Reduction of Tb^4+ ions in luminescent Y2O3:Tb nanorods prepared by microwave hydrothermal method  

作　　者：Jaroslaw Kaszewski Bartlomiej S. Witkowski Lukasz Wachnicki Hanka Przybylinska Boleslaw Kozankiewicz Ewa Mijowska Marek Godlewski 

机构地区：[1]Institute of Physics,Polish Academy of Sciences, al. Lotnik6w 32/46, 02-668 Warsaw, Poland [2]Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, ul. Putaslego 10, 70-322 Szczecin, Poland

出　　处：《Journal of Rare Earths》2016年第8期774-781,共8页稀土学报（英文版）

基　　金：Project supported by European Union within European Regional Development Fund,through Grant Innovative Economy(POIG.01.01.02-00-008/08)

摘　　要：Terbium doped yttrium oxide was prepared with the microwave hydrothermal method. The Y2O3：Tb nanomaterial crystal- lized as needle-like grains. Bright luminescence in the green region was observed. Significant luminescence intensity increase was obtained after thermal treatment. Reduction of terbium ions was observed after heating in the air atmosphere. Tb4＋ ions were found to be stabilized by crystal impurities. Hydroxyl species were found to have impact on vacancies elimination. The terbium ions were used as optical and magnetic indicator of the material properties.Terbium doped yttrium oxide was prepared with the microwave hydrothermal method. The Y2O3：Tb nanomaterial crystal- lized as needle-like grains. Bright luminescence in the green region was observed. Significant luminescence intensity increase was obtained after thermal treatment. Reduction of terbium ions was observed after heating in the air atmosphere. Tb4＋ ions were found to be stabilized by crystal impurities. Hydroxyl species were found to have impact on vacancies elimination. The terbium ions were used as optical and magnetic indicator of the material properties.

关 键 词：yttrium oxide TERBIUM luminescence biomarkers abnormal reduction rare earths 

分 类 号：TQ134.32[化学工程—无机化工] TN312.8[电子电信—物理电子学]