| Ho3+掺杂的Ba0.8Sr0.2TiO3厚膜的发光特性 |
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| 引用本文： | 吴继清,章天金,汪竞阳,余琳,潘瑞琨.Ho3+掺杂的Ba0.8Sr0.2TiO3厚膜的发光特性[J].发光学报,2011,32(1):12-15. |
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| 作者姓名： | 吴继清 章天金 汪竞阳 余琳 潘瑞琨 |
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| 作者单位： | 湖北大学 材料科学与工程学院, 湖北 武汉 430062 |
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| 摘 要： | 用丝网印刷法在氧化铝衬底上制备了Ho3+掺杂的Ba0.8Sr0.2TiO3(BST)厚膜.XRD谱表明,随着Ho3+掺杂摩尔分数从0.5%增加到2.0%,BST厚膜的晶格尺寸先增大后减小.在514 nm的氩离子激光激发下,样品均出现了中心波长为549,650,753 nm的发光带,分别对应于Ho3+离子的(5F4,5S...
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| 关 键 词： | Ho3+ BST厚膜 上转换发光 |
| 收稿时间： | 2010-04-14 |
Luminescence Properties of Ho3+: Ba0.8Sr0.2TiO3 Thick Films |
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| WU Ji-qing,ZHANG Tian-jin,WANG Jing-yang,YU Lin,PAN Rui-kun.Luminescence Properties of Ho3+: Ba0.8Sr0.2TiO3 Thick Films[J].Chinese Journal of Luminescence,2011,32(1):12-15. |
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| Authors: | WU Ji-qing ZHANG Tian-jin WANG Jing-yang YU Lin PAN Rui-kun |
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| Institution: | School of Materials Science and Engineering, Hubei University, Wuhan 430062, China |
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| Abstract: | Ho3+ doped Ba0.8Sr0.2TiO3 (BST) thick films were fabricated on alumina substrates by the screen printing techniques. XRD patterns show that the lattice parameters of BST films have a maximum value when Ho3+ concentration is 1.0%. Under 514 nm Ar+ laser excitation, the emission peaks lacate at about 549,650 and 753 nm corresponding to (5F4,5S2)→5I8,5F5→5I8 and (5F4,5S2)→5I7 transition of Ho3+ ion. Under 800 nm laser excitation, blue and green up-conversion luminescence was observed. The blue and green up-conversion luminescence mechanisms were also discussed. The results show that the Ho3+ ∶ BST materials are prospective candidates for applications in new photoelectric devices. |
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| Keywords: | Ho3+ |
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