| Summary: | The synthesis process has a significant influence on the properties of Ca<sub>1-x</sub>TiO<sub>3</sub>:Eu<sup>3+</sup><sub>x</sub> phosphors; thus, an optimized process will lead to a better performance of the Ca<sub>1-x</sub>TiO<sub>3</sub>:Eu<sup>3+</sup><sub>x</sub> phosphors. In this work, the feasibility of synthesizing the Ca<sub>1-x</sub>TiO<sub>3</sub>:Eu<sup>3+</sup><sub>x</sub> phosphor with a good luminescent performance by combining the chemical co-precipitation method and microwave-assisted sintering was studied. The precursor of Ca<sub>1-x</sub>TiO<sub>3</sub>:Eu<sup>3+</sup><sub>x</sub> phosphors were prepared by the chemical co-precipitation method. To find an optimized process, we applied both of the traditional (furnace) sintering and the microwave-assisted sintering to synthesize the Ca<sub>1-x</sub>TiO<sub>3</sub>:Eu<sup>3+</sup><sub>x</sub> phosphors. We found out that a sintering power of 528 W for 50 min (temperature around 950 °C) by a microwave oven resulted in similar emission intensity results compared to traditional furnace sintering at 900 °C for 2.5 h. The synthesized Ca<sub>1-x</sub>TiO<sub>3</sub>:Eu<sup>3+</sup><sub>x</sub> phosphors has an emission peak at 617 nm (<sup>5</sup>D<sub>0</sub>→<sup>7</sup>F<sub>2</sub>), which corresponds to the red light band. This new synthesized method is an energy efficient, time saving, and environmentally friendly means for the preparation of Ca<sub>1-x</sub>TiO<sub>3</sub>:Eu<sup>3+</sup><sub>x</sub> red phosphor with good luminescent performance.
|
|---|
