Novel color tunable LaCaGaO₄:Bi³⁺,Eu³⁺ phosphors for high color rendering warm white LEDs

Journal of the American Ceramic Society, Год журнала: 2023, Номер 106(11), С. 6617 - 6629

Опубликована: Июнь 10, 2023

Abstract A series of LaCaGaO 4 : x Bi 3+ , y Eu ( = 0.002–0.04, 0.02–0.45) phosphors with adjustable emission colors were synthesized by high‐temperature solid‐state reaction. The samples identified as pure phases X‐ray diffraction and Rietveld refinement, the crystal structures analyzed in detail. phosphor shows an intense blue under near‐ultraviolet excitation, originating from 3 P 1 → S 0 transition. spectrum analysis reveals that ions occupy two luminescence centers host energy transfer can occur. model between was also created studied As ‐concentration increased, color :0.005Bi changed to pink red. In addition, fluorescence lifetime, quantum yield, thermal stability, other properties characterized analyzed. Finally, white light‐emitting diode devices R a values 96.6 95 correlated temperatures 4578 3324 K fabricated, indicating potential for warm lighting applications.

Язык: Английский

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A novel Bi3+,Eu3+ co-doped Ca3Zr2SiGa2O12 phosphors for high-sensitive temperature measurement

Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 177761 - 177761

Опубликована: Ноя. 1, 2024

Язык: Английский

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LaSc3(BO3)4:Eu3+&g-C3N4 composite phosphor for dual-mode temperature sensing

Journal of Luminescence, Год журнала: 2025, Номер unknown, С. 121084 - 121084

Опубликована: Янв. 1, 2025

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DOUBLING THE RELATIVE SENSITIVITY OF YNbO4:Sm3+ LUMINESCENCE THERMOMETER BY OBSERVING 4G7/2 EMITTING LEVEL

Journal of Luminescence, Год журнала: 2025, Номер unknown, С. 121125 - 121125

Опубликована: Фев. 1, 2025

Язык: Английский

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Tunable emission from solid-solution phosphors Ba3(Sb,Ta)Ga3Si2O14:Bi3+,Eu3+ for diverse optical applications

Materials Today Chemistry, Год журнала: 2025, Номер 44, С. 102524 - 102524

Опубликована: Янв. 19, 2025

Язык: Английский

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Up-conversion Phosphor LaCaGaO4: Er3+/Yb3+ for the Optical Temperature Sensing and Anti-counterfeiting

Current Applied Physics, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Na3Ca2TaO6: Bi3+, Er3+ phosphors for multi-mode non-contact optical temperature measurement and anti-counterfeiting

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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An optical fiber temperature sensor based on fluorescence intensity ratio in Er3+/Yb3+ co-doped Gd2O3 phosphors

Ceramics International, Год журнала: 2023, Номер 49(17), С. 28913 - 28919

Опубликована: Июнь 17, 2023

Язык: Английский

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KNN-based optical temperature sensing ceramics integrating negative thermal quenching and photochromic self-recovery behavior

Journal of Luminescence, Год журнала: 2023, Номер 263, С. 120141 - 120141

Опубликована: Авг. 16, 2023

Язык: Английский

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Up-conversion luminescent properties of CaGdAl3O7: Er3+, Yb3+, Lu3+ as a ratio optical thermometer

Vacuum, Год журнала: 2024, Номер 226, С. 113297 - 113297

Опубликована: Май 18, 2024

Язык: Английский

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