Synthesis mechanisms of organized gold nanoparticles

Influence of annealing temperature and atmosphere

Mikhael Bechelany, Xavier Maeder, Jessica McQuiston, Jihane Hankache, Damiana Lerose, Silke Christiansen, Johann Michler, Laetitia Philippe

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

We report on the synthesis of organized arrays of gold (Au) nanoparticles on thermally oxidized Si wafers using sputtering as a metal deposition method in combination with sphere lithography. This simple process leads to the formation of a honeycomb mask of Au at room temperature (RT). We study the transformation mechanism of this honeycomb mask to a hexagonal array of Au nanoparticles by annealing at different temperatures and in different atmospheres. The underlying mechanisms of pattern formation during annealing are coalescence of particles and Ostwald ripening and depend on temperature and atmosphere. The crystallinity and orientation of the nanoparticles with respect to the underlying substrate is analyzed by electron backscatter diffraction (EBSD), and the control of the morphology, size, shape, and orientation in different atmospheres (argon (Ar), nitrogen (N2), air, hydrogen (H2), and vacuum) is discussed.

Original languageEnglish (US)
Pages (from-to)587-596
Number of pages10
JournalCrystal Growth and Design
Volume10
Issue number2
DOIs
StatePublished - Feb 3 2010
Externally publishedYes

Fingerprint

Gold
Annealing
gold
Nanoparticles
atmospheres
nanoparticles
annealing
Masks
masks
synthesis
Ostwald ripening
Argon
Coalescence
Electron diffraction
Temperature
Lithography
coalescing
Particles (particulate matter)
Sputtering
temperature

ASJC Scopus subject areas

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

Cite this

Synthesis mechanisms of organized gold nanoparticles : Influence of annealing temperature and atmosphere. / Bechelany, Mikhael; Maeder, Xavier; McQuiston, Jessica; Hankache, Jihane; Lerose, Damiana; Christiansen, Silke; Michler, Johann; Philippe, Laetitia.

In: Crystal Growth and Design, Vol. 10, No. 2, 03.02.2010, p. 587-596.

Research output: Contribution to journalArticle

Bechelany, M, Maeder, X, McQuiston, J, Hankache, J, Lerose, D, Christiansen, S, Michler, J & Philippe, L 2010, 'Synthesis mechanisms of organized gold nanoparticles: Influence of annealing temperature and atmosphere', Crystal Growth and Design, vol. 10, no. 2, pp. 587-596. https://doi.org/10.1021/cg900981q
Bechelany, Mikhael ; Maeder, Xavier ; McQuiston, Jessica ; Hankache, Jihane ; Lerose, Damiana ; Christiansen, Silke ; Michler, Johann ; Philippe, Laetitia. / Synthesis mechanisms of organized gold nanoparticles : Influence of annealing temperature and atmosphere. In: Crystal Growth and Design. 2010 ; Vol. 10, No. 2. pp. 587-596.
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