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Luminescence materials have received extensive attention for anti-counterfeiting applications due to their low-cost fabrication and simple verification advantages. However, single-emitting encryption can be easily cracked. Therefore, the development of multi-responsive anti-counterfeiting strategies is urgent. Here, we report a facile and universal method to fabricate ultraviolet and infrared excitable inorganic-organic hybrid materials that consist of up-conversion nanoparticles (UCNPs) and organic afterglow materials. With this method, UCNPs can be assembled onto organic afterglow materials driven by the electrostatic interactions between the two com-ponents. As a proof-of-concept, a NaYF4: Yb, Er UCNPs@catechol-doped cyanuric acid (cd-CA) composite was designed and served as a secret anti-counterfeiting ink material. The security label using the hybrid material as an information carrier shows multiple encryption signals, such as fluorescence, up-conversion, phosphorescence, and infrared thermal imaging, increasing security.
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MATERIALS TODAY PHYSICS
ISSN: 2542-5293
Year: 2023
Volume: 31
1 0 . 0
JCR@2023
1 0 . 0 0 0
JCR@2023
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:49
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 3
SCOPUS Cited Count: 5
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1