Journal
OPTICAL MATERIALS EXPRESS
Volume 7, Issue 3, Pages 1007-1013Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.7.001007
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Funding
- National Natural Science Foundation of China [51202244, 51503036]
- Natural Science Foundation of Fujian Province [2015J01632, 2016J05109]
- Scientific Project of Fujian Education Department [JA15534, JA15536, JZ160484]
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Er3+-doped CeO2-SiO2 nanocomposite was successfully fabricated by a sol-gel route. The homogeneous distribution of CeO2 nanocrystals among amorphous silica matrix was evidenced by the X-ray diffraction, transmission electron microscopy, and Fourier transform infrared spectroscopy. The incorporation of Er3+ ions into CeO2 nanocrystals was revealed by emission spectra and luminescence decay curves. Increasing CeO2 content and raising annealing temperature lead to the enhancement of the 1532 nm Er3+ emission, because CeO2 nanocrystals can efficiently sensitize the emission of Er3+, provide a low phonon energy environment, and defend them from hydroxyl quenching. It is expected that the investigated nanocomposite might be a promising candidate for optical fiber communication. (C) 2017 Optical Society of America
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