Construction of up-conversion material combined signal quenching sensing device
A technology for converting materials and sensing devices, which is applied in the analysis of materials, electrochemical variables of materials, and material analysis by electromagnetic means. It can solve problems such as cell damage and human injury, and achieve low light damage, low cost, and high light stability. sexual effect
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[0019] In order to further understand the present invention, according to the technical solution of the present invention, the implementation is carried out in conjunction with the examples, and the specific embodiments are given:
[0020] (1) Synthesis of NaYF 4 :Yb,Er: Dissolve 1.176 g of trisodium citrate in 5 mL of water, then add 1 mmol of Ln(NO 3 ) 3 (74.4% Y 3+ , 25% Yb 3+ , 0.1% Er 3+ ) and 3 g NaNO 3 , and stirred for 20 min; after that, sodium fluoride solution (0.252 g NaF dissolved in 5 mL of water) was added and stirred well; the above solution was transferred to a 20 mL polytetrafluoroethylene-lined autoclave and heated at 180 °C for 12 h; the product was then isolated by centrifugation and further washed with water and ethanol; finally, it was dried in a vacuum oven at 60 °C overnight.
[0021] (2) Synthesis of NaYF 4 :Yb, Er@Bi 2 MoO 6 @Bi: put 5.0 mmol Bi (NO 3 ) 3 ·5H 2 O and 0.1 g of step (1) and synthesized product were transferred into 10 mL of...
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