Issue 27, 2023

Recent advances in the anti-counterfeiting applications of long persistent phosphors

Abstract

Counterfeit products have infiltrated numerous regions worldwide, causing substantial damage to the financial interests of individuals, businesses, and countries. Moreover, counterfeit goods can pose a severe risk to human health. Therefore, it is crucial to develop effective anti-counterfeiting methods and authentication technologies. Persistent luminescence (PersL) materials show great potential for anti-counterfeiting applications due to their distinctive spatial and temporal dynamic spectrum performance. The unique luminescence properties of PersL materials enable the creation of optical codes with high capacity. In this perspective, we provide a summary of the latest advancements in anti-counterfeiting technology using long persistent phosphors. We discuss the various construction strategies of optical codes for anti-counterfeiting, which include multicolor luminescence, orthogonal luminescence, dynamic luminescence, and stimulus-response luminescence. In addition, we explore the mechanisms of PersL-based anti-counterfeiting materials and consider potential areas for future development to expand the applications of persistent phosphors.

Graphical abstract: Recent advances in the anti-counterfeiting applications of long persistent phosphors

Article information

Article type
Perspective
Submitted
20 apr. 2023
Accepted
09 jún. 2023
First published
12 jún. 2023

Phys. Chem. Chem. Phys., 2023,25, 17759-17768

Recent advances in the anti-counterfeiting applications of long persistent phosphors

Q. Kuang, X. Hou, C. Du, X. Wang and D. Gao, Phys. Chem. Chem. Phys., 2023, 25, 17759 DOI: 10.1039/D3CP01818K

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