Rare-earth doped tantalic acid salt transparent luminous thin-film and preparation thereof
A technology of light-emitting thin film and rare earth doping, which is applied in light-emitting materials, chemical instruments and methods, etc., can solve the problems that are not involved in the field of thin-film light-emitting, and achieve the effects of speeding up the preparation cycle, avoiding the protective atmosphere, and controlling the structure.
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Embodiment 1
[0014] Gd 0.9 TaO 4 :Eu 0.1 preparation of
[0015] At room temperature, 2 ml of concentrated HNO 3 Add 30ml of absolute ethanol, then add 0.9mmol of Gd 2 o 3 and 0.1 mmol of doped ion oxide Eu 2 o 3 Add it to the ethanol solution, heat and stir at 79°C to dissolve the oxide. Dissolve 2 mmol of TaCl in 20 ml of ethanol 5 , and added to the above clear solution, stirred and refluxed for 3 hours, added 1ml polyethylene glycol 200, and then continued to reflux for 1 hour. Finally, it was naturally cooled to room temperature, and after aging for 8 hours, the required sol for coating was obtained. Choose clean quartz or optical glass as the substrate, and use the method of spin coating to coat the film. The film thickness can be adjusted by changing the rotation speed. The spin-coated wet gel film is quickly placed in an infrared oven for thermal decomposition pretreatment for 2 to 5 minutes, and then the dry gel film is subjected to ultraviolet light strengthening treatm...
Embodiment 2
[0017] Gd 0.95 TaO 4 :Tb 0.05 preparation of
[0018] At room temperature, 4 ml of concentrated HNO 3 Add 30ml of absolute ethanol, then add 0.95mmol of Gd 2 o 3 and 0.025 mmol of doped ion oxide Tb 4 o 7 Add it to the ethanol solution, heat and stir at 79°C to dissolve the oxide. Dissolve 2 mmol of TaCl in 20 ml of ethanol 5 , and added to the above clear solution, stirred and refluxed for 3 hours, added 1ml polyethylene glycol 200, and then continued to reflux for 1 hour. Finally, it was naturally cooled to room temperature, and after aging for 8 hours, the required sol for coating was obtained. Choose clean quartz or optical glass as the substrate, and use the method of spin coating to coat the film. The film thickness can be adjusted by changing the rotation speed. The spin-coated wet gel film is quickly placed in an infrared oven for thermal decomposition pretreatment for 2 to 5 minutes, and then the dry gel film is subjected to ultraviolet light strengthening t...
Embodiment 3
[0020] Lu 0.9 TaO 4 :Eu 0.1 preparation of
[0021] At room temperature, 2 ml of concentrated HNO 3 Add 30ml of absolute ethanol, then add 0.9mmol of Lu 2 o 3 and 0.1 mmol of doped ion oxide Eu 2 o 3 Add it to the ethanol solution, heat and stir at 79°C to dissolve the oxide. Dissolve 2 mmol of TaCl in 20 ml of ethanol 5, and added to the above clear solution, stirred and refluxed for 3 hours, added 1ml polyethylene glycol 200, and then continued to reflux for 1 hour. Finally, it was naturally cooled to room temperature, and after aging for 8 hours, the required sol for coating was obtained. Process is with embodiment 1. The surface of the film is uniform, dense and free of cracks, and has good adhesion to the substrate. Under the irradiation of ultraviolet light or X-rays, the film glows red.
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