Manipulating alkali charge compensation to improve red fluorescence and thermostability in Ba5P6O20:Eu3+ phosphor

Guo, Zewen; Jiang, Hongming; Li, Hong; Zhang, Hongzhi; Liu, Conglin; Zhao, Rui; Yang, Zhiqin; Tang, Huan; Li, Junpeng; Zhang, Jun; Zhu, Jing

doi:10.1016/j.apmt.2024.102095

Cited by 8 publications

(1 citation statement)

References 62 publications

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“…The band gaps of both the host and doped phosphor samples were estimated using the Kubelka–Munk (K–M) function: 40 where R , K , and S are the reflectance, absorption, and scattering coefficients, respectively. As F ( R ∞ ) is directly proportional to K , when the Tauc equation given as eqn (3) is introduced, the relationship between F ( R ∞ ) and energy gap ( E g ) can be investigated: 41 ( αhv ) n = A ( hv − E g )( F ( R ∞ ) hv ) n = A ( hv − E g )where hv represents the photon energy, A stands for a constant, and n is a transition type-related constant. When transitions are directly authorized, indirectly allowed, directly prohibited, or indirectly forbidden, the n values are 1/2, 2, 3/2, and 3, respectively.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and photoluminescence properties of high-quality reddish-orange emitting Ca₄Nb₂O₉:Eu³⁺ phosphors for WLEDs and anti-counterfeiting

Xiang,

2024

Dalton Trans.

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Section: Resultsmentioning

confidence: 99%

Synthesis and photoluminescence properties of high-quality reddish-orange emitting Ca₄Nb₂O₉:Eu³⁺ phosphors for WLEDs and anti-counterfeiting

Xiang,

2024

Dalton Trans.

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Eu‐Doped Polyurethane with Efficient Multicolor Fluorescence, Self‐Healing, Stimuli‐Responsiveness and Its Diverse Applications

Wang,

Kong

et al. 2024

Adv Funct Materials

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Multicolor lanthanide‐doped polymers have found versatile applications in data encryption, sensing, and smart display. However, multiple components, sophisticated design, and complex preparation procedures are often required. In contrast, their intrinsic and multicolor fluorescence emission is been effectively used. Herein, Eu‐doped polyurethane (ETP@PU), integrating tunable multicolor emission, self‐healing, and multi‐responsiveness, is prepared through a facile route via step‐growth polymerization of PU using commercial Eu‐ligand (Eu(TTA)3Phen, ETP) as a fluorophore. FTIR and XPS analysis demonstrate the successful coordination of Eu3+ with carbamate groups of PU, which not only enhances the mechanical properties of PU but also bestows unique luminescent properties. With increasing ETP content, the intrinsic fluorescence of PU declines, while that of Eu displays a discernible enhancement, resulting in the tunable multicolor emission. The highest quantum yield of Eu‐related emission reaches 71.3% due to the robust coordination and efficient energy transfer between Eu3+ and PU. Moreover, the ETP@PU exhibits excellent self‐healing capacity and multi‐responsiveness, and their potential applications are also investigated in the field of light‐emitting diodes, data encryption, and self‐healing process monitoring. This work provides a facile and efficient strategy to develop multicolor lanthanide‐doped polymers promising for various applications.

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

Dai,

Zou,

Wei

et al. 2024

Advanced Optical Materials

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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 and urgent. Herein, a new far‐red phosphor BaY2Ga3.9GeO12:0.1Cr3+ with high internal quantum efficiency (98%) and thermal stability (90.2%@423K) is obtained via the substitution of CaO8 with bigger BaO8 dodecahedrons, which is attributed to variations in the lattice environment of Cr3+. Meanwhile, controllable emission tuning from 780 to 708 nm and enhanced luminescence performance are achieved due to the cation substitution can reduce the production of Cr4+ and modulate the lattice occupancy of the Cr3+ ions, and the enhancement of metal‐ligand interactions resulting in the enhancement of the crystal field and the breaking of the forbidden d‐d transition of Cr3+. The proof‐of‐concept demonstration of the pakchoi lighting experiment reveals the great potential of BaY2Ga3.9GeO12:Cr3+ phosphor in stimulating plant growth and pushing the yield. These results demonstrate the feasibility of cationic substitution to optimize the optical performance of Cr3+‐doped phosphors, providing an alternative strategy for designing efficient far‐red light sources for plant lighting.

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Manipulating alkali charge compensation to improve red fluorescence and thermostability in Ba5P6O20:Eu3+ phosphor

Cited by 8 publications

References 62 publications

Synthesis and photoluminescence properties of high-quality reddish-orange emitting Ca₄Nb₂O₉:Eu³⁺ phosphors for WLEDs and anti-counterfeiting

Synthesis and photoluminescence properties of high-quality reddish-orange emitting Ca₄Nb₂O₉:Eu³⁺ phosphors for WLEDs and anti-counterfeiting

Eu‐Doped Polyurethane with Efficient Multicolor Fluorescence, Self‐Healing, Stimuli‐Responsiveness and Its Diverse Applications

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

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Manipulating alkali charge compensation to improve red fluorescence and thermostability in Ba5P6O20:Eu3+ phosphor

Cited by 8 publications

References 62 publications

Synthesis and photoluminescence properties of high-quality reddish-orange emitting Ca4Nb2O9:Eu3+ phosphors for WLEDs and anti-counterfeiting

Synthesis and photoluminescence properties of high-quality reddish-orange emitting Ca4Nb2O9:Eu3+ phosphors for WLEDs and anti-counterfeiting

Eu‐Doped Polyurethane with Efficient Multicolor Fluorescence, Self‐Healing, Stimuli‐Responsiveness and Its Diverse Applications

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

Contact Info

Product

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Synthesis and photoluminescence properties of high-quality reddish-orange emitting Ca₄Nb₂O₉:Eu³⁺ phosphors for WLEDs and anti-counterfeiting

Synthesis and photoluminescence properties of high-quality reddish-orange emitting Ca₄Nb₂O₉:Eu³⁺ phosphors for WLEDs and anti-counterfeiting

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