Enhanced red emission of glycothermally synthesized Ce:YAG nanophosphors via Mn2+ addition

Peter, Samuel; Richards, Morgan; Fang, Qiyin; Kitai, Adrian H.

doi:10.1016/j.matchemphys.2021.125497

Cited by 3 publications

(1 citation statement)

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“…But our material was synthesized under reducing environment, and it is known that glycothermal route yields predominantly Ce(III) for YAG:Ce. [19,29] Furthermore, the product was only very shortly exposed to air, only during the solid recovery and washing, after which the samples were stored in an Argon atmosphere without annealing. Thus, oxidation should have largely been prevented.…”

Section: Resultsmentioning

confidence: 99%

Ultra‐Small YPO₄‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%

Yan

Mesbah

Khrouz

et al. 2023

Small

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Synthesis of high quality colloidal Cerium(III) doped yttrium aluminum garnet (Y3Al5O12:Ce3+, “YAG:Ce”) nanoparticles (NPs) meeting simultaneously both ultra‐small size and high photoluminescence (PL) performance is challenging, as generally a particle size/PL trade‐off has been observed for this type of nanomaterials. The glycothermal route is capable to yield ultra‐fine crystalline colloidal YAG:Ce nanoparticles with a particle size as small as 10 nm but with quantum yield (QY) no more than 20%. In this paper, the first ultra‐small YPO4‐YAG:Ce nanocomposite phosphor particles having an exceptional QY‐to‐size performance with an QY up to 53% while maintaining the particle size ≈10 nm is reported. The NPs are produced via a phosphoric acid‐ and extra yttrium acetate‐assisted glycothermal synthesis route. Localization of phosphate and extra yttrium entities with respect to cerium centers in the YAG host has been determined by fine structural analysis techniques such as X‐ray diffration (XRD), solid state nuclear magnetic resonance (NMR), and high resolution scanning transmission electron microscopy (HR‐STEM), and shows distinct YPO4 and YAG phases. Finally, a correlation between the additive‐induced physico‐chemical environment change around cerium centers and the increasing PL performance has been suggested based on electron paramagnetic resonance (EPR), X‐ray photoelectron spectrometry (XPS) data, and crystallographic simulation studies.

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Section: Resultsmentioning

confidence: 99%

Ultra‐Small YPO₄‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%

Yan

Mesbah

Khrouz

et al. 2023

Small

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Modulation strategy of manganese valence state in yttrium gallium garnet

Han

Yang

et al. 2022

Ceramics International

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Ce/Mn/Cr: Y3Al5O12 phosphor ceramics for white LED and LD lighting with a high color rendering index

Liu

Luo

et al. 2023

Ceramics International

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Enhanced red emission of glycothermally synthesized Ce:YAG nanophosphors via Mn2+ addition

Cited by 3 publications

References 46 publications

Ultra‐Small YPO₄‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%

Ultra‐Small YPO₄‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%

Modulation strategy of manganese valence state in yttrium gallium garnet

Ce/Mn/Cr: Y3Al5O12 phosphor ceramics for white LED and LD lighting with a high color rendering index

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Enhanced red emission of glycothermally synthesized Ce:YAG nanophosphors via Mn2+ addition

Cited by 3 publications

References 46 publications

Ultra‐Small YPO4‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%

Ultra‐Small YPO4‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%

Modulation strategy of manganese valence state in yttrium gallium garnet

Ce/Mn/Cr: Y3Al5O12 phosphor ceramics for white LED and LD lighting with a high color rendering index

Contact Info

Product

Resources

About

Ultra‐Small YPO₄‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%

Ultra‐Small YPO₄‐YAG:Ce Composite Nanophosphors with a Photoluminescence Quantum Yield Exceeding 50%