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| Structure of Single-phase Sm-doped BaTiO3 Ceramics |
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Received:October 14, 2019
Revised:October 19, 2019
Accepted:October 21, 2019
Published Online:February 17, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.03.015 |
| KeyWord:BaTiO3; Sm-doped; single phase; fluorescent effect |
| Author | Institution |
| LIU Qiao-li |
吉林化工学院 材料科学与工程学院 |
| LIU Jun-wei |
吉林化工学院 材料科学与工程学院 |
| WANG Chen |
吉林化工学院 材料科学与工程学院 |
| LU Da-yong |
吉林化工学院 材料科学与工程学院 |
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| Abstract: |
| Ba1-xSmxTi1-x/4O3 (BST) (x=0.02-0.07) ceramics with Ti vacancy compensation were prepared using high temperature solid state reaction at 1 400 ℃/12 h. Crystal structure of BST ceramics was characterized by XRD, and Raman spectra were measured at 532 and 638 nm excitation wavelengths. The results show that all samples are single-phase perovskite structure when x≤0.07, and crystal structure changes from tetragonal (x≤0.06) to cubic (x=0.07). Raman spectra excited by different lasers confirm that high-frequency spectra are related to fluorescent effect of Sm3+. |
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