2022
DOI: 10.1016/j.jlumin.2022.118915
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Multi-mode excited Cs2NaBiCl6 Based Double Perovskite Phosphor for Anti-counterfeiting

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Cited by 32 publications
(17 citation statements)
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“…Cs 2 NaBiCl 6 has multi-luminescent properties, exhibiting the potential application in security field. 54,55 We propose a static anti-counterfeiting application at 77 K, where the key target securely attached to an article is immersed in liquid nitrogen and is examined under white light, Hg-254 nm radiation and Hg-365 nm radiation. The colour changes in Fig.…”
Section: The Photoluminescent Properties In Nir and Ir Regionsmentioning
confidence: 99%
“…Cs 2 NaBiCl 6 has multi-luminescent properties, exhibiting the potential application in security field. 54,55 We propose a static anti-counterfeiting application at 77 K, where the key target securely attached to an article is immersed in liquid nitrogen and is examined under white light, Hg-254 nm radiation and Hg-365 nm radiation. The colour changes in Fig.…”
Section: The Photoluminescent Properties In Nir and Ir Regionsmentioning
confidence: 99%
“…Information security is of great significance in the development of enterprises, social stability, military security, and even personal daily life. Over the past few decades, a wide variety of technologies, including markering, holograms, magnetism, plasmonic labels, and luminescence, have been investigated for use in anticounterfeiting and information encryption. Among these technologies, luminescence has demonstrated great potential because of its timeliness, simplicity, multiencoding dimensions, and low cost. So far, diverse luminescent materials featuring photoluminescence (PL), thermoluminescence (TL), upconversion luminescence (UCL), downconversion luminescence (DCL), persistent luminescence (PersL), mechanoluminescence (ML), and photostimulated luminescence (PSL) have been widely developed for high-level encryption. However, most PL-based anticounterfeiting labels are easily falsified by certain alternatives due to their static luminescence color and intensity, single-emission mode, or simple design . Therefore, dynamic optical materials with multimode luminescence characteristics are highly desired for advanced anticounterfeiting and information encryption applications. …”
Section: Introductionmentioning
confidence: 99%
“…9,10 Although substantial anti-counterfeiting technologies, such as luminescence anti-fake method, have been explored, the conventional luminescent materials still have some serious drawbacks including low emission efficiency and intensity contrast and so forth. 11,12 To overcome these environmental, economic, and security issues, rewritable paper is progressively developed as an excellent candidate, which possesses high repeatability of realizing the write−erase−write cycle and concealment of information, avoiding information leakage and forgery. 13−15 In the past several decades, substantial research work has been done to develop versatile chromogenic materials to fabricate recycled paper.…”
Section: ■ Introductionmentioning
confidence: 99%
“…Nowadays, although modern electronic technology has changed the way of information storage and communication in this digital age, paper remains the most important printing material in our daily lives and the total consumption is still persistently increasing every year. However, most of the printed papers are directly disposed after only one-time reading in a short time, which results in a serious energy consumption and environment problem, such as solid waste and chemical pollution. , Unfortunately, the printed information on paper is easily copied and counterfeited, leading to information leakage in various important fields including military, economics, and technology and in our daily life. , Information security has become an important international concern, and severe information leakage would result in unimaginable consequences, such as copyright dispute, economic conflict, and even international war. , Although substantial anti-counterfeiting technologies, such as luminescence anti-fake method, have been explored, the conventional luminescent materials still have some serious drawbacks including low emission efficiency and intensity contrast and so forth. , To overcome these environmental, economic, and security issues, rewritable paper is progressively developed as an excellent candidate, which possesses high repeatability of realizing the write–erase–write cycle and concealment of information, avoiding information leakage and forgery. …”
Section: Introductionmentioning
confidence: 99%