Synthesis and luminescence properties of single-phase Ca2P2O7:Eu2+, Eu3+ phosphor with tunable red/blue emission

Dong, Chao; Zhang, Yanjie; Duan, Jianjun; Yu, Jingjie

doi:10.1007/s10854-019-02011-7

Cited by 7 publications

(3 citation statements)

References 35 publications

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“…As shown in Figure 3, the XPS measurements exhibit binding energies corresponding to Ba 3d, Y 3d, Al 2p, O 1s, Eu 3d, and Nd 3d [35][36][37]. Furthermore, as shown in Figure 3e, the high-resolution (HR) XPS depicts the binding energy of the Eu 3d (1125.09 eV) signal, which is consistent with that of Eu 2+ 3d 5/2 [38][39][40]. The binding energy of Nd 3d peaks at 977.2 eV (Nd 3d 5/2 ) and 1000.6 eV (Nd 3d 3/2 ) as can be seen in Figure 3f [41][42][43][44][45][46].…”

Section: Xrd Patterns and Morphology Analysissupporting

confidence: 64%

Design, Synthesis, and Characterization of a Novel Blue-Green Long Afterglow BaYAl3O7:Eu2+, Nd3+ Phosphor and Its Anti-Counterfeiting Application

Wu,

Liu,

Gao

et al. 2023

Nanomaterials

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Herein, a series of novel long afterglow nanophosphors BaYAl3O7:Eu2+, Nd3+ was synthesized by the combustion method. The investigation encompassed the characterization of X-ray diffraction, morphology, chemical valence, elemental composition, and photoluminescence behavior of BaYAl3O7:Eu2+ and BaYAl3O7:Eu2+, Nd3+ nanoparticles. Under 365 nm excitation, BaYAl3O7:Eu2+ and BaYAl3O7:Eu2+, Nd3+ show emission bands centered at 497 nm and 492 nm, which are attributed to the 4f65d→4f7 transition of Eu2+ ions. The optimal samples of BaYAl3O7:0.03Eu2+ and BaYAl3O7:0.03Eu2+, 0.02Nd3+ have average fluorescence lifetimes of 850 ns and 1149 ns, respectively. The co-doping of Nd3+ ions as the trap centers produced long afterglow luminescence properties, and the afterglow time could reach up to 8 min. Furthermore, the fluorescent powder can be mixed with polyacrylic acid to prepare anti-counterfeiting inks; a clover pattern and snowflake pattern have been successfully printed using screen printing technology, proving its potential application in the field of anti-counterfeiting.

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Section: Xrd Patterns and Morphology Analysissupporting

confidence: 64%

Design, Synthesis, and Characterization of a Novel Blue-Green Long Afterglow BaYAl3O7:Eu2+, Nd3+ Phosphor and Its Anti-Counterfeiting Application

Wu,

Liu,

Gao

et al. 2023

Nanomaterials

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“…The HR-XPS spectrum of Ba is composed of two main peaks at 779.3 and 794.6 eV in Figure b, corresponding to the Ba 3d 5/2 and 3d 3/2 , respectively. , In Figure c, the two strong peaks at around 444.1 and 451.7 eV correspond to In 3d 5/2 and In 3d 3/2 , which are due to the In 3+ . , The peaks that were observed at 25.4 and 27.4 eV in Figure d can be assigned to the binding energies of Ta 4f 7/2 and 4f 5/2 , respectively. , In the high-resolution XPS spectra of Eu 3d, the characteristic peaks of Eu 3+ and Eu 2+ were observed. The four peaks at 1134.3, 1163.2, 1123.7, and 1152.9 eV were obtained by XPSPEAK4.1 software fitting, corresponding to the binding energy of 3d 5/2 and 3d 3/2 of Eu 3+ and Eu 2+ , ,, and the ratio of the peak area of Eu 3+ /Eu 2+ was 2:1. The peak of O 1s shows a high degree of asymmetry from Figure f, and two peaks of 529.6 and 534.3 eV can be obtained by fitting.…”

Section: Resultsmentioning

confidence: 99%

“…27,29 In the high-resolution XPS spectra of Eu 3d, the characteristic peaks of Eu 3+ and Eu 2+ were observed. The four peaks at 1134.3, 1163.2, 1123.7, and 1152.9 eV were obtained by XPSPEAK4.1 software fitting, corresponding to the binding energy of 3d 5/2 and 3d 3/2 of Eu 3+ and Eu 2+ , 23,30,31 and the ratio of the peak area of Eu 3+ /Eu 2+ was 2:1. The peak of O 1s shows a high degree of asymmetry from Figure 5f, and two peaks of 529.6 and 534.3 eV can be obtained by fitting.…”

Section: Resultsmentioning

confidence: 99%

Stable Tunable Luminescence of Hetero-valent Eu Ion Activated Ba₂InTaO₆ Phosphors Synthesized by Defect-Induced Self-Reduction in the Molten-Salt Method

Wang

et al. 2022

Inorg. Chem.

