Na5Y(MoO4)4: Sm3+ red phosphor with good thermal stability and high color rendering index for plant growth lighting and white light emitting diodes

Journal of Alloys and Compounds, Год журнала: 2024, Номер 991, С. 174428 - 174428

Опубликована: Апрель 7, 2024

Язык: Английский

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Phonon sideband induced broadband far-red emission Li2GeTeO6:Mn4+ phosphors under blue-excitation for plant-cultivation LEDs, w-LEDs, and security ink

Applied Materials Today, Год журнала: 2025, Номер 42, С. 102598 - 102598

Опубликована: Янв. 18, 2025

Язык: Английский

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Charge compensation-assisted photoluminescence in an efficient K2SrP4O12:Sm3+ phosphor

Next Materials, Год журнала: 2025, Номер 6, С. 100505 - 100505

Опубликована: Янв. 1, 2025

Язык: Английский

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A versatile heat-resistant barium phosphate phosphor: Dy3+–Eu3+ energy transfer and tunable emission

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

Опубликована: Фев. 1, 2025

Язык: Английский

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Volume Compensation Directed Enhanced Photoluminescence in Li+ Co-doped Y4Al2O9:Eu3+ Phosphors for Solid State Lighting Applications

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106199 - 106199

Опубликована: Март 1, 2025

Язык: Английский

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Achieving the Anomalous Far‐Red Emission of Eu³⁺ by Tailoring Distorted Square Antiprism Symmetry in Potassium‐Bismuth‐Phosphates

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

Опубликована: Авг. 1, 2024

Abstract Eu 3+ doped phosphors with efficient and intense 5 D 0 ‐ 7 F 4 far‐red luminescence hold significant potential in daily agricultural illuminations. However, ions typically emit orange/red from 1,2 transitions, the development of high‐quality is still lacking challenging. Herein, two potassium‐bismuth‐phosphate are developed to manipulate coordination geometry octahedron distorted square antiprism, achieving emission a high quantum efficiency 90.5%. Specifically, formation energy calculations transient spectral measurements reveal that occupies antiprism symmetric site K 6 Bi 13 (PO ) 15 :Eu , resulting emission. Conversely, octahedral symmetry generates weak Bi(P 2 O . Moreover, :0.08Eu (90%@423 K) exhibits better thermal stability compared :0.2Eu (83%@423 K). Spectral analyses Debye temperature exclude contributions charge transfer band structural rigidity, elevated attributed suppressed migration quenching centers facilitated by smaller doping level Finally, excellent photoelectric properties white‐LEDs plant growth lighting utilizing representative as red/far‐red components indicate its application potentiality. This work provides feasible method for constructing phosphors.

Язык: Английский

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A four-mode optical thermometer designed in double perovskite Ca2GdNbO6:Bi3+,Eu3+

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1002, С. 175220 - 175220

Опубликована: Июнь 17, 2024

Язык: Английский

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Efficient and Thermally Stable Cr³⁺‐Doped Phosphor Achieved by Cation Substitution: Plant Lighting Application

Advanced Optical Materials, Год журнала: 2024, Номер 12(33)

Опубликована: Окт. 17, 2024

Abstract Far‐red phosphor‐converted light‐emitting diodes are receiving increasing attention as an essential component of the next‐generation plant‐growth lights. However, developing far‐red phosphors with high quantum efficiency, low thermal quenching, and suitable emitting wavelength is crucial urgent. Herein, a new phosphor BaY 2 Ga 3.9 GeO 12 :0.1Cr 3+ internal efficiency (98%) stability (90.2%@423K) obtained via substitution CaO 8 bigger BaO dodecahedrons, which attributed to variations in lattice environment Cr . Meanwhile, controllable emission tuning from 780 708 nm enhanced luminescence performance achieved due cation can reduce production 4+ modulate occupancy ions, enhancement metal‐ligand interactions resulting crystal field breaking forbidden d‐d transition The proof‐of‐concept demonstration pakchoi lighting experiment reveals great potential :Cr stimulating plant growth pushing yield. These results demonstrate feasibility cationic optimize optical ‐doped phosphors, providing alternative strategy for designing efficient light sources lighting.

Язык: Английский

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Preparation of BaAl2-Ga Si2O8:Ce3+, M+ (Li, Na, K) blue-cyan phosphors based on charge compensation and cation substitution strategies and luminescence performance study

Ceramics International, Год журнала: 2024, Номер 50(14), С. 26077 - 26085

Опубликована: Апрель 30, 2024

Язык: Английский

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Structure Modulation and Charge Transfer in Self‐Reduction Phosphors: A Review

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

Опубликована: Авг. 9, 2024

Abstract Traditional luminescent materials commonly exhibit single‐duration emissions and single‐timed with limited emission peaks. Developing a material multicolor, variable temporal, multimodal luminescence is significant challenge. Self‐reduction phosphors have attracted considerable interest for their distinctive properties versatile applications. Distinguished by rigid structure exceptional purity, offer safer alternative to conventional reduction methods using hazardous gases H 2 /CO/N . However, synthesizing these precise control over self‐reduction defect regulation complex. Therefore, innovative structures substrates are essential address challenges. This review discusses the latest developments in doped ions such as Eu 3+ , Mn 4+ Ce Yb examining origins advancements self‐reduction. It covers classifications, mechanisms, defects, applications, an emphasis on techniques controlled through structural charge transfer modifications. work aims provide valuable insights facilitate further research innovation endeavors.

Язык: Английский

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