| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1536047 | Optics Communications | 2013 | 6 Pages |
Abstract
We demonstrate upconversion spectra of Er3+ doped ZrO2 nanocrystals under different heat treating processes. Upconversion intensity decreases with increasing concentration of doping Er3+ when it exceeds 1Â mol%. After re-calcination, however, the intensity is greatly enhanced in Er3+ highly doped samples. The mechanism of this phenomenon is attributed to the suppression of energy transfer from Er3+ to OHâ. In addition, variation of the ratios of red to green emission is discussed.
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Lu Liu, Chunlei Li, Xinlu Zhang, Yujin Chen, Li Li, Zhenguo Zhang, Yuxiao Wang,