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Pressure and temperature dependent up-conversion properties of Yb3+-Er3+ co-doped BaBi4Ti4O15 ferroelectric ceramics

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【作者】 戚兴国； 随志磊； 邓宇航； 代如成； 王中平； 张增明； 丁泽军；

【Author】 QI Xingguo;SUI Zhilei;DENG Yuhang;DAI Rucheng;WANG Zhongping;ZHANG Zengming;DING Zejun;Department of Physics, University of Science and Technology of China;The Centre for Physical Experiments, University of Science and Technology of China;Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China;

【机构】 Department of Physics, University of Science and Technology of China； The Centre for Physical Experiments, University of Science and Technology of China； Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China；

【摘要】 Yb3+ and Er3+ co-doped BaBi4Ti4O15(BBT) ceramic samples showed brighter up-conversion photoluminescence(UC-PL) under excitation of 980 nm. The monotonous increase of fluorescence intensity ratio(FIR) from 525 to 550 nm with temperature showed that this material could be used for temperature sensing with the maximum sensitivity to be 0.0046 K–1 and the energy difference was 700 cm–1. Moreover, the sudden change of red and green emissions around 400 oC might imply a phase transition. With increasing pressure up to 4 GPa, the PL intensity decreased but was still strong enough. These results illustrated the wide applications of BBT in high temperature and high pressure conditions.

【Abstract】 Yb3+ and Er3+ co-doped BaBi4Ti4O15(BBT) ceramic samples showed brighter up-conversion photoluminescence(UC-PL) under excitation of 980 nm. The monotonous increase of fluorescence intensity ratio(FIR) from 525 to 550 nm with temperature showed that this material could be used for temperature sensing with the maximum sensitivity to be 0.0046 K–1 and the energy difference was 700 cm–1. Moreover, the sudden change of red and green emissions around 400 oC might imply a phase transition. With increasing pressure up to 4 GPa, the PL intensity decreased but was still strong enough. These results illustrated the wide applications of BBT in high temperature and high pressure conditions.

【关键词】 BaBi4Ti4O15； piezoelectric ceramic； rare earths； up-conversion； pressure； temperature；
【Key words】 BaBi4Ti4O15； piezoelectric ceramic； rare earths； up-conversion； pressure； temperature；
【基金】 Project supported by Fund for Fostering Talents in Basic Science of the National Natural Science Foundation of China(J1103207);the National Natural Science Foundation of China(11274288,21002097);the National Basic Research Program of China(2011CB932801,2012CB933702);Ministry of Education of China(20123402110034)
  • 【文献出处】 Journal of Rare Earths ,稀土学报(英文版) , 编辑部邮箱 ,2014年09期
  • 【分类号】TQ174.1
  • 【被引频次】9
  • 【下载频次】42
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