Dy3+ activated LaVO4 films synthesized by precursors with different solution concentrations
来源期刊：Journal of Rare Earths2012年第4期
论文作者：吴丹丹 马永青 张贤 钱仕兵 郑赣鸿 吴明在 李广 孙兆奇
文章页码：325 - 329
摘 要：Using different-solution-concentration precursors with citric acid as chelating agent and polyvinyl alcohol as dispersing media, Dy3+ activated LaVO4 films were deposited on indium tin oxide （ITO） substrates. The scanning electronic microscope （SEM） showed that the compact and crack-free LaVO4:Dy3+ film could be obtained at a suitable solution concentration. The deposited films could absorb the ultra-violet light below 400 nm and were transparent in the visible and infrared region as evidenced by the transmission spectra, and the photolumines-cence spectra exhibited the characteristic emissions of Dy3+ peaking at 484 （blue） and 576 （yellow） nm due to the transitions of 4F9/2→6H15/2 and 4F9/2→6H13/2, respectively. The potential application of LaVO4:Dy3+ film in the dye-sensitized solar cell （DSSC） was also discussed.
吴丹丹，马永青，张贤，钱仕兵，郑赣鸿，吴明在，李广，孙兆奇
School of Physics and Materials Science, Anhui University
摘 要：Using different-solution-concentration precursors with citric acid as chelating agent and polyvinyl alcohol as dispersing media, Dy3+ activated LaVO4 films were deposited on indium tin oxide （ITO） substrates. The scanning electronic microscope （SEM） showed that the compact and crack-free LaVO4:Dy3+ film could be obtained at a suitable solution concentration. The deposited films could absorb the ultra-violet light below 400 nm and were transparent in the visible and infrared region as evidenced by the transmission spectra, and the photolumines-cence spectra exhibited the characteristic emissions of Dy3+ peaking at 484 （blue） and 576 （yellow） nm due to the transitions of 4F9/2→6H15/2 and 4F9/2→6H13/2, respectively. The potential application of LaVO4:Dy3+ film in the dye-sensitized solar cell （DSSC） was also discussed.
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