Fabrication of covalent SAM/Au nanoparticle/boron-doped diamond configurations with a sequential self-assembly method

Takeshi Kondo, Shinsuke Aoshima, Kensuke Honda, Yasuaki Einaga, Akira Fujishima, Takeshi Kawai

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

An attempt was made to make use of chemical modification of the diamond surface to control the adsorption of Au nanoparticles (AuNPs) on this surface via self-assembly. AuNPs prepared with a citrate reduction method (c-AuNP) and mercaptoacetic acid (MAA)-modified AuNPs (MAA-AuNP) were not adsorbed onto hydrogen-terminated and oxygen-terminated boron-doped diamond (BDD) surfaces. On the other hand, c-AuNP and MAA-AuNP were found to be adsorbed in a homogeneous, well-dispersed fashion on NH2-terminated and SH-terminated BDDs prepared with the silane coupling method. It was also found that the adsorption of c-AuNP on SH-BDD was more stable than that on NH2-BDD versus immersion in various thiol aqueous solutions used to form self-assembled monolayers (SAMs) on the Au surface, without desorption of the AuNP from the BDD surface. Immersion of the c-AuNP/SH-BDD sample in a ferrocenylalkanethiol/ ethanol solution was found, by cyclic voltammetry, to result in chemisorption of the thiol to the Au surface. Facile electronic communication through the ferrocenyl moiety to the BDD substrate suggests that SAM/AuNP/BDD configurations based on SH-BDD fabricated by a self-assembly method can be applied to possible molecular electronic and electrochemical devices.

Original languageEnglish
Pages (from-to)12650-12657
Number of pages8
JournalJournal of Physical Chemistry C
Volume111
Issue number34
DOIs
Publication statusPublished - 2007 Aug 30

Fingerprint

Diamond
Boron
Self assembled monolayers
Self assembly
self assembly
Diamonds
boron
diamonds
Nanoparticles
Fabrication
nanoparticles
fabrication
configurations
Sulfhydryl Compounds
thiols
submerging
Silanes
Molecular electronics
Adsorption
acids

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Fabrication of covalent SAM/Au nanoparticle/boron-doped diamond configurations with a sequential self-assembly method. / Kondo, Takeshi; Aoshima, Shinsuke; Honda, Kensuke; Einaga, Yasuaki; Fujishima, Akira; Kawai, Takeshi.

In: Journal of Physical Chemistry C, Vol. 111, No. 34, 30.08.2007, p. 12650-12657.

Research output: Contribution to journalArticle

Kondo, Takeshi ; Aoshima, Shinsuke ; Honda, Kensuke ; Einaga, Yasuaki ; Fujishima, Akira ; Kawai, Takeshi. / Fabrication of covalent SAM/Au nanoparticle/boron-doped diamond configurations with a sequential self-assembly method. In: Journal of Physical Chemistry C. 2007 ; Vol. 111, No. 34. pp. 12650-12657.
@article{4b9cf0abf9e4417994d1247c090f5450,
title = "Fabrication of covalent SAM/Au nanoparticle/boron-doped diamond configurations with a sequential self-assembly method",
abstract = "An attempt was made to make use of chemical modification of the diamond surface to control the adsorption of Au nanoparticles (AuNPs) on this surface via self-assembly. AuNPs prepared with a citrate reduction method (c-AuNP) and mercaptoacetic acid (MAA)-modified AuNPs (MAA-AuNP) were not adsorbed onto hydrogen-terminated and oxygen-terminated boron-doped diamond (BDD) surfaces. On the other hand, c-AuNP and MAA-AuNP were found to be adsorbed in a homogeneous, well-dispersed fashion on NH2-terminated and SH-terminated BDDs prepared with the silane coupling method. It was also found that the adsorption of c-AuNP on SH-BDD was more stable than that on NH2-BDD versus immersion in various thiol aqueous solutions used to form self-assembled monolayers (SAMs) on the Au surface, without desorption of the AuNP from the BDD surface. Immersion of the c-AuNP/SH-BDD sample in a ferrocenylalkanethiol/ ethanol solution was found, by cyclic voltammetry, to result in chemisorption of the thiol to the Au surface. Facile electronic communication through the ferrocenyl moiety to the BDD substrate suggests that SAM/AuNP/BDD configurations based on SH-BDD fabricated by a self-assembly method can be applied to possible molecular electronic and electrochemical devices.",
author = "Takeshi Kondo and Shinsuke Aoshima and Kensuke Honda and Yasuaki Einaga and Akira Fujishima and Takeshi Kawai",
year = "2007",
month = "8",
day = "30",
doi = "10.1021/jp0727704",
language = "English",
volume = "111",
pages = "12650--12657",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "34",

