Bi<3+>-doped fluorescent powder for enhancing Ce<3+> yellow luminescence
A fluorescent powder and yellow light technology, which is applied in the direction of luminescent materials, chemical instruments and methods, etc.
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Embodiment 2
[0028] A Bi 3+ Doping enhanced Ce 3+ Phosphor powder emitting yellow light, the preparation method is as follows:
[0029] Raw materials used: Gd 2 o 3 (99.99%), Y 2 o 3 (99.99%), CeO 2 (99.99%), Bi(NO 3 ) 3 ·5H 2 O (99.0%), Al (NO 3 ) 3 9H 2 O (99.0%), NH 4 HCO 3 (99.0%), nitric acid (HNO 3 , 68%);
[0030] (1) Powdered Gd 2 o 3 , Y 2 o 3 and CeO 2respectively dissolved in hot nitric acid to remove excess HNO 3 Dubbed rare earth nitrate solution;
[0031] (2) Press (Gd 0.75-x Y 0.2 Bi 0.05 Ce x ) 3 Al 5 o 12 ( x =0.001) stoichiometric ratio to measure rare earth nitrate, Bi(NO 3 ) 3 solution and Al(NO 3 ) 3 solution, add deionized water to make a solution with a volume of 100 mL, stir for 10 min, and mix the mother salt solution evenly;
[0032] (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;
[0033...
Embodiment 3
[0037] A Bi 3+ Doping enhanced Ce 3+ Phosphor powder emitting yellow light, the preparation method is as follows:
[0038] Raw materials used: Gd 2 o 3 (99.99%), Y 2 o 3 (99.99%), CeO 2 (99.99%), Bi(NO 3 ) 3 ·5H 2 O (99.0%), Al (NO 3 ) 3 9H 2 O (99.0%), NH 4 HCO 3 (99.0%), nitric acid (HNO 3 , 68%);
[0039] (1) Powdered Gd 2 o 3 , Y 2 o 3 and CeO 2 respectively dissolved in hot nitric acid to remove excess HNO 3 Dubbed rare earth nitrate solution;
[0040] (2) Press (Gd 0.75-x Y 0.2 Bi 0.05 Ce x ) 3 Al 5 o 12 ( x =0.003) stoichiometric ratio to measure rare earth nitrate, Bi(NO 3 ) 3 solution and Al(NO 3 ) 3 solution, add deionized water to make a solution with a volume of 100 mL, stir for 10 min, and mix the mother salt solution evenly;
[0041] (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;
[004...
Embodiment 4
[0046] A Bi 3+ Doping enhanced Ce 3+ Phosphor powder emitting yellow light, the preparation method is as follows:
[0047] Raw materials used: Gd 2 o 3 (99.99%), Y 2 o 3 (99.99%), CeO 2 (99.99%), Bi(NO 3 ) 3 ·5H 2 O (99.0%), Al (NO 3 ) 3 9H 2 O (99.0%), NH 4 HCO 3 (99.0%), nitric acid (HNO 3 , 68%);
[0048] (1) Powdered Gd 2 o 3 , Y 2 o 3 and CeO 2 respectively dissolved in hot nitric acid to remove excess HNO 3 Dubbed rare earth nitrate solution;
[0049] (2) Press (Gd 0.75-x Y 0.2 Bi 0.05 Ce x ) 3 Al 5 o 12 ( x =0.005) stoichiometric ratio to measure rare earth nitrate, Bi(NO 3 ) 3 solution and Al(NO 3 ) 3 solution, add deionized water to make a solution with a volume of 100 mL, stir for 10 min, and mix the mother salt solution evenly;
[0050] (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;
[005...
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