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Title: | Formation of uniform ferrocenyl-terminated monolayer covalently bonded to Si using reaction of hydrogen-terminated Si(111) surface with vinylferrocene/n-decane solution by visible-light excitation. |
Authors: | Sano, Hikaru Zhao, Mingxiu Kasahara, Daiji Murase, Kuniaki ![]() ![]() ![]() Ichii, Takashi ![]() ![]() Sugimura, Hiroyuki ![]() ![]() |
Author's alias: | 佐野, 光 趙, 明修 笠原, 大爾 邑瀬, 邦明 一井, 崇 杉村, 博之 |
Keywords: | Self-assembled monolayer Ferrocenyl group Vinylferrocene Electrochemically active AFM Cyclic voltammetry |
Issue Date: | 1-Sep-2011 |
Publisher: | Elsevier Inc. |
Journal title: | Journal of colloid and interface science |
Volume: | 361 |
Issue: | 1 |
Start page: | 259 |
End page: | 269 |
Abstract: | Electrochemically active self-assembled monolayers (SAM) have been successfully fabricated with atomic-scale uniformity on a silicon (Si)(111) surface by immobilizing vinylferrocene (VFC) molecules through Si-C covalent bonds. The reaction of VFC with the hydrogen-terminated Si (H-Si)(111) surface was photochemically promoted by irradiation of visible light on a H-Si(111) substrate immersed in n-decane solution of VFC. We found that aggregation and polymerization of VFC was avoided when n-decane was used as a solvent. Voltammetric quantification revealed that the surface density of ferrocenyl groups was 1.4×10(-10)molcm(-2), i.e., 11% in substitution rate of Si-H bond. VFC-SAMs were then formed by the optimized preparation method on n-type and p-type Si wafers. VFC-SAM on n-type Si showed positive photo-responsivity, while VFC-SAM on p-type Si showed negative photo-responsivity. |
Rights: | © 2011 Elsevier Inc. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/143737 |
DOI(Published Version): | 10.1016/j.jcis.2011.05.071 |
PubMed ID: | 21696751 |
Appears in Collections: | Journal Articles |

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