Praseodymium and holmium co-doped zirconium dioxide up-conversion luminescent material, and preparation method and application thereof
A zirconium dioxide, luminescent material technology, applied in luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc.
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[0027] The preparation method of the above-mentioned praseodymium-holmium co-doped zirconium dioxide up-conversion luminescent material comprises the following steps:
[0028] Step S11, according to ZrO 2 :xPr 3+ ,yHo 3+ The stoichiometric ratio of each element weighs ZrO 2 , Pr 2 o 3 and Ho 2 o 3 Powder, wherein, x is 0.01-0.08, and y is 0.01-0.06.
[0029] In this step, preferably, x is 0.04 and y is 0.03.
[0030] In this step, preferably, ZrO 2 , Pr 2 o 3 and Ho 2 o 3 The molar ratio of each component of the powder is (0.86-0.98): (0.01-0.08): (0.01-0.06);
[0031] More preferably, ZrO 2 , Pr 2 o 3 and Ho 2 o 3 The molar ratio of each component of the powder is 0.93:0.0.04:0.03;
[0032] Step S13, mix and dissolve the powder weighed in step S11 evenly in an acidic solution for crystallization treatment to obtain crystals, dissolve the crystals in a solvent, and then add ammonia water to adjust the pH value to 1-6 to obtain a mixed solution.
[0033] In ...
Embodiment 1
[0044] Use ZrO 2 , Pr 2 o 3 and Ho 2 o 3 The powder is mixed according to the molar number of each component being 0.93mmol, 0.04mmol, and 0.03mmol. After mixing, dissolve in nitric acid solution for crystallization treatment to obtain crystals, then dissolve the crystals in distilled water and add ammonia water to the solution to adjust the pH value to 5. Then the mixed solution was transferred to a stainless steel reaction kettle lined with polytetrafluoroethylene, and kept at 300°C for 3 hours to obtain a precipitate. Then the obtained precipitate was repeatedly washed with ethanol and distilled water, evaporated to dryness at 100°C, and the dried precipitate was put into a muffle furnace and burned for 3 hours at 950°C to obtain the chemical formula ZrO 2 : 0.04Pr 3+ , 0.03Ho 3+ up-converting phosphors.
[0045] Preparation of organic light-emitting diodes The substrate 1 stacked in sequence uses soda-lime glass, the cathode 2 uses a metal Ag layer, and the organic...
Embodiment 2
[0050] Use ZrO 2 , Pr 2 o 3 and Ho 2 o 3 The powder is mixed according to the molar number of each component being 0.98mmol, 0.01mmol, and 0.01mmol. After mixing, it is dissolved in nitric acid solution for crystallization treatment to obtain crystals, and then the crystals are dissolved in distilled water and ammonia water is added to the solution to adjust the pH value to 1. Then the mixed solution was transferred to a stainless steel reaction kettle lined with polytetrafluoroethylene, and kept at 150°C for 2h to obtain a precipitate. Then the obtained precipitate was repeatedly washed with ethanol and distilled water, evaporated to dryness at 100°C, and the dried precipitate was put into a muffle furnace and burned for 2 hours at 800°C to obtain the chemical formula ZrO 2 : 0.01Pr 3+ , 0.01Ho 3+ up-converting phosphors.
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