Dy3+ doping enhanced Tb3+ emission fluorescence powder
A phosphor, 3al5o12 technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of low theoretical density, low energy conversion efficiency, and uneven particle size distribution.
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Embodiment 2
[0026] A Dy 3+ Doping enhanced Tb 3+ Emitting fluorescent powder, the preparation method is as follows:
[0027] Raw materials used: Gd 2 o 3 (99.99%), Tb 4 o 7 (99.99%), Dy 2 o 3 (99.99%), Al(NO 3 ) 3 9H 2 O (99.0%), NH 4 HCO 3 (99.0%), nitric acid (HNO 3 , 68%);
[0028] (1) Powdered Gd 2 o 3 , Tb 4 o 7 and Dy 2 o 3 respectively dissolved in hot nitric acid to remove excess HNO 3 Dubbed rare earth nitrate solution;
[0029] (2) Press (Gd 0.9-x Tb 0.1 Dy x ) 3 Al 5 o 12 (x=0) The stoichiometric ratio measures rare earth nitrate, Al(NO 3 ) 3 Solution, add deionized water to make a solution with a volume of 100mL, stir for 30min, so that the mother salt solution is evenly mixed;
[0030] (3) Weigh an appropriate amount of NH 4 HCO 3 Dissolve in deionized water, place in a constant temperature water bath, adjust the temperature to 25°C and stir until NH 4 HCO 3 dissolve;
[0031] (4) Pour the mixture obtained in step (2) into a pear-shaped funne...
Embodiment 3
[0035] A Dy 3+ Doping enhanced Tb 3+ Emitting fluorescent powder, the preparation method is as follows:
[0036] Raw materials used: Gd 2 o 3 (99.99%), Tb 4 o 7 (99.99%), Dy 2 o 3 (99.99%), Al(NO 3 ) 3 9H 2 O (99.0%), NH 4 HCO 3 (99.0%), nitric acid (HNO 3 , 68%);
[0037] (1) Powdered Gd 2 o 3 , Tb 4 o 7 and Dy 2 o 3 respectively dissolved in hot nitric acid to remove excess HNO 3 Dubbed rare earth nitrate solution;
[0038] (2) Press (Gd 0.9-x Tb 0.1 Dy x ) 3 Al 5 o 12 (x=0.01) stoichiometric ratio to measure rare earth nitrate, Al(NO 3 ) 3 Solution, add deionized water to make a solution with a volume of 100mL, stir for 30min, so that the mother salt solution is evenly mixed;
[0039] (3) Weigh an appropriate amount of NH 4 HCO 3 Dissolve in deionized water, place in a constant temperature water bath, adjust the temperature to 25°C and stir until NH 4 HCO 3 dissolve;
[0040] (4) Pour the mixture obtained in step (2) into a pear-shaped funn...
Embodiment 4
[0044] A Dy 3+ Doping enhanced Tb 3+ Emitting fluorescent powder, the preparation method is as follows:
[0045] Raw materials used: Gd 2 o 3 (99.99%), Tb 4 o 7 (99.99%), Dy 2 o 3 (99.99%), Al(NO 3 ) 3 9H 2 O (99.0%), NH 4 HCO 3 (99.0%), nitric acid (HNO 3 , 68%);
[0046] (1) Powdered Gd 2 o 3 , Tb 4 o 7 and Dy 2 o 3 respectively dissolved in hot nitric acid to remove excess HNO 3 Dubbed rare earth nitrate solution;
[0047] (2) Press (Gd 0.9-x Tb 0.1 Dy x ) 3 Al 5 o 12 (x=0.02) stoichiometric ratio to measure rare earth nitrate, Al(NO 3 ) 3 Solution, add deionized water to make a solution with a volume of 100mL, stir for 30min, so that the mother salt solution is evenly mixed;
[0048] (3) Weigh an appropriate amount of NH 4 HCO 3 Dissolve in deionized water, place in a constant temperature water bath, adjust the temperature to 25°C and stir until NH 4 HCO 3 dissolve;
[0049] (4) Pour the mixture obtained in step (2) into a pear-shaped funn...
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