Growth of high-density gold nanoparticles on an indium tin oxide surface prepared using a "touch" seed-mediated growth technique

Ali Umar Akrajas, Munetaka Oyama

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

This paper reports our novel approach in an attempt to grow high-density gold nanoparticles on an indium tin oxide (ITO) surface using an improved "touch" seeding technique, instead of the "normal" seeding approach, in a seed mediated growth procedure as we reported previously [Kambayashi et al., Cryst. Growth Des. 2005, 5, 81-84]. The present approach provides a simple and useful strategy to promote the growth of gold nanoparticles on ITO surfaces by simply touching the surface that has already been covered with a drop of gold nanoparticle seed solution with a tissue paper. The FE-SEM characterization of the growth of gold nanoparticles on two different surface structures, i.e., rough and smooth structures, has confirmed that this approach is very effective and prospective in fostering the growth of high-density gold nanoparticles with a relatively small size (ca. 10-30 nm) of spherical-like structure. An optical properties study confirmed that the modified ITO system could be used as a functionalized optically transparent electrode for spectro- and photoelectrochemical applications.

Original languageEnglish
Pages (from-to)599-607
Number of pages9
JournalCrystal Growth and Design
Volume5
Issue number2
DOIs
Publication statusPublished - Mar 2005
Externally publishedYes

Fingerprint

touch
Tin oxides
Gold
indium oxides
Indium
tin oxides
Seed
seeds
gold
Nanoparticles
nanoparticles
inoculation
Surface structure
Optical properties
indium tin oxide
Tissue
optical properties
Scanning electron microscopy
Electrodes
scanning electron microscopy

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Growth of high-density gold nanoparticles on an indium tin oxide surface prepared using a "touch" seed-mediated growth technique. / Akrajas, Ali Umar; Oyama, Munetaka.

In: Crystal Growth and Design, Vol. 5, No. 2, 03.2005, p. 599-607.

Research output: Contribution to journalArticle

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