A Novel Near‐Infrared Emitting Sr₂LuSbO₆:Fe³⁺ Phosphor with Persistent Luminescence Performance

Advanced Optical Materials, Год журнала: 2024, Номер 12(17)

Опубликована: Март 2, 2024

Abstract The near‐infrared (NIR) persistent luminescence (PersL) materials have attracted widespread attention owing to the unique self‐sustained light with good penetrability. Currently, most of reported NIR PersL are activated by Cr 3+ . Considering potential toxicity chromium ions, there is an urgent requirement explore ‐free phosphors. Herein, a novel phosphor Sr 2 LuSbO 6 :Fe (SLSO:Fe ) prepared and its properties systematically studied. Fe ‐activated exhibits long‐wavelength emission band centered at 890 nm 110 full‐width half maximum (FWHM), can last over 18 h. shows excellent stability even after being dispersed in solutions different environments for 7 days. Furthermore, emitted penetrate cm thickness beef, evidencing penetration property. This work provides based on technological applications also contributes accelerate development new‐generation ‐doped toward versatile applications.

Язык: Английский

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Multiple Defect‐Induced High‐Resolution Near‐Infrared Mechanoluminescent Materials for Non‐Destructive Detection of Blood Glucose and Lipids

Advanced Materials, Год журнала: 2024, Номер 36(50)

Опубликована: Ноя. 6, 2024

Mechanoluminescence (ML) materials, known for their ability to convert mechanical energy into light, are increasingly recognized potential applications, such as in intelligent stress sensing, vivo bioimaging, and non-destructive monitoring. However, the low signal-to-noise ratio (SNR) narrow-band emission of single-defect-induced ML materials usually limit biological-related practical applications. Here, these limitations will be addressed by modulating microstructure evolution Y

Язык: Английский

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Near-infrared mechanoluminescence from Sr3Sn2O7:Nd3+ for potential bioimaging and non-destructive detection

Journal of Rare Earths, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Amorphous to Crystalline Phase Transformation Enables Tunable Persistent Luminescence for Multi‐Mode Optical Information Storage

Advanced Functional Materials, Год журнала: 2024, Номер 34(46)

Опубликована: Июнь 14, 2024

Abstract Multi‐mode luminescence tuning through in situ crystallization of topological glass holds significance for photonics applications. Here, NaAlSiO 4 :Eu 2+ ‐based ceramics are presented as stable persistent (PersL) materials by controlling the phase transformation Eu doped Na 2 O‐Al O 3 ‐SiO from amorphous to crystalline nepheline phase. X‐ray and UV excited PersL colors blue yellow realized adjusting duration time, trap statuses reveal dynamic process with a redeployment 0.83 1.09 eV during transformation. Optical information storage model is constructed structure stacked emitting layers enhance capacity. time‐lapse imaging further demonstrated optical memory longer than 5 days. These findings advance development superior offer manipulation tactics multi‐mode

Язык: Английский

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Visible-to-Near-Infrared Mechanoluminescence in Bi-Activated Spinel Compounds for Multiple Information Anticounterfeiting

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(27), С. 35279 - 35292

Опубликована: Июнь 27, 2024

Mechanoluminescence (ML) is the nonthermal luminescence generated in process of force-to-light conversion, which has broad prospects stress sensing, wearable devices, biomechanics, and multiple information anticounterfeiting. Multivalence emitter ions utilize their own self-reduction to realize multiband ML without introducing another dopant, such as Eu3+/Eu2+, Sm3+/Sm2+, Mn4+/Mn2+. However, self-reduction-induced bismuth-activated materials rarely been reported so far. In this work, a novel visible-to-near-infrared (vis-NIR) induced by Bi3+ Bi2+ spinel-type compound (MgGa2O4) reported. The photoluminescence (PL) spectra, PL excitation (PLE) lifetime curves demonstrate that Bi3+/Bi2+ are main centers. Notably, possible model proposed, where magnesium vacancy (VMg″) considered driving force for Bi2+. Furthermore, an oxygen (VO••) confirmed electron paramagnetic resonance (EPR) spectroscopy. Combined with thermoluminescence (TL) glow plausible trap-controlled mechanism illustrated, electron-hole (VO••/VMg″) pairs play significant role capturing electrons holes. It worth noting proof-of-concept dual-mode electronic signature application implemented based on flexible film, improves capabilities anticounterfeiting high-level security applications. Besides, multistimulus-responsive behaviors film realized under 254 nm UV lamp, thermal disturbance, 980 laser, mechanical stimuli. general, study provides new insights into designing vis-NIR toward wider possibilities.

Язык: Английский

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Near‐Infrared Mechanoluminescence from Cr³⁺‐Doped Spinel Nanoparticles for Potential Oral Diseases Detection

Small, Год журнала: 2024, Номер 20(45)

Опубликована: Авг. 10, 2024

Mechanoluminescence (ML) phosphors have found various promising utilizations such as in non-destructive stress sensing, anti-counterfeiting, and bio imaging. However, the reported NIR MLs predominantly been limited to bulky particle size weak ML intensity, hindering further practical applications. For this regard, a nano-sized ZnGa

Язык: Английский

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High stability and spectral tunability of versatile manganese/europium/tellurium-doped double perovskite crystals toward flexible functional fabric and semiconductor devices

Chemical Engineering Journal, Год журнала: 2024, Номер 482, С. 148829 - 148829

Опубликована: Янв. 18, 2024

Язык: Английский

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Highly efficient and stable dual-band photoluminescence from strongly confined Mn2+ doped CsPbBr3 nanocrystals in glasses

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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SrAl₂O₄: Eu²⁺, Dy³⁺ mechanoluminescent phosphor for potential bearings stress distribution imaging

Journal of the American Ceramic Society, Год журнала: 2025, Номер unknown

Опубликована: Март 22, 2025

Abstract Mechanoluminescence (ML) materials have shown broad application potentials in stress sensing and structural monitoring due to situ, real‐time monitoring, low trigger threshold. However, the accurate detection of distribution inside machinery still faces certain challenges. Based on a flexible ML film prepared by SrAl 2 O 4 : Eu 2+ , Dy 3+ phosphor polydimethylsiloxane, this paper proposes “stress difference” strategy monitor mechanical structure. By applying different loads recording linear relationship between intensity load, local engine bearing can be measured. comparing difference I PersL specific machine is successfully inferred. This study provides new ideas for sensing, which may open up an innovative method structures.

Язык: Английский

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Color manipulation of mechanoluminescence and photoluminescence from CaZnOS:ZnS:Mn2+ heterocompound controlled by ion doping concentration

Journal of Alloys and Compounds, Год журнала: 2024, Номер 990, С. 174437 - 174437

Опубликована: Апрель 7, 2024

Язык: Английский

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