Control of Spatially Localized Chemical Reactions Using a Scanning Probe Microscope
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- SAITO Nagahiro
- Graduate School of Engineering, Nagoya University
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- ISHIZAKI Takahiro
- EcoTopia Science Institute, Nagoya University
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- LEE SunHyung
- Graduate School of Engineering, Nagoya University
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- TAKAI Osamu
- EcoTopia Science Institute, Nagoya University
Bibliographic Information
- Other Title
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- 走査型プローブ顕微鏡を用いた局所空間化学反応の制御
- ソウサガタ プローブ ケンビキョウ オ モチイタ キョクショ クウカン カガク ハンノウ ノ セイギョ
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Description
Control of spatially localized chemical reactions such as site-selective reversible chemical conversion of functional groups and metal deposition on nano and/or micro areas is important to fabricate new devices in the next generation. In this study, the reaction controls were attempted with a nano probe. In the reversible chemical conversion, amino-terminated self-assembled monolayers (SAMs), which were prepared on Si substrates from (p-aminophenyl)trimethoxysilane (APhS) through chemical vapor deposition, were electrochemically converted into nitoroso-terminate ones using an atomic force microscope. The electrochemical reaction required the positive bias voltages of +0.5 to +3V. In order to define the chemical conversion, the sample substrates were immersed in a solution of pH=4 containing carboxylate-modified polystyrene (PS) spheres. The PS spheres were site-selectively adsorbed on the non-scanned regions. This indicates that non-scanned regions justifiably correspond to amino-terminated SAMs. On the other hand, the PS spheres were not adsorbed on the scanned regions at all, since the regions were oxidized and converted into nitoroso-terminated SAMs. Furthermore, the oxidized regions could also be reduced by a probe with negative bias voltage of −2V. The site-selective electroless deposition was actualized using a surface-induced reduction of gold ions combined with scanning probe lithography. Gold nano- or micro-structures on hydrogen-terminated Si surfaces were demonstrated. After fabrication of an Au nanostructure, 1-hexadecanethiol was immobilized on the Au surface. The result shows that we successfully controlled chemical reactions in nanometer-scale by the formation of metal patterns with the SPM.<br>
Journal
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- Journal of The Surface Finishing Society of Japan
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Journal of The Surface Finishing Society of Japan 56 (12), 930-937, 2005
The Surface Finishing Society of Japan
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Details 詳細情報について
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- CRID
- 1390001204117792896
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- NII Article ID
- 10016921549
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- NII Book ID
- AN1005202X
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- COI
- 1:CAS:528:DC%2BD28XntFalug%3D%3D
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- ISSN
- 18843409
- 09151869
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- NDL BIB ID
- 7786830
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed