Synthesis and photoluminescence properties of Eu3+-activated LiCa3ZnV3O12white-emitting phosphors

Huang, Xiaoyong; Guo, Heng

doi:10.1039/c8ra03075h

Cited by 39 publications

(19 citation statements)

References 69 publications

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“…Luminescence studies revealed strong, broad excitation bands ranging between 250 and 400 nm, with a peak centred at λ = 343 nm due to the VO 4 3− ion. The ET mechanism occurred due to transfer of energy from the LCZV host to Eu 3+ ions, as shown in Figure . The contribution of a broad bluish‐green emission band and red emission lines from Eu 3+ in the LCZV:Eu 3+ phosphors provided a bright tunable white light under 343 nm excitation.…”

Section: Development Of New Phosphorscontrasting

confidence: 67%

Tunable lanthanide/transition metal ion‐doped novel phosphors for possible application in w‐LEDs: a review

Tiwari

Dhoble

2019

Luminescence

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Lanthanide-based phosphors have been extensively investigated for their possible applications in solid-state lighting technologies especially for white-light-emitting diodes. In this review article emphasis has been laid on discussing the recent developments of phosphors for warm white-light production based on various optical characteristics such as quantum efficiency, thermal stability, short emission decay time, long-term stability, facile synthesis, and low cost of production. We have tried to cover the essential and latest discoveries of the lanthanide/rare earth-doped phosphors after 2010. New generations of narrow-band phosphors have also been included. The optical and material properties of several novel phosphors and their luminescence characteristics have been thoroughly discussed.

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Section: Development Of New Phosphorscontrasting

confidence: 67%

Tunable lanthanide/transition metal ion‐doped novel phosphors for possible application in w‐LEDs: a review

Tiwari

Dhoble

2019

Luminescence

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“…Therefore, the concentration quenching mechanism was the non-radiative energy transfer among the adjacent Mn 4+ ions in SGA:Mn 4+ phosphors, which was similar to the previous research. 53,[61][62][63] Fig . 5 illustrates the CIE chromaticity diagram of SGA:0.1%Mn 4+ sample.…”

Section: Resultsmentioning

confidence: 99%

Novel far-red-emitting SrGdAlO₄:Mn⁴⁺ phosphors with excellent responsiveness to phytochrome P_FR for plant growth lighting

et al. 2018

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“…Compared to conventional lighting sources such as incandescent and uorescent lamps, WLEDs have attracted great attention owing to their numerous advantages such as small volume, low power consumption, high brightness, better exible design, reliability, long persistence and eco-friendly nature. [1][2][3][4][5][6][7][8][9] There exists a deciency of red components in the commercially available WLEDs composed of blue emitting InGaN LED chips coated with a yellow Y 3 Al 5 O 12 :Ce 3+ phosphor. 10,11 Nevertheless, some factors that are involved in reducing the quality of white light include a low color rendering index (CRI), high correlated color temperature (CCT), thermal quenching, blue-halo effect and current dependence of chromaticity.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence properties of novel Ba₂Lu₅B₅O₁₇:Eu³⁺ red emitting phosphors with high color purity for near-UV excited white light emitting diodes

et al. 2018

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A series of new red-emitting Ba 2 Lu 4.98Àx Eu x La 0.02 B 5 O 17 (0.1 # x # 1.0) phosphors were synthesized via the high-temperature solid-state reaction method. The phase formation of the as-synthesized Ba 2 Lu 4.48 Eu 0.5 La 0.02 B 5 O 17 phosphor was confirmed by powder X-ray diffraction analysis. It was found that La 3+ doping resulted in the reduction of LuBO 3 impurities and thus pure phase Ba 2 Lu 5 B 5 O 17 was realised. The morphology of Ba 2 Lu 4.48 Eu 0.5 La 0.02 B 5 O 17 phosphors was studied by field emission scanning electron microscopy (FE-SEM). As a function of Eu 3+ concentration the photoluminescence spectra and decay lifetimes were investigated in detail. Under excitation at 396 nm, a dominant red emission peak located at 616 nm ( 5 D 0 / 7 F 2 ) indicated that Eu 3+ ions mainly occupied low symmetry sites with a noninversion center in Ba 2 Lu 4.48 Eu 0.5 La 0.02 B 5 O 17 . The optimal Eu 3+ ion concentration was found to be x ¼ 0.5 and the critical distance of Eu 3+ was determined to be 6.55Å. In addition, the concentration quenching takes place via dipole-dipole interactions. The phosphors exhibited good CIE (Commission International de I'Eclairage) color coordinates (x ¼ 0.643, y ¼ 0.356) situated in the red region and a high color purity of 97.8%. Furthermore, the internal quantum efficiency and the thermal stability of Ba 2 Lu 4.48 Eu 0.5 La 0.02 B 5 O 17 phosphors were also investigated systematically. The results suggest that Ba 2 Lu 4.48 Eu 0.5 La 0.02 B 5 O 17 may be a potential red phosphor for white light-emitting diodes.

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Synthesis and photoluminescence properties of Eu³⁺-activated LiCa₃ZnV₃O₁₂white-emitting phosphors

Abstract: Single-component white-emitting phosphors are highly promising for applications in phosphor-converted white light-emitting diodes. In this paper, novel single-phase LiCa 3(1Àx)

Cited by 39 publications

References 69 publications

Tunable lanthanide/transition metal ion‐doped novel phosphors for possible application in w‐LEDs: a review

Tunable lanthanide/transition metal ion‐doped novel phosphors for possible application in w‐LEDs: a review

Novel far-red-emitting SrGdAlO₄:Mn⁴⁺ phosphors with excellent responsiveness to phytochrome P_FR for plant growth lighting

Photoluminescence properties of novel Ba₂Lu₅B₅O₁₇:Eu³⁺ red emitting phosphors with high color purity for near-UV excited white light emitting diodes

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Synthesis and photoluminescence properties of Eu3+-activated LiCa3ZnV3O12white-emitting phosphors

Abstract: Single-component white-emitting phosphors are highly promising for applications in phosphor-converted white light-emitting diodes. In this paper, novel single-phase LiCa 3(1Àx)

Cited by 39 publications

References 69 publications

Tunable lanthanide/transition metal ion‐doped novel phosphors for possible application in w‐LEDs: a review

Tunable lanthanide/transition metal ion‐doped novel phosphors for possible application in w‐LEDs: a review

Novel far-red-emitting SrGdAlO4:Mn4+ phosphors with excellent responsiveness to phytochrome PFR for plant growth lighting

Photoluminescence properties of novel Ba2Lu5B5O17:Eu3+ red emitting phosphors with high color purity for near-UV excited white light emitting diodes

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Synthesis and photoluminescence properties of Eu³⁺-activated LiCa₃ZnV₃O₁₂white-emitting phosphors

Novel far-red-emitting SrGdAlO₄:Mn⁴⁺ phosphors with excellent responsiveness to phytochrome P_FR for plant growth lighting

Photoluminescence properties of novel Ba₂Lu₅B₅O₁₇:Eu³⁺ red emitting phosphors with high color purity for near-UV excited white light emitting diodes