| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10632988 | Optical Materials | 2014 | 6 Pages |
Abstract
The sol-gel method is used for the preparation of undoped, Mn and V-doped Zn2SiO4 particles embedded in SiO2 host matrix. The phase purity and morphological features were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) investigations. The obtained SiO2/Zn2SiO4 nanocomposite, exhibits a strong photoluminescence (PL) band centered at around 760Â nm, attributed to energy transfer occurs from Zn2SiO4 particles to NBOHs interfaces defects. In addition, the PL spectrum for the SiO2/Zn2SiO4:Mn nanocomposite showed that a dominant peak at 525Â nm appeared, which originated from the 4T1-6A1 transitions of Mn2+ ions. In the case of SiO2/Zn2SiO4:V, the PL reveals a band centered at about 540Â nm attributed to the effect of the V5+ in the host matrix nanocomposite.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J. El Ghoul, K. Omri, S.A. Gómez-Lopera, L. El Mir,