Fine Eu3+-doped lutetium oxide (Lu2O 3:Eu3+) nanophosphor were synthesized using a low-temperature solution-combustion method in a methyl-alcohol solution. The characteristics of the nanophosphors synthesized at various sintering temperatures with different Eu3+ concentrations were analyzed to determine the optimum synthesis conditions. Thermogravimetry/differential thermal analysis showed that Lu2O3:Eu3+ crystallizes completely when the dry powder is sintered at 500 °C. The Lu2O3:Eu3+ crystals had a cubic structure and monoclinic phase. The peak position of the luminescence spectrum did not differ with the concentration of Eu or the sintering temperature or atmosphere, whereas the luminescence intensity was strongly dependent on the concentration and sintering conditions.
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Acknowledgements This work was supported by National Research Foundation of Korea Grant funded by the Korean Government (2009-0081810) and by Ministry of Knowledge Economy
- Concentration of Eu
- Low-temperature solution-combustion method
- Sintering conditions