Spectroscopy and Spectral Analysis, Volume. 33, Issue 11, 2913(2013)
Upconversion Emission from Er3+-Yb3+-Mo6+ Co-Doped ZrO2-Al2O3 Composites
A series of ZrO2-Al2O3 composites with various compositions were synthesized by co-precipitation method, and the upconversion emission properties of the Er-Yb-Mo co-doped ZrO2-Al2O3 composites were investigated in the present paper. The green UC emission in the Er-Yb-Mo co-doped ZrO2 is an order of magnitude stronger than that of the Er3+ single doped sample. When Al2O3 mixed in ZrO2 crystalline lattice with the most solid solubility, the crystalline ZrO2-Al2O3 solid solutions is tetragonal ZrO2. The UC emission is enhanced 8 times in the ZrO2-Al2O3 solid solutions, which is due to the oxygen vacancies generated in the solid solutions, increasing the energy transfer from Yb3+-MoO2-4 to Er3+.
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XIAO Yu, CONG Yan, YANG Qi, ZHANG Zhi-hong, LIU Peng-zu. Upconversion Emission from Er3+-Yb3+-Mo6+ Co-Doped ZrO2-Al2O3 Composites[J]. Spectroscopy and Spectral Analysis, 2013, 33(11): 2913
Received: Feb. 27, 2013
Accepted: --
Published Online: Nov. 14, 2013
The Author Email: Yu XIAO (xiaoyu19890702@163.com)