Insight into unusual impurity absorbability of GeO(2) in GeO(2)∕Ge stacks

Adsorbed species and its diffusion behaviors in GeO(2)∕Ge stacks, which are future alternative metal-oxide-semiconductor (MOS) materials, have been investigated using various physical analyses. We clarified that GeO(2) rapidly absorbs moisture in air just after its exposure. After the absorbed moist...

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Veröffentlicht in:Applied physics letters. - 1998. - 99(2011), 14 vom: 03. Okt., Seite 142101-1421013
1. Verfasser: Ogawa, Shingo (VerfasserIn)
Weitere Verfasser: Suda, Taichi, Yamamoto, Takashi, Kutsuki, Katsuhiro, Hideshima, Iori, Hosoi, Takuji, Shimura, Takayoshi, Watanabe, Heiji
Format: Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Applied physics letters
Schlagworte:Journal Article
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520 |a Adsorbed species and its diffusion behaviors in GeO(2)∕Ge stacks, which are future alternative metal-oxide-semiconductor (MOS) materials, have been investigated using various physical analyses. We clarified that GeO(2) rapidly absorbs moisture in air just after its exposure. After the absorbed moisture in GeO(2) reaches a certain limit, the GeO(2) starts to absorb some organic molecules, which is accompanied by a structural change in GeO(2) to form a partial carbonate or hydroxide. We also found that the hydrogen distribution in GeO(2) shows intrinsic characteristics, indicative of different diffusion behaviors at the surface and at the GeO(2)∕Ge interface. Because the impurity absorbability of GeO(2) has a great influence on the electrical properties in Ge-MOS devices, these results provide valuable information in realizing high quality GeO(2)∕Ge stacks for the actual use of Ge-MOS technologies 
650 4 |a Journal Article 
700 1 |a Suda, Taichi  |e verfasserin  |4 aut 
700 1 |a Yamamoto, Takashi  |e verfasserin  |4 aut 
700 1 |a Kutsuki, Katsuhiro  |e verfasserin  |4 aut 
700 1 |a Hideshima, Iori  |e verfasserin  |4 aut 
700 1 |a Hosoi, Takuji  |e verfasserin  |4 aut 
700 1 |a Shimura, Takayoshi  |e verfasserin  |4 aut 
700 1 |a Watanabe, Heiji  |e verfasserin  |4 aut 
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