Synthesis and luminescence properties of NaAl11O17:Mn2+ green phosphor for white LEDs

Cao, Renping; Peng, Dedong; Xu, Haidong; Jiang, Shenhua; Luo, Zhiyang; Ao, Hui; Liu, Pan

doi:10.1016/j.jlumin.2016.06.028

Cited by 35 publications

(13 citation statements)

References 24 publications

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“…As the most important characters for the use of LED as the backlight, the QE, thermal quenching property, and FWHM of KAO:0.1Eu 2+ , 0.15Mn 2+ are compared with the characteristics of some famous green phosphors, and the relevant information is shown in Table 1 26,46–48 . It can be found that our phosphor has the supereminent performance in each aspect of FWHM, IQE and thermal quenching property.…”

Section: Resultsmentioning

confidence: 98%

Design of a superb Eu²⁺–Mn²⁺ co‐doped narrow‐band green phosphor via nearly 100% energy transfer efficiency

Wang

Piao

et al. 2022

J Am Ceram Soc.

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The excellent narrow-band emitters, especially the green ones, are regarded as a pivotal research direction for light-emitting diodes (LED) backlights in liquidcrystal displays (LCDs). A nearly single-peak green emission centered at 513 nm with a full width at half maximum of 28 nm is reached in KAl 11 O 17 :0.1Eu 2+ , 0.15Mn 2+ phosphor via nearly 100% energy transfer (ET) efficiency, and the extended X-ray absorption fine structure analysis elucidates its mechanism, which is that Eu 2+ and Mn 2+ are constrained to form Eu 2+ -Mn 2+ pairs with a small distance 3.7 Å caused by the local environment relaxation inducement. Meanwhile, by creating an unhindered energy flow between Eu 2+ , Mn 2+ and K + /O 2− defect levels through ET and multilevel electron trapped and recombination process, the KAO:Eu 2+ , Mn 2+ phosphors perform superb photoluminescence property with a high color purity of 83%, an excellent thermal stability (94%@200 • C), and unexceptionable internal and external quantum efficiencies of 91.7% and 66.4%, which all are superior to characteristics of commercial β-SiAlON:Eu 2+ phosphor. Moreover, the white LED fabricated using KAO:Eu 2+ , Mn 2+ to provide green component shows a wide color gamut of 105% National Television System Committee. These results indicate a potential for an application of our material in LCD-LED backlights, and the design of such local relaxation-induced structure provides a significative reference to develop the new narrow-band emitters.

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Section: Resultsmentioning

confidence: 98%

Design of a superb Eu²⁺–Mn²⁺ co‐doped narrow‐band green phosphor via nearly 100% energy transfer efficiency

Wang

Piao

et al. 2022

J Am Ceram Soc.

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“…To obtain an ideal narrow-band emitting phosphor, the highly symmetric BZAO ( P 6 3/ mmc ) compound with a densely stacked (ZnAl 10 O 16 ) spinel structure and a mirror layer feature of (AlO + BaO) was chosen for the study. The crystal structure of BZAO was inferred from NaAl 11 O 17 ( P 6 3/ mmc ), 26 and its crystal structure is shown in Fig. 1(d).…”

Section: Resultsmentioning

confidence: 99%

A blue-emitting Eu²⁺-activated BaZnAl₁₀O₁₇phosphor for white light emitting diodes: structure and luminescence properties

Zhang

Jiang

Chen

et al. 2022

Inorg. Chem. Front.

