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Anti-counterfeiting System Options

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Here, we present the luminescent anti-counterfeiting varnish modified with NaErF4:Tm3+@NaYF4 UCNPs to safeguard paper or other surfaces. This get the job done demonstrates the effect of co-doping the NaErF4 core with Tm3+ ions during the Main@shell NaErF4:Tm3+@NaYF4 UCNPs and the development of UC depth. The Power trapping centers formation, which https://agendabookmarks.com/story13651132/the-5-second-trick-for-anti-counterfeit-solution

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