Strontium gallate luminescent material and preparation method thereof
A technology of luminescent materials and gallic acid, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of limited application of field emission light sources, low luminous efficiency of cathode rays, etc., and achieve improved luminous efficiency, less harsh process conditions, and process steps less effect
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Embodiment 1
[0028] Preparation of Sr by sol-gel method 0.9 Ga 2 o 4 :Eu 0.1 ,Pd 1×10-5 :
[0029] Preparation of Pd nanoparticle sol: Weigh 0.22 mg palladium chloride (PdCl 2 2H 2 O) Dissolved in 10mL of deionized water; when the palladium chloride was completely dissolved, weigh 11.0mg of sodium citrate and 4.0mg of sodium lauryl sulfate, and dissolve them in an aqueous solution of palladium chloride under a magnetic stirring environment; Weigh 0.38mg sodium borohydride and dissolve it in 100mL deionized water to obtain a concentration of 1×10 -4 mol / L sodium borohydride reducing solution; in the environment of magnetic stirring, quickly add 10mL1×10 -4 sodium borohydride aqueous solution, and then continue to react for 20min to obtain 20mL Pd content of 5×10 -5 mol / L Pd nanoparticle sol.
[0030] Weigh 0.7729g Sr(CH 3 COO) 2 , 2.0698g Ga(CH 3 COO) 3 and 0.1316g Eu(CH 3 COO) 3 Put it in a container, then add 50mL of a mixed solution of ethanol and water with a volume ratio...
Embodiment 2
[0033] Preparation of Sr by sol-gel method 0.8 Ga 2 o 4 :Eu 0.2 ,Au 1×10-2 :
[0034] Preparation of Au nanoparticle sol: Weigh 41.2 mg of chloroauric acid (AuCl 3 ·HCl·4H 2 O) Dissolve in 10mL of deionized water; when the chloroauric acid is completely dissolved, weigh 14mg of sodium citrate and 6mg of cetyltrimethylammonium bromide, and dissolve them into the chloroauric acid aqueous solution under magnetic stirring Medium; Weigh 3.8mg of sodium borohydride and 17.6mg of ascorbic acid and dissolve them in 10mL deionized water respectively to obtain 10mL concentration of 1×10 -2 mol / L sodium borohydride aqueous solution and 10mL concentration is 1×10 -2 mol / L ascorbic acid aqueous solution; in the environment of magnetic stirring, first add 5mL sodium borohydride aqueous solution to the chloroauric acid aqueous solution, stir and react for 5min, then add 5mL1×10 -2 mol / L ascorbic acid aqueous solution, and then continue to react for 30min to obtain 20mL Au content of ...
Embodiment 3
[0038] Preparation of Sr by sol-gel method 0.98 Ga 2 o 4 :Eu 0.02 , Ag 2.5×10-4 :
[0039] Preparation of Ag nanoparticles sol: weigh 3.4 mg silver nitrate (AgNO 3 ) into 18.4mL of deionized water; when the silver nitrate is completely dissolved, weigh 42mg of sodium citrate and dissolve it in the silver nitrate aqueous solution under magnetic stirring; weigh 5.7mg of sodium borohydride and dissolve it in 10mL of deionized water, Obtain 10mL concentration as 1.5×10 -2 mol / L sodium borohydride aqueous solution; under the environment of magnetic stirring, add 1.6mL1.5×10 -2 mol / L sodium borohydride aqueous solution, and then continue to react for 10min to obtain 20mL Ag content of 1×10 -3 mol / L of Ag nanoparticles sol.
[0040] Weigh 0.8296g Sr(NO 3 ) 2 , 2.0459g Ga(NO 3 ) 3 and 0.0270g Eu(NO 3 ) 3 Put it in a container, then add 50mL of a mixed solution of ethanol and water with a volume ratio of 8:1, add 5.7635g of citric acid and 5g of polyethylene glycol 10000 ...
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