Samples of silica glass (SiO2) implanted with 60 keV Zn ions to a fluence of 1.0×1017 ions/cm2 were annealed in oxygen gas to form ZnO nanoparticles (NPs). Although the ZnO NPs were formed mainly on the SiO2 surface after oxidation at 700 °C for 1 h, they were formed inside the SiO2 substrate after lower temperature and long-duration oxidation at 500 °C for ∼70 h, i.e., the embedment of ZnO NPs in SiO2 was attained. The embedded NPs show a slightly stronger exciton peak and much weaker defect luminescence than the NPs formed on the surface.
Published in:
Applied Physics Letters
(Volume:90
,
Issue:
8
)
Date of Publication:
Feb 2007
- Page(s):
-
083102
-
083102-3
- ISSN :
-
0003-6951
- Digital Object Identifier :
-
10.1063/1.2709509
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
Feb 2007