| 草酸共沉淀法制备Yb3+∶Y1.88La0.12O3纳米粉体及光谱性能 |
| Oxalate Co-Precipitation Synthesis of Yb3+∶Y1.88La0.12O3 Nanopowders and Its Spectroscopic Characteristics |
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| 摘要: 以草酸为沉淀剂，聚乙二醇(PEG1000)为表面活性剂，采用超声辐射沉淀法制备了Yb3+、La3+共掺的Y2O3纳米粉体，采用TG/DTA、XRD、FTIR、TEM以及EDS等测试方法对粉体性能进行了表征，并对其室温下的吸收光谱及发射光谱进行了测试。结果表明：在1 000 ℃煅烧4 h所得粉体粒度均匀，粒径在40～60 nm之间，具有较好的分散性。荧光发射的最强峰位于1 032.1 nm，吸收的最强峰位于977 nm， |
| 关键词: Yb3+∶Y1.88La0.12O3 透明陶瓷 草酸 共沉淀法 纳米粉体 |
| 基金项目: |
| Abstract: Yb3+, La3+ co-doped yttria nanopowder Yb3+∶Y1.88La0.12O3 was synthesized by oxalate co-precipitation method under ultrasonic radiation. Yb3+∶Y1.88La0.12O3 nanopowders calcined at different temperatures were characterized by TG/DTA, XRD, FTIR, TEM and EDS techniques, the absorption and emission spectra of the sample were also studied. The results indicate that nanopowder calcined at 1 000 ℃ for 4 h were 40～60 nm in size and well dispersed. The strongest emission peak and the strongest absorption peak centered at 1 032.1 nm and 977 nm respectively, all corresponding to the transition between energy level of 2F7/2 and 2F5/2 of Yb3+ ion. |
| Keywords: Yb3+∶Y1.88La0.12O3 transparent ceramics oxalic acid co-precipitation method nanopowder |
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| 王能利,雷 东,张希艳,刘全生,孙海鹰.草酸共沉淀法制备Yb3+∶Y1.88La0.12O3纳米粉体及光谱性能[J].无机化学学报,2009,25(8):1408-1413. |
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