Ascorbic acid mediated fluorescence emission of MnO2 modified upconversion nanoparticles for anti-counterfeiting

Anti-counterfeiting ink can prevent important documents from being forged or tampered with. We reported a strategy to improve upconversion luminescence intensity of NaYF4:18%Yb3+,0.5%Tm3+ core nanoparticles (NPs) by coating the NaYF4 shell. We synthesized NaYF4:18%Yb3+,0.5%Tm3+ core NPs and NaYF4:18...

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Veröffentlicht in:	RSC advances 2024-10, Vol.14 (45), p.33061-33067
Hauptverfasser:	Zhang, Yongling, Liu, Xiang, Wang, Yuhai, Song, Mingxing, Qin, Zhengkun
Format:	Artikel
Sprache:	eng
Schlagworte:	Ascorbic acid Chemistry Counterfeiting Documents Fluorescence Fluorides High temperature Irradiation Luminescence Manganese dioxide Nanomaterials Nanoparticles Reducing agents Sodium compounds Synthesis Thermal decomposition Thulium Upconversion
Online-Zugang:	Volltext
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