}

TY - JOUR

T1 - Fabrication of covalent SAM/Au nanoparticle/boron-doped diamond configurations with a sequential self-assembly method

AU - Kondo, Takeshi

AU - Aoshima, Shinsuke

AU - Honda, Kensuke

AU - Einaga, Yasuaki

AU - Fujishima, Akira

AU - Kawai, Takeshi

PY - 2007/8/30

Y1 - 2007/8/30

N2 - An attempt was made to make use of chemical modification of the diamond surface to control the adsorption of Au nanoparticles (AuNPs) on this surface via self-assembly. AuNPs prepared with a citrate reduction method (c-AuNP) and mercaptoacetic acid (MAA)-modified AuNPs (MAA-AuNP) were not adsorbed onto hydrogen-terminated and oxygen-terminated boron-doped diamond (BDD) surfaces. On the other hand, c-AuNP and MAA-AuNP were found to be adsorbed in a homogeneous, well-dispersed fashion on NH2-terminated and SH-terminated BDDs prepared with the silane coupling method. It was also found that the adsorption of c-AuNP on SH-BDD was more stable than that on NH2-BDD versus immersion in various thiol aqueous solutions used to form self-assembled monolayers (SAMs) on the Au surface, without desorption of the AuNP from the BDD surface. Immersion of the c-AuNP/SH-BDD sample in a ferrocenylalkanethiol/ ethanol solution was found, by cyclic voltammetry, to result in chemisorption of the thiol to the Au surface. Facile electronic communication through the ferrocenyl moiety to the BDD substrate suggests that SAM/AuNP/BDD configurations based on SH-BDD fabricated by a self-assembly method can be applied to possible molecular electronic and electrochemical devices.

AB - An attempt was made to make use of chemical modification of the diamond surface to control the adsorption of Au nanoparticles (AuNPs) on this surface via self-assembly. AuNPs prepared with a citrate reduction method (c-AuNP) and mercaptoacetic acid (MAA)-modified AuNPs (MAA-AuNP) were not adsorbed onto hydrogen-terminated and oxygen-terminated boron-doped diamond (BDD) surfaces. On the other hand, c-AuNP and MAA-AuNP were found to be adsorbed in a homogeneous, well-dispersed fashion on NH2-terminated and SH-terminated BDDs prepared with the silane coupling method. It was also found that the adsorption of c-AuNP on SH-BDD was more stable than that on NH2-BDD versus immersion in various thiol aqueous solutions used to form self-assembled monolayers (SAMs) on the Au surface, without desorption of the AuNP from the BDD surface. Immersion of the c-AuNP/SH-BDD sample in a ferrocenylalkanethiol/ ethanol solution was found, by cyclic voltammetry, to result in chemisorption of the thiol to the Au surface. Facile electronic communication through the ferrocenyl moiety to the BDD substrate suggests that SAM/AuNP/BDD configurations based on SH-BDD fabricated by a self-assembly method can be applied to possible molecular electronic and electrochemical devices.

UR - http://www.scopus.com/inward/record.url?scp=34548577127&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548577127&partnerID=8YFLogxK

U2 - 10.1021/jp0727704

DO - 10.1021/jp0727704

M3 - Article

AN - SCOPUS:34548577127

VL - 111

SP - 12650

EP - 12657

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 34

ER -