| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5402191 | Journal of Luminescence | 2011 | 4 Pages |
Abstract
We prepared Er3+ doped and Er3+/Yb3+ codoped Sb2O4 nanocrystals by the sol-gel method. The Raman, X-ray diffraction (XRD), transmission electron microscope (TEM), and photoluminescence spectra of the samples were studied. The phonon energy of the Sb2O4 nanocrystals is very low (the maximum value being 461Â cmâ1). The upconversion (UC) red emission of the Er3+/Yb3+ codoped sample is very strong at 975Â nm laser diode excitation. The Sb2O4 nanocrystals will be a promising luminous material.
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Authors
Chengguo Ming, Feng Song, Qingru Wang, Gong Zhang, Yin Yu,