Blue light up-conversion luminescent material and preparation method thereof
A luminescent material, blue light technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of increasing particle surface defects, reducing the performance of luminescent materials, bulk lattice defects, etc., to achieve reduced contact and agglomeration opportunities, less agglomeration , the effect of small average particle size
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Embodiment 1
[0031] Embodiment 1: polymer network gel method prepares Y 0.49 (PO 3 ):Tm 0.01 , Yb 0.5 Blue light up-conversion luminescent material: Y(NO 3 ) 3 ·6H 2 O, Tm (NO 3 ) 3 ·6H 2 O, Yb(NO 3 ) 3 ·6H 2 O and (NH 4 )2 HPO 4 As the main raw material, prepare solutions containing Y, Tm, Yb and P solutions at concentrations of 0.5 mol / L, 0.1 mol / L, 0.1 mol / L, and 1.0 mol / L, respectively. According to the ratio of n(La+Tm+Yb):n(P) of 1:3, Y with a concentration of 0.5 mol / L was taken respectively 3+ Tm of solution 1.96 mL, 0.1 mol / L 3+ Solution 0.20 mL, 0.1 mol / L Yb 3+ Solution 10.00 mL, 1.0 mol / L (NH 4 ) 2 HPO 4 Solution 6.00 mL and 10.00 mLH 2 0 to a 100 mL beaker and mix evenly to obtain a mixed ion solution; respectively weigh 3.00 g of acrylamide and 0.25 g of N,N-methylenebisacrylamide at a mass ratio of 12:1 and add them to the mixed ion solution. Stir for 1 h; adjust the pH of the mixed ion solution to 1; then place the solution at 80 o Stir in the water bath...
Embodiment 2
[0032] Embodiment 2: polymer network gel method prepares Y 0.99-y (PO 3 ):Tm 0.01 , Yb y blue ( y =0.40, 0.45,0.5, 0.55, 0.60) series of up-conversion luminescent materials: YCl 3 ·6H 2 O, TmCl 3 ·6H 2 O, YbCl 3 ·6H 2 O and (NH 4 ) 2 HPO 4 As the main raw material, prepare solutions containing Y, Tm, Yb and P solutions at concentrations of 0.5 mol / L, 0.1 mol / L, 0.1 mol / L, and 1.0 mol / L, respectively. According to the ratio of n(La+Tm+Yb):n(P) of 1:3, take five parts of Tm with a concentration of 0.1 mol / L 3+ Solution 0.20 ml and 1.0 mol / L (NH 4 ) 2 HPO 4 Solution 6.00 mL to fill with 10.00 mL H 2 100.00 mL of O in beaker A, beaker B, beaker C, beaker D and beaker E, according to Yb 3+ The doping amount was designed to be 40%, 45, 50%, 55% and 60%, and 0.5 mol / L of Y was added to beaker A, beaker B, beaker C, beaker D and beaker E respectively 3+ Solution 2.36 mL, 2.16 mL, 1.96, 1.76 and 1.56 mL, then add 0.1 mol / L Yb in beaker A, beaker B, beaker C, beaker ...
Embodiment 3
[0033] Embodiment 3: polymer network gel method prepares Y 0.49 (PO 3 ):Tm 0.01 , Yb 0.5 Blue light up-conversion luminescent material: in Y 2 o 3 、Tm 2 o 3 , Yb 2 o 3 and (NH 4 ) 2 HPO 4 As the main raw material, a certain amount of rare earth oxides was weighed and dissolved in concentrated nitric acid, and the corresponding rare earth-containing solution was obtained after heating and decomposing the excess concentrated nitric acid. L, 0.1 mol / L, 0.1 mol / L, 1.0 mol / L solutions. According to the ratio of n(La+Tm+Yb):n(P) of 1:5, Y with a concentration of 0.5 mol / L was taken respectively 3+ Tm of solution 1.96 mL, 0.1 mol / L 3+ Solution 0.2 mL, 0.1 mol / L Yb 3+ Solution 10.00 mL, 1.0 mol / L (NH 4 ) 2 HPO 4 Solution 10.00 mL and 10.00 mL H 2 0 to a 100 mL beaker and mix evenly to obtain a mixed ion solution; respectively weigh 3 g of acrylamide and 0.25 g of N,N-methylenebisacrylamide at a mass ratio of 12:1 and add them to the mixed ion solution, and magnetical...
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