Formation of Ordered Rod-like Clusters of Iodine on H-Terminated Si(111) Surfaces During Immersion in Concentrated HI Solutions.
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- Imanishi Akihito
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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- Ishida Masaki
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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- Zhou Xiaowen
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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- Nakato Yoshihiro
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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抄録
Iodine adsorption (or reaction) on atomically-flat H-terminated Si(111) surfaces in 7.1 M HI and 7.1 M HI+0.05 M I2 was investigated by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). XPS measurements showed that iodine was adsorbed gradually with time when immersed in 7.1 M HI, and rapidly and in a larger quantity when immersed in 7.1 M HI/0.05 M I2. AFM inspection showed that circular dot-like clusters were formed initially in both the HI and HI/I2 solutions. However, for the case of 7.1 M HI solution, dot-like clusters, located near steps, grew with time only in particular directions of threefold symmetry of Si(111), resulting in ordered wire-like clusters. For the case of HI/I2 solution, the circular dot-like clusters were distributed randomly on terraces and steps even after prolonged immersion, with no formation of any ordered clusters.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 39 (7B), 4355-4358, 2000
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390001206252188800
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- NII論文ID
- 210000047540
- 110004068071
- 130004527607
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- NII書誌ID
- AA10457675
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 5430161
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可