| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1534751 | Optics Communications | 2014 | 4 Pages |
Abstract
In this paper, Ce3+/Gd3+ co-doped NaYF4 nanocrystals were prepared via a traditional hydrothermal method using oleic acid as the stabilizing agent. Under 250 nm excitation, down-conversion emissions centered at 305 and 311 nm were observed in NaYF4:Ce3+/Gd3+ nanocrystals. The down-conversion emissions were attributed to the 6P7/2, 6P5/2→8S7/2 transitions of Gd3+ ions. The energy transfer from Ce3+ to Gd3+ plays a crucial role in populating the excited energy levels of Gd3+ ions.
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Authors
Jin He, Guozhong Ren, Yifu Mao, Lijun Xiang,