Abstract
Broadband spectral conversion from visible light to near-infrared radiation in Ce3+–Nd3+/Yb3+ codoped yttrium aluminum garnet is reported. Excitation, emission spectra, and decay curves have been measured to prove the energy transfer from Ce3+ to Nd3+ or Yb3+. The energy transfer efficiencies have been estimated, and the mechanisms of the energy transfer between Ce3+ and Nd3+/Yb3+ have been proposed. Ce3+–Nd3+ codoped YAG can obtain more effective emission in the desired near-infrared region (around 1100 nm) through broadband conversion, showing potential application to improve the conversion efficiency of Si solar cells.
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Acknowledgment
This work was financially supported by the National Natural Science Foundation of China (Grant No. 50872123 and 50802083), National Basic Research Program of China (Grant No. 2006CB8060007), and the Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT0651).
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Zhou, J., Teng, Y., Liu, X. et al. Broadband spectral conversion of visible light to near-infrared emission via energy transfer from Ce3+ to Nd3+/Yb3+ in YAG. Journal of Materials Research 26, 689–692 (2011). https://doi.org/10.1557/jmr.2010.84
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DOI: https://doi.org/10.1557/jmr.2010.84