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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.
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 The deposited films could absorb the ultra-violet light below 400 nm and were transparent in the visible and infrared regions 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.