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Functional materials with stable and adjustable luminescence have recently become a research hotspot for their broad application prospects. Tunable luminescence can be realized by the doping of hetero-valent europium ions. High-temperature hydrogen atmosphere reduction is required in the traditional preparation of Eu 2+ -doped phosphors. Herein, an anoxic molten-salt medium environment was established to form oxygen vacancy defects in the reaction system and induce the self-reduction of Eu 3+ ions to obtain Eu 2+ ions. X-ray photoelectron spectroscopy (XPS) results confirm the existence of Eu 2+ and Eu 3+ ions in the samples, and the fluorescence spectrum shows that hetero-valent Eu ions can synergistically emit light effectively. Under 266 nm ultraviolet light excitation, the white light emission was successfully realized for a Ba 2 InTaO 6 :Eu phosphor by different emission combinations of Eu 3+ and Eu 2+ ions. In addition, the Ba 2 InTaO 6 :Eu phosphor exhibits adjustable luminescence from greenish-yellow to red exciting at 390−490 nm, which has superior stability in a high-temperature and high-humidity environment. Therefore, it is very promising that Ba 2 InTaO 6 :Eu will be used as multi-color functional materials in many fields such as communication encryption and colorful decoration.

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An Advanced Tunable Multimodal Luminescent La₄GeO₈: Eu²⁺, Er³⁺ Phosphor for Multicolor Anticounterfeiting

Pei

Wei

Wang

et al. 2021

Adv Funct Materials

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The development of advanced luminescent materials is of great importance to the anticounterfeiting application and still confronts with lots of challenges. At present, most anticounterfeiting luminescent materials are based on a monotonous photoluminescence model, which is easily faked by substitutes. Therefore, in this work, a multimodal La4GeO8: Eu2+, Er3+ material is reported, which can emit red, purple, baby blue, and green light under the increased excitation wavelength from 250 to 380 nm. Meanwhile, the phosphor also shows green upconversion luminescence under the NIR (980 and 808 nm) laser irradiation. Moreover, the phosphor features excellent stability and humidity resistance against harsh conditions. Based on the integrated feature, a functional anticounterfeiting application is designed. Results demonstrate that the multimodal luminescent feature can be easily detected by using a portable ultraviolet lamp or NIR (808 or 980 nm) laser. The unique characteristic will be complicated to counterfeit and show high‐level security in the field of advanced anticounterfeiting.

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Synthesis and luminescence properties of single-phase Ca2P2O7:Eu2+, Eu3+ phosphor with tunable red/blue emission

Cited by 7 publications

References 35 publications

Design, Synthesis, and Characterization of a Novel Blue-Green Long Afterglow BaYAl3O7:Eu2+, Nd3+ Phosphor and Its Anti-Counterfeiting Application

Design, Synthesis, and Characterization of a Novel Blue-Green Long Afterglow BaYAl3O7:Eu2+, Nd3+ Phosphor and Its Anti-Counterfeiting Application

Stable Tunable Luminescence of Hetero-valent Eu Ion Activated Ba₂InTaO₆ Phosphors Synthesized by Defect-Induced Self-Reduction in the Molten-Salt Method

An Advanced Tunable Multimodal Luminescent La₄GeO₈: Eu²⁺, Er³⁺ Phosphor for Multicolor Anticounterfeiting

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Synthesis and luminescence properties of single-phase Ca2P2O7:Eu2+, Eu3+ phosphor with tunable red/blue emission

Cited by 7 publications

References 35 publications

Design, Synthesis, and Characterization of a Novel Blue-Green Long Afterglow BaYAl3O7:Eu2+, Nd3+ Phosphor and Its Anti-Counterfeiting Application

Design, Synthesis, and Characterization of a Novel Blue-Green Long Afterglow BaYAl3O7:Eu2+, Nd3+ Phosphor and Its Anti-Counterfeiting Application

Stable Tunable Luminescence of Hetero-valent Eu Ion Activated Ba2InTaO6 Phosphors Synthesized by Defect-Induced Self-Reduction in the Molten-Salt Method

An Advanced Tunable Multimodal Luminescent La4GeO8: Eu2+, Er3+ Phosphor for Multicolor Anticounterfeiting

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Stable Tunable Luminescence of Hetero-valent Eu Ion Activated Ba₂InTaO₆ Phosphors Synthesized by Defect-Induced Self-Reduction in the Molten-Salt Method

An Advanced Tunable Multimodal Luminescent La₄GeO₈: Eu²⁺, Er³⁺ Phosphor for Multicolor Anticounterfeiting