| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5402426 | Journal of Luminescence | 2010 | 5 Pages |
Abstract
CePO4:Tb nanorods were synthesized via a simple wet-chemical route. The as-synthesized CePO4:Tb nanorods present high photoluminescence efficiency due to an efficient energy transfer form Ce3+ to Tb3+. However, heat treatment at 150 °C in air leads to a significant decrease of photoluminescence. X-ray photoelectron spectroscopy and excitation spectra revealed the oxidation of Ce3+ to Ce4+ in the heat-treatment process, which should be responsible for significant photoluminescence degradation due to the breakage of Ce3+âTb3+ energy transfer. This conclusion is further supported by atmosphere and size effects of photoluminescence of CePO4:Tb under the heat treatment.
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Authors
Weihua Di, Xiaoxia Zhao, Zhaogang Nie, Xiaojun Wang, Shaozhe Lu, Haifeng Zhao, Xinguang Ren,