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Nano Convergence
Fig. 3 | Nano Convergence

Fig. 3

From: Water-stable, biocompatible, and highly luminescent perovskite nanocrystals-embedded fiber-based paper for anti-counterfeiting applications

Fig. 3

Anti-counterfeiting applications. a The pattern stamped on PCL-perovskite fibers-based white paper using white ink under daylight and UV light (365 nm). b Alphabet “NPL”, Sun, QR code, and logo of “Yonsei University” patterns printed with black color ink using an inkjet printer via a reverse printing approach on the fluorescent PCL-perovskite fibers-based white paper

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