Cr3+-doped garnet-type Ca3Al2Ge3O12 phosphors with high color purity and high quantum yield for plant growth lighting

Ceramics International, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

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Site Substitution Triggered Luminescence Characteristics Modulation in Eu³⁺‐Activated Sr₄La₆(SiO₄)₆Cl₂ Phosphors for Boosting Viral Resistance and Plant Growth

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 17, 2025

Abstract A series of Eu 3+ ‐activated Sr 4 La 6 (SiO ) Cl 2 (SLSCl) phosphors are prepared to fulfill the requirements plant growth and immunity. Upon 394 nm excitation, resulting can emit intense red emission from , which their intensities sensitive dopant content site occupation. When occupies 2+ sites, its optimal doping contents in SLSCl host lattices is 40 50 mol%, respectively. Moreover, quantum efficiency thermal stability designed also greatly dependent on taken by lattices. Via utilizing as red‐emitting converters, two different light‐emitting diodes (LEDs) fabricated, whose bands overlap with absorption pigments, enabling feasibilities growth. Furthermore, experiments indicate that photosynthesis be significantly improved via employing packaged LEDs supplementary lights. Additionally, enhance resistance N. benthamiana plants against viral infection. The findings do not only propose a facile route manipulate luminescence properties phosphors, but confirm utilization light an efficient promote resistance.

Язык: Английский

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Modulating Tetra-Modal Luminescence of LaAlO₃:Sm³⁺ Storage Phosphors Through Intrinsic Defect Engineering and Co-Doping

ACS Applied Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 18, 2025

Long-lasting persistent phosphors with efficient multimodal luminescence properties serve not only as effective storage but also essential components for developing reliable anticounterfeiting materials. However, achieving simultaneous in poses a significant challenge, it necessitates the coexistence of multiple mechanisms within same matrix along creation traps at various energy levels charge carrier storage. This study presents synthesis LaAlO3 doped varying mol % Sm3+ using coprecipitation method followed by molten salt reaction. The objective is to investigate their and potential applications optical anticounterfeiting. These exhibit (PersL) lasting hours controllable doping optically stimulated (OSL) when being excited 980 nm laser after UV preirradiation. Thermo-stimulated (TSL) reveals deep enhanced OSL. Additionally, LAO:0.5S phosphor shows PersL upon X-ray irradiation, suggesting imaging applications. Gd3+ incorporation optimized OSL performance while DFT calculations elucidated trapping mechanisms. findings tetra-modal comprising downconversion (PL & RL), PersL, OSL, TSL highlight multifunctional these LaAlO3-based advanced

Язык: Английский

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Synthesis of MgO-rGO nanocomposites for display and forensic application

Deleted Journal, Год журнала: 2025, Номер unknown, С. 100056 - 100056

Опубликована: Янв. 1, 2025

Язык: Английский

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Near-infrared luminescence and temperature sensing properties of Sc2Mo3O12:Nd3+/Yb3+/Ho3+ phosphor

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2025, Номер 333, С. 125869 - 125869

Опубликована: Фев. 8, 2025

Язык: Английский

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Bi3+-activated high-efficiency full-spectrum WLEDs with broadband yellow-green emission Ba2Gd5B5O17:Bi3+ phosphor

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Unleashing the Potential of Defect Engineered Persistent Pr³⁺‐Activated Phosphors for Multi‐Dimensional Anti‐Counterfeiting and X‐Ray Imaging Applications

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Abstract Persistent luminescence (PersL) in inorganic phosphors offers great potential for anti‐counterfeiting and optical storage, with optimization of PersL, multicolor tuning, defect engineering. This study presents a Ca 3 Ga 2 Ge O 12: Pr 3+ (CGGO:Pr) phosphor long‐lasting PersL emissions. Aliovalent codoping Er Yb ions optimizes deep/shallow trap redistribution, controlling depths from 0.98 to optimal 0.73 eV through the creation new shallow electron traps (Yb • , ) alongside existing V levels. The smart /Er /Yb :CGGO exhibits three‐dimensional visible emissions under 275 380 nm excitation, as well upconversion 980 laser irradiation. Hybrid density functional calculations, thermoluminescence, positron annihilation lifetime spectroscopy revealed nature different PersL. Together, single system featuring has been developed, exhibiting improved regulated (≈0.73 eV) suitable robust multimodal documents, pharmaceuticals, industrial products. Furthermore, composite PMMA‐CGGO:Pr films have shown remarkable capability X‐ray imaging, achieving resolution 4 lp/mm, which exceeds that commercial Gd S:Tb screens. These findings highlight this work advanced imaging applications, offering enhanced controlled depths.

Язык: Английский

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Investigation on the highly fluorescent IRMOF-3/thiol-ene polymer and its ligand-based composite with 76% quantum yield

Optical Materials, Год журнала: 2025, Номер 166, С. 117222 - 117222

Опубликована: Июнь 2, 2025

Язык: Английский

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A thermally stable color-tunable white phosphor CaGa0.5Nb0.5O3: Dy3+/Sm3+ for warm WLEDs

Ceramics International, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Язык: Английский

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A new red phosphor for high time-resolved thermal sensitivity and plant growth

Dalton Transactions, Год журнала: 2024, Номер 53(45), С. 18237 - 18242

Опубликована: Янв. 1, 2024

Luminous materials with a rapid lifetime response have garnered significant interest in sensing technology.

Язык: Английский

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