| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1686673 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2010 | 4 Pages |
Abstract
Vacancy-type defects are introduced into magnesium aluminate spinel (MgAl2O4 (1Â 1Â 0)) by Ar-ions implantation, and then Ag-ions are implanted into the depth rich in vacancy-type defects. The ultraviolet-visible spectrometry (UV-VIS) and positron annihilation spectroscopy (PAS) are used to study the influence of vacancy-type defects on nucleation of Ag nanoparticles. After introduction of vacancy-type defects the pronounced increase of surface plasmon resonance (SPR) absorbance intensity indicates that defects enhance the nucleation of Ag nanoparticles. The PAS results reveal that vacancy-type defects provide pre-nucleating centers for Ag nanoparticles nucleation and growth.
Related Topics
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Materials Science
Surfaces, Coatings and Films
Authors
Yitao Yang, Chonghong Zhang, Bingsheng Li, Liqing Zhang, Chaoliang Xu, Xiujun Jia,