| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1650901 | Materials Letters | 2008 | 4 Pages |
Abstract
The quenching concentrations of 5D4–7F6 emission of Tb3+ in (Gd,Y)BO3:Tb under 130–290 nm excitation were systematically investigated. The results revealed that its quenching concentrations of luminescence excited at particular wavelengths are dependent on corresponding excitation bands. Resulting in a calculation of coupling interaction, it was found that the quenching concentrations at excitation regions due to electrostatic interaction are often small while those corresponding to exchange interaction are usually larger (> 10%). Moreover, the quenching concentrations are also influenced significantly by luminescence sensitization of Gd3+ and Y3+ ions. Based on these results, a possible photoluminescence quenching mechanism was proposed.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Jiachi Zhang, Yuhua Wang, Zhiya Zhang, Zhilong Wang, Bin Liu,