Praseodymium-holmium-codoped aluminate up-conversion luminescence material, and preparation method and application thereof
A technology of luminescent materials and co-doping, applied in luminescent materials, chemical instruments and methods, semiconductor devices, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0028] The preparation method of the above-mentioned praseodymium-holmium co-doped aluminate up-conversion luminescent material comprises the following steps;
[0029] Step S101, according to Me 1-x-y AlO 2 :xPr 3+ ,yHo 3+ The stoichiometric ratio of each element is measured as MeO, Al 2 o 3 ,Pr 2 o 3 and Ho 2 o 3 Powder, wherein, x is 0.002~0.06, y is 0.002~0.04, Me is Mg, Ca, Sr, Ba or Zn.
[0030] Preferably, x is 0.03 and y is 0.01.
[0031] It can be understood that in this step, MeO and Al can also be weighed according to the molar ratio (0.9~0.996):1:(0.002~0.04):(0.002~0.04) 2 o 3 ,Pr 2 o 3 and Ho 2 o 3 Powder.
[0032] Preferably, in this step, MeO and Al can also be weighed according to the molar ratio of 0.96:1:0.03:0.01 2 o 3 ,Pr 2 o 3 and Ho 2 o 3 Powder.
[0033] Step S102 , dissolving the weighed powder in nitric acid to prepare a solution with a metal cation concentration of 0.5 mol / L-3 mol / L.
[0034] The metal cation in solution is Me ...
Embodiment 1
[0050] Weigh MgO, Al 2 o 3 ,Pr 2 o 3 and Ho 2 o 3 Powder, MgO, Al 2 o 3 ,Pr 2 o 3 and Ho 2 o 3 The molar ratio of the powder is 0.96:1:0.015:0.005, dissolved in nitric acid to prepare a 1.5mol / L solution, and 0.01mol / L polyethylene glycol additive is added. Then put the solution into the atomization device, and then feed 5 L / min of argon gas into the atomization device. The solution precursor enters a quartz tube with a temperature of 180°C along with the argon carrier gas to generate the precursor, wherein the diameter of the quartz tube is 95mm and the length is 1.4m. Then the phosphor enters the condenser along with the airflow, and is finally collected by the microporous acid-resistant filter funnel. Collect the precursor of the phosphor powder, place it in a temperature-programmed furnace and calcinate for 3 hours at a calcining temperature of 1100°C to obtain Mg 0.96 AlO 2 : 0.03Pr 3+ , 0.01Ho 3+ Up-converting phosphors.
[0051] see image 3 , image ...
Embodiment 2
[0054] Weigh MgO, Al 2 o 3 ,Pr 2 o 3 and Ho 2 o 3 Powder, MgO, Al 2 o 3 ,Pr 2 o 3 and Ho 2 o 3 The molar ratio of the powder is 0.9:1:0.03:0.02, dissolved in nitric acid to prepare a 3mol / L solution, and 0.05mol / L polyethylene glycol additive is added. Then put the solution into the atomization device, and then feed 15 L / min argon gas into the atomization device. The solution precursor enters a quartz tube with a temperature of 220°C along with the argon carrier gas to generate the precursor, wherein the diameter of the quartz tube is 150mm and the length is 3m. Then the phosphor enters the condenser along with the airflow, and is finally collected by the microporous acid-resistant filter funnel. Collect the precursor of the phosphor, place it in a temperature-programmed furnace and calcinate it for 5 hours at a calcining temperature of 1300°C to obtain Mg 0.9 AlO 2 :0.06Pr 3+ , 0.04Ho 3+ Up-converting phosphors.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More