Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9567290 | Applied Surface Science | 2005 | 5 Pages |
Abstract
Spectra of the optical transmission and ion-induced photon emission (IIPE) of silica glass were measured during implantation of 60 keV Cuâ ions at ion fluxes from 1 to 75 μA/cm2 up to a fluence of 2 Ã 1017 ions/cm2, aimed at monitoring the formation of Cu nanoparticles. The precipitation threshold of Cu atoms is flux-dependent. At fluxes from 1 to 10 μA/cm2, the formation of nanoparticles is efficient up to fluences of 2 Ã 1017 ions/cm2. The efficiency of IIPE of Cu+ solutes in silica glass (band at 2.25 eV) is proportional to a total concentration of Cu solutes. In a single-phase region (solid solution of Cu atoms), the efficiency of IIPE of Cu+ solutes is flux-independent. In a two-phase region (solid solution and Cu nanoparticles), the dynamic balance between the nanoparticles and Cu solutes determines the flux-dependent behavior of the efficiency of IIPE.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
O.A. Plaksin, Y. Takeda, K. Kono, H. Amekura, N. Umeda, N. Kishimoto,