| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1626038 | Journal of Alloys and Compounds | 2007 | 5 Pages |
Abstract
A valence change from Eu3+ to Eu2+ was observed in the europium ion-doped ZnO–B2O3–P2O5 glasses prepared at high temperature in air. The fluorescence emission spectrum of the sample consists of a broad emission band ascribed to the 5d–4f transition of Eu2+ ion and sharp emission peaks assigned to the transitions of 5Do–7FJ (J = 0, 1, 2, 3, and 4) of Eu3+ ion, indicating that part of Eu3+ can be reduced into Eu2+ in the glass. A charge compensation model is proposed. The rigid tetrahedral network structure of glasses plays an important role in stability of Eu2+. The fabrication conditions are also studied.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Zhihong Lian, Jing Wang, Yuhua Lv, Shubin Wang, Qiang Su,