Abstract
Trivalent terbium-doped lutetium-aluminate nano-garnet (Lu3Al5O12:Tb3+) powder was prepared by using the Pechini sol-gel process. The structure and crystallinity of the Lu3Al5O12:Tb3+ nano-garnet were characterized by using X-ray diffraction, transmission electron microscopy and Fourier transform infrared spectroscopy. The green emission of Tb3+ ions is observed at 545 nm corresponding to the 5D4 → 7F5 transition under the 271-nm excitation. The temperature dependent luminescence properties of the Lu3Al5O12:Tb3+ nano-garnet are investigated. The results show that the present garnet exhibits better thermal stability than the other green emitting phosphors, hence, the Lu3Al5O12:Tb3+ phosphor is a promising candidate for light-emitting devices.
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Praveena, R., Shim, J.J., Cai, P. et al. Luminescence properties of Lu3Al5O12:Tb3+ nano-garnet. Journal of the Korean Physical Society 64, 1859–1865 (2014). https://doi.org/10.3938/jkps.64.1859
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DOI: https://doi.org/10.3938/jkps.64.1859