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“…180−184 The Tanabe−Sugano diagram can give the relationship between lattice symmetry and luminescence properties. 185,186 The involved energy parameters include crystal field energy D q and Racah parameters B and C. Crystal field energy D q represents the symmetry of cation sites that are occupied by Mn 2+ ions. Racah parameter B stands for covalency between activators and binding ligands.…”

Section: Common Nir-emitting Activators With Intrinsic Electron Trans...mentioning

confidence: 99%

“…The photoluminescence absorption (excitation) band is mainly attributed to electron transitions of 6 A 1 → 4 T 1 (1) and 6 A 1 → 4 T 1 (2), and the absorption (excitation) band usually ranges from the n-UV to blue region. The intrinsic electron transition of the photoluminescence emission band belongs to 4 T 1 (1) → 6 A 1 and 4 T 1 (2) → 6 A 1 . − The Tanabe–Sugano diagram can give the relationship between lattice symmetry and luminescence properties. , The involved energy parameters include crystal field energy D q and Racah parameters B and C . Crystal field energy D q represents the symmetry of cation sites that are occupied by Mn 2+ ions.…”

Section: Common Nir-emitting Activators With Intrinsic Electron Trans...mentioning

confidence: 99%

Advances in Near-Infrared Luminescent Materials without Cr³⁺: Crystal Structure Design, Luminescence Properties, and Applications

et al. 2021

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Near-infrared (NIR) luminescent materials are attracting much attention as the promising applications in food composition analysis, night vision, biosensors, and so on. Besides Cr3+ ions, other ions such as Eu2+, Ce3+, and Bi3+, etc. recently also exhibit remarkable broadband NIR light emission in inorganic hosts. The key issues are to optimize their photoluminescence quantum yield and reveal an unclear “structure-luminescence” relationship. Herein, photoluminescence properties of NIR luminescent materials without Cr3+ are systematically summarized. Importantly, we propose a significant influence of local crystal structure on NIR luminescence properties. These strategies contain (i) ligand covalency, (ii) strong crystal field and distorted lattice, (iii) selective sites occupation, and (iv) mixed valences and doping level control. The proposed “structure-luminescence” relationship can provide a new insight into exploit NIR luminescent materials and optimize current luminescent materials. Furthermore, the concept of “high-throughput DFT prediction-crystal structure design-photoluminescence performances optimization” is summarized to swiftly develop targeted NIR luminescent materials. Subsequently, energy transfer strategies and application prospects are summarized in detail. This review discusses the relationship between crystal structure and NIR light emission based on a high-throughput method. The proposed concept can offer a guidance to exploit a series of novel NIR luminescent materials and clarify underlying luminescence mechanisms.

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Synthesis and luminescence properties of NaAl11O17:Mn2+ green phosphor for white LEDs

Cited by 35 publications

References 24 publications

Design of a superb Eu²⁺–Mn²⁺ co‐doped narrow‐band green phosphor via nearly 100% energy transfer efficiency

Design of a superb Eu²⁺–Mn²⁺ co‐doped narrow‐band green phosphor via nearly 100% energy transfer efficiency

A blue-emitting Eu²⁺-activated BaZnAl₁₀O₁₇phosphor for white light emitting diodes: structure and luminescence properties

Advances in Near-Infrared Luminescent Materials without Cr³⁺: Crystal Structure Design, Luminescence Properties, and Applications

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Synthesis and luminescence properties of NaAl11O17:Mn2+ green phosphor for white LEDs

Cited by 35 publications

References 24 publications

Design of a superb Eu2+–Mn2+ co‐doped narrow‐band green phosphor via nearly 100% energy transfer efficiency

Design of a superb Eu2+–Mn2+ co‐doped narrow‐band green phosphor via nearly 100% energy transfer efficiency

A blue-emitting Eu2+-activated BaZnAl10O17phosphor for white light emitting diodes: structure and luminescence properties

Advances in Near-Infrared Luminescent Materials without Cr3+: Crystal Structure Design, Luminescence Properties, and Applications

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Design of a superb Eu²⁺–Mn²⁺ co‐doped narrow‐band green phosphor via nearly 100% energy transfer efficiency

Design of a superb Eu²⁺–Mn²⁺ co‐doped narrow‐band green phosphor via nearly 100% energy transfer efficiency

A blue-emitting Eu²⁺-activated BaZnAl₁₀O₁₇phosphor for white light emitting diodes: structure and luminescence properties

Advances in Near-Infrared Luminescent Materials without Cr³⁺: Crystal Structure Design, Luminescence Properties, and Applications