Microwave-induced solution combustion synthesis and luminescent properties of nano-sized powders with different Nd concentrations

The nano-sized neodymium doped aluminum lutetium garnet (LuAG:Nd) phosphors well crystallized with particle size of around 100–130 nm were successfully synthesized via microwave-induced solution combustion method. The optimal crystallization temperature of LuAG:Nd was determined at 900 °C based on c...

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Bibliographic Details
Published in:Ceramics international 2020-08, Vol.46 (11), p.17891-17895
Main Authors: Zhao, Cuncai, Yu, Jincheng, Zhang, Yujun, Gong, Hongyu, Xie, Bingying, Lin, Xiao, Sheng, Mingming, Mao, Junjie, Jing, Jie
Format: Article
Language:English
Subjects:
Absorption
Emission
LuAG:Nd
Powders
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Summary:The nano-sized neodymium doped aluminum lutetium garnet (LuAG:Nd) phosphors well crystallized with particle size of around 100–130 nm were successfully synthesized via microwave-induced solution combustion method. The optimal crystallization temperature of LuAG:Nd was determined at 900 °C based on controlled trials. XRD results showed an obvious distortion in lattice parameters of LuAG, which could be confirmed by the shift of diffraction peak towards lower degrees with Nd concentration increasing. Another evidence for successful doping of neodymium was the absorption line at around 808 nm in the absorption spectra, which could result from the Nd3+ 4I9/2-4F5/2 transition. Furthermore, the near-infrared spectra showed that the quenching concentration of Nd3+ in prepared LuAG:Nd polycrystalline samples with the highest intensity of 1064 nm was at 5 mol%.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2020.04.096