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采用化学共沉淀法制备了纳米晶ZrO2:Eu3+-Bi3+ 粉体, 所制备的纳米晶粉体均能观测到Eu3+离子的室温特征发射. 研究了样品的晶体结构和发光性质. 结果表明: 经600 ℃煅烧后得到的纳米晶ZrO2:Eu3+-Bi3+ 粉体的晶相为四方相, 经800, 950及1100 ℃ 煅烧后的样品为四方相和单斜相的混合晶相. Eu3+ 离子在四方相中的室温特征发射明显强于在混合相中的发射. Bi3+ 离子的掺入对Eu3+ 离子的室温特征发射有显著的敏化作用.
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关键词:
- 纳米晶ZrO2:Eu3+-Bi3+ /
- 共沉淀法 /
- 光致发光 /
- 能量传递
Eu3+ and Bi3+ codoped ZrO2 nanocrystalline powders are prepared by chemical co-precipitation method. The room temperature characteristic emission of Eu3+ can be observed from each sample. We determine the crystal structures and luminescent properties of the samples. It is shown that the crystal phase of nanocrystalline ZrO2:Eu3+-Bi3+ powder calcined at 600 ℃ is tetragonal, and it turns into the mixture of tetragonal and monoclinic phase as temperature rises to 800, 950, and 1100 ℃. It is obvious that characteristic emission intensity of Eu3+ in the tetragonal phase is greater than in the mixed phase. Bi3+ can sensitize the room temperature characteristic emission of Eu3+ in nanocrystalline ZrO2.-
Keywords:
- nanocrystalline ZrO2:Eu3+-Bi3+ /
- chemical co-precipitation /
- photoluminescence /
- energy transfer
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[14] Wang Z L, Wang Y H, Zhang J C 2008 Chem. Res. Chin. Univ. 24 679
[15] Zhong R X, Zhang J H, Li M Y, Wang X Q 2012 Acta Phys. Sin. 61 117801 (in Chinese) [钟瑞霞, 张家骅, 李明亚, 王晓强 2012 61 117801]
[16] Xu W, Li C R, Chen B J, Feng Z Q 2010 Acta Phys. Sin. 59 1328 (in Chinese) [徐伟, 李成仁, 陈宝玖, 冯志 2010 59 1328]
[17] Zhang Q H, Wang J, Ni H Y, Wang L L 2012 Rare Met. 31 35
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[1] Gouveia-Neto A S, Silva A F, Bueno L A, Costa E B 2012 J. Lumin. 132 299
[2] Chang Y S, Shi Z R, Tsai Y Y, Wu S, Chen H L 2011 Opt. Mater. 33 375
[3] Ding Y C, Zhao G J, Nakai Y, Tsuboi T 2011 J. Alloys Compd. 509 7488
[4] Zhang J C, Qin Q S, Yu M H 2012 J. Lumin. 132 23
[5] Tanabe S, Hayashi H, Hanada T, Onodera N 2002 Opt. Mater. 19 343
[6] Li X M, Lü S C, Liu J X 2007 Chin. J. Lumin. 28 378 (in Chinese) [李秀明, 吕树臣, 刘金霞 2007 发光学报 28 378]
[7] Liu J X, Lü S C, Li X M 2004 J.Chin. RE Soc. 22 867 (in Chinese) [刘金霞, 吕树臣, 李秀明 2004 中国稀土学报 22 867]
[8] Li X M, Lü S C, Liu J X 2005 Chin. J. Lumin. 26 220 (in Chinese) [李秀明, 吕树臣, 刘金霞 2005 发光学报 26 220]
[9] Zhou W, Lü S C 2008 Chin. J. Lumin. 29 176 (in Chinese) [周巍, 吕树臣2008 发光学报 29 176]
[10] Liu J X, Lü S C 2006 J. Synth. Cryst. 35 1129 (in Chinese) [刘金霞, 吕树臣 2006 人工晶体学报 35 1129]
[11] Tan X X, Lü S C 2010 Acta Photonica Sin. 39 1169 (in Chinese) [谭鑫鑫, 吕树臣 2010 光子学报 39 1169]
[12] Liu J X, Lü S C, Li X M 2006 Spectrosc. Spectral Anal. 26 605 (in Chinese) [刘金霞, 吕树臣, 李秀明 2006 光谱学与光谱分析 26 605]
[13] Lü J T, Wang K J, Liu J S, Zhang Q Q, Zhu Q H, Zeng X M, Yao J Q 2011 Acta Opt. Sin. 31 1116001 (in Chinese) [吕健滔, 王可嘉, 刘劲松, 张清泉, 朱启华, 曾小明, 姚建铨 2011光学学报 31 1116001]
[14] Wang Z L, Wang Y H, Zhang J C 2008 Chem. Res. Chin. Univ. 24 679
[15] Zhong R X, Zhang J H, Li M Y, Wang X Q 2012 Acta Phys. Sin. 61 117801 (in Chinese) [钟瑞霞, 张家骅, 李明亚, 王晓强 2012 61 117801]
[16] Xu W, Li C R, Chen B J, Feng Z Q 2010 Acta Phys. Sin. 59 1328 (in Chinese) [徐伟, 李成仁, 陈宝玖, 冯志 2010 59 1328]
[17] Zhang Q H, Wang J, Ni H Y, Wang L L 2012 Rare Met. 31 35
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