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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  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-7564-9416 (unconfirmed)
Ichii, Takashi  kyouindb  KAKEN_id
Sugimura, Hiroyuki  kyouindb  KAKEN_id
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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