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 language | English (US) |
|---|---|
| Pages (from-to) | 587-596 |
| Number of pages | 10 |
| Journal | Crystal Growth and Design |
| Volume | 10 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 3 2010 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Synthesis mechanisms of organized gold nanoparticles
T2 - Influence of annealing temperature and atmosphere
AU - Bechelany, Mikhael
AU - Maeder, Xavier
AU - McQuiston, Jessica
AU - Hankache, Jihane
AU - Lerose, Damiana
AU - Christiansen, Silke
AU - Michler, Johann
AU - Philippe, Laetitia
PY - 2010/2/3
Y1 - 2010/2/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=76349088544&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=76349088544&partnerID=8YFLogxK
U2 - 10.1021/cg900981q
DO - 10.1021/cg900981q
M3 - Article
VL - 10
SP - 587
EP - 596
JO - Crystal Growth and Design
JF - Crystal Growth and Design
SN - 1528-7483
IS - 2
ER -