Controllable thermo-stimulated luminescence in niobate persistent phosphor by constructing the photovoltaic/electrolytic cell for remote intelligent anti-counterfeiting

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161181 - 161181

Опубликована: Март 1, 2025

Язык: Английский

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Advanced Intelligent Anti‐Counterfeiting in a Memory Storage Phosphor Through Response of Charge Carriers to Temperature

Laser & Photonics Review, Год журнала: 2024, Номер unknown

Опубликована: Окт. 30, 2024

Abstract Persistent phosphor as a printing anti‐counterfeiting material has attracted strong attention owing to its inherent luminescent decay process and multi‐mode luminescence characteristics under external field stimulation. However, the dynamic persistent (PersL) pattern of single is only manifested in color changes still faces problem being easily decrypted. Herein, multi‐color with wide range distribution traps developed, which can emit white PersL. In addition, phosphors show an intelligent response thermo‐stimulated ambient temperature via recalling charging traps. The PersL mechanism proposed based on electron transfer between PbO 6 TbO octahedrons through O bridging. Based temperature, high‐throughput multi‐channel be achieved recording layer. This study not provides further insights into mechanism, but also opens new door for constructing responsive materials.

Язык: Английский

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Transformative effects of homo-valence ion doping on persistent luminescence nanophosphors for radiotherapy monitoring

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161412 - 161412

Опубликована: Март 1, 2025

Язык: Английский

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Force‐Induced Ultraviolet C Luminescence of Pr³⁺‐Doped Sr₂P₂O₇ for X‐Ray Dosimetry

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 22, 2024

Mechanoluminescent materials have broad application prospects in advanced displays, stress imaging, and anti-counterfeiting owing to their ability convert mechanical stimuli into light. However, most previous studies focused on the visible near-infrared regions. Although natural ultraviolet C (UVC) light is nearly absent Earth's surface, it plays an important role many fields. Therefore, development of smart capable emitting UVC mechanoluminescence (ML) expanding scenarios ML are significant but challenging. Here property Sr

Язык: Английский

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High-Throughput Information Storage in an Intelligent Response Phosphor

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 17(2), С. 3587 - 3596

Опубликована: Дек. 31, 2024

Persistent phosphor has emerged as a promising candidate for information storage due to rapid accessibility and low-energy requirements. However, the low capacity limited its practical application. Herein, we skillfully designed developed NaGdGeO4:Pb2+,Tb3+ stimulated by trace doped Sm3+. As expected, this demonstrates larger carrier than traditional commercial SrAl2O4:Eu2+,Dy3+ phosphors superstrong thermostimulated luminescence (TSL) that is three times greater photoluminescence (PL) intensity (PL efficiency, 17.3%). A mechanism of enhanced controllable TSL proposed based on electron-hole defect pair structure. We further present high-throughput optical data recording in five dimensions single fluorescent film layer. The findings described here provide not only universal approach constructing materials but also new paradigm future generation technology.

Язык: Английский

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Bifunctional hybrid persistent luminescent materials with optical and magnetic response

Optical Materials, Год журнала: 2025, Номер unknown, С. 116871 - 116871

Опубликована: Фев. 1, 2025

Язык: Английский

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Multi-color Ca3Ga4O9: Pr3+ phosphors for high-security-level optical information storage

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179800 - 179800

Опубликована: Март 1, 2025

Язык: Английский

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Defect‐Assisted Dual‐Channel Optical Storage Material with Photochromism and Concealed Persistent Luminescence

Laser & Photonics Review, Год журнала: 2025, Номер unknown

Опубликована: Март 19, 2025

Abstract Optical information storage technology offers several advantages, including cost‐effectiveness, multidimensional storage, and rewritable capability. Consequently, it has become increasingly popular for optical media. Herein, a novel material Na 2 CaGe O 6 :Bi 3+ (NCGO:Bi ) is developed using non‐equivalent substitution strategy, which exhibits photochromic (PC) ultraviolet persistent luminescence (UV PersL) properties. NCGO:Bi demonstrates excellent white‐to‐brown PC performance under 254 nm light irradiation. The brown phosphor can be effectively bleached 425 or thermal stimulation, demonstrating reversibility over multiple cycles. Additionally, the displays UV PersL characteristics. representative sample NCGO:0.001Bi with duration time exceeding 10 h after excitation, peaking at 358 nm. Simultaneously, due to electrons captured by deep traps released via low‐energy also photostimulated Specifically, oxygen vacancies (V are identified primarily responsible observed phenomena X‐ray photoelectron spectroscopy (XPS) electron paramagnetic resonance (EPR) analyses. Overall, this work indicates that combination of light‐induced in single potential designing advanced luminescent materials application storage.

Язык: Английский

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Achieving Ultralong Red Afterglow Emission in Mn²⁺‐Doped NH₄CdCl₃ Hybrid Perovskite Through Trap State Modulation

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Abstract Organic–inorganic hybrid perovskites (OIHPs) show great potential for long afterglow luminescence owing to their adjustable structures and exceptional optoelectronic properties. However, achieving stable, ultra‐long emission remains a challenge, primarily because of the limitations triplet exciton phosphorescence. This paper presents novel Mn 2+ ‐doped NH 4 CdCl 3 perovskite single crystal with red emission. By introducing defect states through doping, is realized independently Under 254 nm excitation, exhibits lasting up 2400 s, controllable trap depth concentration by adjusting doping levels, thus tuning duration. Additionally, crystals demonstrate excellent photoluminescence (PL) under high‐temperature humid conditions. Information encryption patterns are also developed based on materials varying concentrations, demonstrating anti‐counterfeiting applications. study provides new strategy in organic–inorganic perovskites.

Язык: Английский

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Facile construction of mechanoluminescence heterojunctions facilitating personalized Anti-Counterfeiting E-signature devices

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162658 - 162658

Опубликована: Апрель 1, 2025

Язык: Английский

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