A cast seed-mediated growth method for preparing gold nanoparticle-attached indium tin oxide surfaces

Ali Umar Akrajas, Munetaka Oyama

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

An effective approach to attach gold nanoparticles (AuNPs) directly on indium tin oxide (ITO) surface with higher density is reported. The attachment was carried out using a cast seed-mediated growth method, which was revised from our previous seed-mediated growth approach. The cast seeding with three-cycles of the drop of the seed solution containing Au nano-seed particles and the evaporation at 30 °C followed by the treatment in the growth solution containing HAuCl4, cetyltrimethylammonium bromide (CTAB) and ascorbic acid was found to be suitable to prepare the AuNPs attached ITO surfaces having higher density and narrower size distribution. The 10-cycles cast seeding formed the connected or networked nanostructures of AuNPs, though the optical properties were different from those of the dispersed AuNP-attached ITO. The present cast seeding approach provides a facile and useful strategy to attach AuNPs on the surface without the use of certain organic binder molecules.

Original languageEnglish
Pages (from-to)2196-2202
Number of pages7
JournalApplied Surface Science
Volume253
Issue number4
DOIs
Publication statusPublished - 15 Dec 2006
Externally publishedYes

Fingerprint

Tin oxides
Gold
indium oxides
Indium
tin oxides
Seed
casts
seeds
inoculation
gold
Nanoparticles
nanoparticles
Cloud seeding
cycles
ascorbic acid
Ascorbic acid
Ascorbic Acid
Binders
attachment
bromides

Keywords

  • Cast seeding
  • Gold nanoparticles
  • Nano-structured material
  • Seed-mediated growth method
  • Surface modification

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics

Cite this

A cast seed-mediated growth method for preparing gold nanoparticle-attached indium tin oxide surfaces. / Akrajas, Ali Umar; Oyama, Munetaka.

In: Applied Surface Science, Vol. 253, No. 4, 15.12.2006, p. 2196-2202.

Research output: Contribution to journalArticle

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