Amplifying Persistent Luminescence in Heavily Doped Nanopearls for Bioimaging and Solar-to-Chemical Synthesis

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Lanthanides are widely codoped in persistent luminescence phosphors (PLPs) to elevate defect concentration and enhance efficiency. However, the deleterious cross-relaxation between activators lanthanides inevitably quenches luminescence, particularly heavily doped phosphors. Herein, we report a core-shell engineering strategy minimize unwanted but retain charge trapping capacity of by confining core shell, respectively. As proof concept, prepared series ZnGa2O4:Cr, Ln (CD-Ln, = Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb) structured ZnGa2O4:Cr@ZnGa2O4:Ln (CS-Ln) nanoparticles. First-principles investigations suggested that lanthanide doping elevated electron trap for enhancing energy transfer (ET) from Cr3+ Ln3+ ions quenched luminescence. The spatial separation CS-Ln nanoparticles suppressed ET Ln3+. Due efficient suppression ET, optimal was 50 times compared CD-Ln. Moreover, intensity CS-5%Ln up 60 original ZnGa2O4:Cr. displayed significantly improved signal-to-noise ratios bioimaging. Further, interfaced with lycopene-producing bacteria Rhodopseudomonas palustris solar-to-chemical synthesis, lycopene productivity increased 190%. This work provides reliable solution fulfill potential can further promote applications biomedicine synthesis.

Language: Английский

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

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161181 - 161181

Published: March 1, 2025

Language: Английский

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Dual-Mode Luminescent Lanthanide-Modified Silicon Quantum Dots for Anticounterfeiting and Latent Fingerprint Visualization

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: 8(5), P. 2393 - 2401

Published: Jan. 29, 2025

The increasingly sophisticated counterfeiting technology has led to a significant increase in the demand for more advanced anticounterfeiting materials, and multimode luminescent materials are promising candidate anticounterfeiting. In this research, dual-mode nanocomposite, SiQDs-Ln, was designed prepared by grafting lanthanide ions (Eu3+/Tb3+) onto surface of trimellitic anhydride-functionalized blue-emitting silicon quantum dots (SiQDs). This preparation strategy can effectively prevent aggregation SiQDs endow nanocomposite with optical response properties. It emitted visible light different colors at excitation wavelength common dual-wavelength ultraviolet lamps (254 or 365 nm). incorporation SiQDs-Ln into commercial white industrial ink facilitated ink, which applied coded patterns, ASCII encryption, screen-printed designs, QR codes. Furthermore, fingerprint images coated powder demonstrated that three levels detail could be clearly recognized naked eye. Compared traditional single-mode luminescence greatly enhanced level information security as well accuracy reliability recognition. study indicates conveniently used practical applications aid hand-held UV great potential anticounterfeiting,

Language: Английский

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High-Throughput Information Storage in an Intelligent Response Phosphor

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 17(2), P. 3587 - 3596

Published: Dec. 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.

Language: Английский

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Simultaneous adjustment of afterglow wavelength and intensity in indium-substituted Ga_1.99−xIn_xO₃:0.01Cr³⁺

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Replacing gallium with indium in the crystal structure of Ga 2 O 3 :Cr 3+ redshifts emission wavelength to 830 nm and induces persistent luminescence.

Language: Английский

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Sm3+ single-doped LaGaO3 perovskite phosphor with color-tunable luminescence for multimodal applications

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 184, P. 112438 - 112438

Published: Jan. 11, 2025

Language: Английский

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Bismuth-activated luminescence reversible modification of photochromic for multimodal anti-counterfeiting and optical storage application

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179812 - 179812

Published: March 1, 2025

Language: Английский

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Kinetics-tunable photochromic platform in perovskites for advanced dynamic information encryption

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 503, P. 158416 - 158416

Published: Dec. 9, 2024

Language: Английский

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