Abstract
Through the study of photoluminescence spectra, fluorescence decay curves, concentration-dependent luminescence and low temperature luminescence, the energy transfer from isolated \(\mathrm{VO}_{4}^{3-}\) group to Yb3+ is investigated in Yb3+ doped YP0.9V0.1O4. The experimental results show that the energy transfer from \(\mathrm{VO}_{4}^{3-}\) group to Yb3+ is very efficient. Cooperative energy transfer, through which one high-energy photon absorbed by \(\mathrm{VO}_{4}^{3-}\) group is converted to two near-infrared photons emitted by Yb3+ ions, is proposed to be the energy transfer process. This efficient ultra-violet to near-infrared downconversion could have potential application in improving the efficiency of silicon-based solar cell.
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Acknowledgements
This work was financially supported by National Natural Science Foundation of China (Grant Nos. 11074245, 11011120083, 10904139 and 11074315), China Postdoctoral Science Foundation (Grant Nos. 20100480693 and 201104334), Knowledge Innovation Project of The Chinese Academy of Sciences (Grant No. KJCX2-YW-M11), and Special Foundation for Talents of Anhui Province, China (Grant No. 2007Z021).
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Wei, X.T., Jiang, G., Deng, K. et al. Near-infrared downconversion through energy transfer from \(\mathrm{VO}_{4}^{3-}\) group to Yb3+ in Yb3+ doped YP0.9V0.1O4 . Appl. Phys. B 108, 463–467 (2012). https://doi.org/10.1007/s00340-012-4892-1
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DOI: https://doi.org/10.1007/s00340-012-4892-1