New double perovskite Cd2MgTeO6:Sm3+, Na+ tellurate phosphors with abnormal thermal quenching for applications in white and plant growth lighting

Zhao, Yixuan; Liu, Lu; Zhou, Li; Yang, Ruiqi; Li, Changlin; Chen, Jiexin; Hu, Ziyue; Su, Haoran; Deng, Bin; Ji, Xiaohui; Yu, Ruijin

doi:10.1016/j.ceramint.2023.04.114

Cited by 13 publications

(2 citation statements)

References 56 publications

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“…When R c > 5 Å, concentration quenching occurs due to multipole interactions, otherwise, it occurs due to exchange interactions. Based on Blasse theory, R c can be calculated as follows: 18 where V represents the volume of the unit cell. N is the number of formula units.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, rare earth doped tellurites have attracted special attention in recent years. For example, Zhao et al 18 obtained a new Sm 3+ doped Cd 2 MgTeO 6 tellurite red phosphor with Na + as charge compensation through high-temperature solid-state methods. Zhu et al 19 prepared Eu 3+ doped perovskite tellurite XLaLiTeO 6 (X = Ba, Sr, Ca, and Mg).…”

Section: Introductionmentioning

confidence: 99%

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A novel Eu³⁺ activated Ca₃Zn₃Te₂O₁₂ tellurate red phosphor for white LEDs with high color stability and color purity

Xie,

Gu,

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A novel Eu³⁺ activated Ca₃Zn₃Te₂O₁₂ tellurate red phosphor for white LEDs with high color stability and color purity

Xie,

Gu,

et al. 2024

New J. Chem.

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Unveiling Local Electronic Structures of Manganese‐Doped Double Perovskites Red Emitters

Zheng,

Du,

et al. 2024

Laser & Photonics Reviews

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Over the past few years, light‐emitting diodes (LEDs) have emerged as an efficient replacement for standard incandescent and fluorescent lamps, due to their superior efficiency, energy conservation, service longevity, reliability, and affordability. However, identifying a red emitter for white LEDs has presented significant challenges. This study seeks to synthesize and analyze a novel red emitter, investigating its potential use in white LEDs and indoor plant growth lighting. The Sr2Lu(Nb,Mn)O6 is manufactured employing the traditional high‐temperature solid‐phase method. The internal and external quantum efficiencies (IQE and EQE) of double perovskites reached 32.39% and 21.67%. The g value calculates to 2.146, which corroborates that the magnetic dipolar transitions of Mn4+ ions inhabit symmetric octahedral sites. First‐principles investigations are utilized to unveil local electronic structures. Emission spectra reveal a substantial broad red emission peak at 688 nm. The Tanabe–Sugano diagram is applied to understand the luminescence mechanism. Additionally, the evaluation of parameters such as the internal UV emission ratio, crystal field strength, and Racah parameters is conducted. The luminescent intensity of the Sr2Lu(Nb,Mn)O6 can still be maintained at 60% upon reaching a temperature of 423 K. The findings suggest that Sr2Lu(Nb,Mn)O6 offers a novel alternative for white LEDs and indoor plant growth lighting.

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Synthesis, structural and optical properties of a novel double perovskite for LED applications

Zheng,

Du,

et al. 2024

Ceramics International

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New double perovskite Cd2MgTeO6:Sm3+, Na+ tellurate phosphors with abnormal thermal quenching for applications in white and plant growth lighting

Cited by 13 publications

References 56 publications

A novel Eu³⁺ activated Ca₃Zn₃Te₂O₁₂ tellurate red phosphor for white LEDs with high color stability and color purity

A novel Eu³⁺ activated Ca₃Zn₃Te₂O₁₂ tellurate red phosphor for white LEDs with high color stability and color purity

Unveiling Local Electronic Structures of Manganese‐Doped Double Perovskites Red Emitters

Synthesis, structural and optical properties of a novel double perovskite for LED applications

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New double perovskite Cd2MgTeO6:Sm3+, Na+ tellurate phosphors with abnormal thermal quenching for applications in white and plant growth lighting

Cited by 13 publications

References 56 publications

A novel Eu3+ activated Ca3Zn3Te2O12 tellurate red phosphor for white LEDs with high color stability and color purity

A novel Eu3+ activated Ca3Zn3Te2O12 tellurate red phosphor for white LEDs with high color stability and color purity

Unveiling Local Electronic Structures of Manganese‐Doped Double Perovskites Red Emitters

Synthesis, structural and optical properties of a novel double perovskite for LED applications

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Product

Resources

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A novel Eu³⁺ activated Ca₃Zn₃Te₂O₁₂ tellurate red phosphor for white LEDs with high color stability and color purity

A novel Eu³⁺ activated Ca₃Zn₃Te₂O₁₂ tellurate red phosphor for white LEDs with high color stability and color purity