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Design of core/active-shell NaYF4:Ln3+@NaYF4:Yb3+ nanophosphors with enhanced red-green-blue upconversion luminescence for anti-counterfeiting printing

Materials ScienceEngineeringAnti-counterfeiting PrintingNanomaterialsNanotechnologyUpconversion LuminescenceCore/active-shell Nayf4ChemistryLuminescence PropertyPhosphorescence