Recent developments and progress of inorganic photo-stimulated phosphors

Fan, Xiaozhe; Liu, Zhichao; Yang, Xiuxia; Chen, Wenbo; Zeng, Wei; Tian, Shuyu; Yu, Xue; Qiu, Jianbei; Xu, Xuhui

doi:10.1016/j.jre.2018.12.003

Cited by 37 publications

(18 citation statements)

References 53 publications

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“…As a type of self-sustained optical material, long persistent phosphor (LPPs) luminescence can still be maintained for just few seconds or even several days when the irradiation source is removed. Owing to their fascinating properties of “glow-in-the-dark” and extensive applications, LPPs have acquired enduring research interest from material scientists, physicists, chemists, or even biologists. − To date, LPPs in the visible region have already been commercialized and widely used in our daily life, i.e., emergency signage, luminous decorations, dials, etc. − Recently, near-infrared (NIR) LPPs have aroused particular attention because of their supreme advantages in biomedicine, which has become a hotspot and opened up new ground in this field. − …”

Section: Introductionmentioning

confidence: 99%

Ultraviolet-A Persistent Luminescence of a Bi³⁺-Activated LiScGeO₄ Material

et al. 2020

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Long persistent phosphors (LPPs) with ultraviolet (UV) luminescence have great potential for application in the fields of biomedicine, environmental, and catalysis. However, it is currently limited by the design and development of remarkable UV LPPs with a suitable spectral region and an ultralong afterglow decay time. Herein, we develop a new type of Bi3+-activated LiScGeO4 LPP, which exhibits bright ultraviolet-A (UVA) persistent luminescence (PersL). Because of the existence of numerous stabilized effective traps, the as-synthesized phosphors can undergo an ultralong PersL decay time far longer than 12 h. The PersL properties, effective trap depths, distributions, and types, as well as the possible mechanism for the PersL behavior of LiScGeO4:Bi3+, are comprehensively surveyed utilizing PersL excitation spectra, PersL decay analyses, thermoluminescence experiments, and X-ray photoelectron spectroscopy. This work can cover the shortage of LPPs in the UV region and also can lay the foundation for the development of more excellent UV LPPs toward versatile novel applications.

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Section: Introductionmentioning

confidence: 99%

Ultraviolet-A Persistent Luminescence of a Bi³⁺-Activated LiScGeO₄ Material

et al. 2020

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“…Moreover, photo-stimulated phosphors show high anti-counterfeiting level on the basis of their tunable optical properties. [264][265][266] A dynamic three-path authenticating model is reported in the CaAl 2 Si 2 O 8 : Eu 3+ /Eu 2+ /Nd 3+ system. With increasing excitation wavelength from 265 to 465 nm, tunable emissions ranging from blue to red are gained.…”

Section: Figure 11cmentioning

confidence: 99%

Combinations of Superior Inorganic Phosphors for Level‐Tunable Information Hiding and Encoding

2021

Advanced Optical Materials

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Inorganic photoluminescence (PL) phosphors (including upconversion (UC), down‐shifting (DS), and persistent (PersL) materials) with tunable outputs, high quantum yields (QYs), and excellent photostability have attracted tremendous attention in advanced information hiding and encoding (IHE). The three kinds of phosphors endow security patterns in different IHE levels owing to their unique optical features. For security applications, it is very necessary to review how to boost optical performance and achieve multi‐level anti‐counterfeiting. Herein, diversely pivotal approaches on the achievement of multicolor emissions, high QYs, and excellent photostability are summarized. Full learning of these methods is promising to design superior inorganic phosphors. Based on the appealing optical properties of inorganic PL materials, a progressively improved IHE level is revealed by using unitary inorganic PL material, the couples of UCL, DS, and PersL, and further combinations together with external stimuli. This review not only deepens an understanding of designing high‐performance inorganic PL phosphors, but also gets inside into the construction of high‐performance IHE.

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“…In addition, the long persistent luminescence (LPL) performance for the released carriers under thermal disturbance at room temperature inevitably makes an interference of the accurate reading of the information. [20] Moreover, a dilemma that has to be faced is that the uniformity and transparency of the corresponding nanocrystals are hard to be contented for the available packaging procedure as well as to maintain their physical and chemical stability. [1,10] In this work, Ba 2 LaF 7 :Tb 3+ NCs were precipitated in situ to form a highly stable transparent amorphous medium.…”

Section: Introductionmentioning

confidence: 99%

High‐Resolution X‐Ray Time‐Lapse Imaging from Fluoride Nanocrystals Embedded in Glass Matrix

Tang

Liu

Fang

et al. 2022

Advanced Optical Materials

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A latent image of the target after the X‐ray irradiation induced via a 980 nm laser or thermal excitation provides great potentials for healthcare diagnostics and nondestructive inspection. Taking the advantage of X‐ray time‐lapse imaging, simplified facilities and visualized information can be achieved. However, information acquisition with higher resolution, combined with long‐term storage for the corresponding X‐ray images remains a challenge. Herein, Tb3+‐doped Ba2LaF7 nanocrystals (NCs) grown in situ and dispersed uniformly in an amorphous glass matrix is explored, which performs a fascinating X‐ray response for imaging with an impressive spatial resolution reaching 20.0 lp mm−1. Moreover, the as‐developed corresponding scintillators exhibit excellent optical storage capability upon X‐ray irradiation for the constructed deep traps, and a controllable release of the captured carriers induced by thermal disturbance, and 980 nm laser stimulation can be achieved. Notably, the imaging resolution is well preserved to be 20.0 lp mm−1 even recorded after 10 days. The as‐explored Ba2LaF7:Tb3+ NCs embedded within an amorphous matrix realize a feasible approach for a simplified X‐ray imaging system with high‐resolution information production.

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Recent developments and progress of inorganic photo-stimulated phosphors

Cited by 37 publications

References 53 publications

Ultraviolet-A Persistent Luminescence of a Bi³⁺-Activated LiScGeO₄ Material

Ultraviolet-A Persistent Luminescence of a Bi³⁺-Activated LiScGeO₄ Material

Combinations of Superior Inorganic Phosphors for Level‐Tunable Information Hiding and Encoding

High‐Resolution X‐Ray Time‐Lapse Imaging from Fluoride Nanocrystals Embedded in Glass Matrix

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Recent developments and progress of inorganic photo-stimulated phosphors

Cited by 37 publications

References 53 publications

Ultraviolet-A Persistent Luminescence of a Bi3+-Activated LiScGeO4 Material

Ultraviolet-A Persistent Luminescence of a Bi3+-Activated LiScGeO4 Material

Combinations of Superior Inorganic Phosphors for Level‐Tunable Information Hiding and Encoding

High‐Resolution X‐Ray Time‐Lapse Imaging from Fluoride Nanocrystals Embedded in Glass Matrix

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Ultraviolet-A Persistent Luminescence of a Bi³⁺-Activated LiScGeO₄ Material

Ultraviolet-A Persistent Luminescence of a Bi³⁺-Activated LiScGeO₄ Material