on both Ge (100) and (111) surfaces.