Luminescence properties of a novel cyan-blue light emitting Ce3+doped SrZrSi2O7 phosphor

Baghel, Sanjay Kumar; Brahme, Nameeta; Bisen, D. P.; Patle, Yugbodh; Richhariya, Tripti; Chandrawanshi, Ekta; Belodhiya, Chitrkant

doi:10.1016/j.optmat.2022.112141

Cited by 17 publications

(12 citation statements)

References 30 publications

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“…However, if we determine which ion is to be replaced based on the principle of which two ions are closer in radius, then this may cause some confusing factors such as Mg 2+ (CN = 6, r = 0.72 Å), so we needed to use the former to decide which ion is truly replaced. In this matrix, the replacement possibility of Mn 4+ and Yb 3+ can be deduced from the following equation [19]:

D_{r} goodbreak= \frac{((), R_{m} ((), CN) goodbreak- R_{d} ((), CN))}{R_{m} ((), CN)}

…”

Section: Resultsmentioning

confidence: 99%

A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect

Cheng

Long

et al. 2023

Luminescence

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A novel far‐red emitting phosphor Sr2MgWO6: Mn4+ was fabricated using high‐temperature solid‐state reaction. X‐ray diffraction patterns, scanning electron microscopy images, and photoluminescence excitation and photoluminescence spectra for this phosphor were analyzed in detail. The analysis revealed that its emission ranged from 600 to 800 nm and peaked at 699 nm, which was attributed to the 2Eg→4A2g transition of Mn4+ under 314 nm excitation. Moreover, we introduced rare‐earth Yb3+ ions into the Sr2MgWO6:Mn4+ to improve its far‐red emitting intensity. The photoluminescence (PL) intensity of the Yb3+ co‐doped phosphor was three times higher than that of the single‐doped phosphor. Therefore charge compensation is an efficient approach to improving PL intensity. The phosphor emitted a far‐red light that resembled the pigments essential for plant growth in terms of the absorption spectrum. Therefore, the obtained phosphor, Sr2MgWO6:0.006Mn4+,0.2Yb3+, had the potential to be a new type of far‐red luminescent powder for indoor plant growth LEDs.

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D_{r} goodbreak= \frac{((), R_{m} ((), CN) goodbreak- R_{d} ((), CN))}{R_{m} ((), CN)}

…”

Section: Resultsmentioning

confidence: 99%

A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect

Cheng

Long

et al. 2023

Luminescence

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“…[4,5,20] PL emission spectra of Zr 1Àx Ce x O 2 with x = 0.005, 0.01, 0.02, and 0.03 samples were recorded as a function of wavelength under an excitation wavelength of 290 nm. Furthermore, PL emission data were converted into energy units using the Jacobian transformation, [21,22] and are shown in Figure 3. The Ce-doped ZrO 2 phosphor showed a broad emission band in the UV-visible light region from 1.77 to 3.35 eV.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, non-radiative energy transfer occurred between Ce 3+ ions that reduced the efficiency and emission intensity. [23,24] The PL spectrum of Zr 0.995 Ce 0.005 O 2 was fitted with six Gaussian functions [22] and is shown in Figure 4. The fit parameter R 2 = 0.9992 indicated a good fit between the measured and fitted data with peaks centered at 3.14, 3.0, 2.81, 2.63, 2.55 and 2.30 eV.…”

Section: Resultsmentioning

confidence: 99%

Luminescence properties of Ce‐doped ZrO₂ phosphors synthesized by combustion method

et al. 2023

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Zr1−xCexO2 with x = 0.005, 0.01, 0.02, and 0.03 samples were synthesized using a combustion technique. The X‐ray diffraction results revealed that Ce‐doped ZrO2 nanoparticles were in a monoclinic structure up to 1 mol% Ce concentration. The increase in the Ce concentration caused more distortion in the monoclinic structure of zirconia. The samples showed a mixed phase (monoclinic + tetragonal) beyond 1 mol% Ce content. The crystallite size (D) and strain (ε) were calculated from the Williamson–Hall equation. The D decreased from 25 ± 1 to 20 ± 1 nm and ε increased from 0.03 to 0.28% with an increase in Ce concentration. Photoluminescence (PL) spectra of Zr1−xCexO2 showed emission in the blue region under an excitation wavelength of 290 nm. Zr0.995Ce0.005O2 showed the highest PL intensity with an average lifetime of 0.93 μs, and the PL intensity decreased with the increase in the Ce concentration. Thermoluminescence (TL) glow curves of Zr1−xCexO2 were measured after gamma irradiation (500 Gy) with a heating rate of 5 K s−1. The TL curve of Zr0.995Ce0.005O2 showed two prominent peaks at 412 K (peak 1) and 600 K (peak 2). The first TL glow peak was shifted towards a higher temperature at 440 K above 1 mol% Ce concentration. Repetitive TL measurements on the same aliquot exhibited excellent repeatability. Kinetic parameters associated with the TL peaks were calculated using the curve fitting method. Peak 1 followed non‐first‐order kinetics. The value of the activation energy of the 440 K peak was found to be 0.95 ± 0.01 eV for Zr0.99Ce0.01O2. These findings showed that Zr1−xCexO2 might be used in lighting and radiation dosimeter applications.

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“…R 0 is given by (14) in which C DA is the rate of direct energy transfer from donor to acceptor. W m in (12) is the rate of energy migration among donor ions. S is the index of mechanism involved that can take the values 6, 8 and 10 for d-d, d-q and q-q multi-pole interaction respectively.…”

Section: Time-resolved Pl Spectroscopymentioning

confidence: 99%

“…, for blue colour emission for its innumerable applications in display devices, wLEDs, scintillators, laser amplifiers in fibre-optics communications, solar cells, etc. 12–18 Individually Ce 3+ doped LAO have been studied earlier and have shown excellent luminescence. 19–21 This motivated the authors to synthesize and investigate luminescence in novel Ce 3+ doped nano-composite LaAlO 3 /MgO material.…”

Section: Introductionmentioning

confidence: 99%

Green emission from trivalent cerium doped LaAlO₃/MgO nano-composite for photonic and latent finger printing applications

et al. 2023

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Luminescence properties of a novel cyan-blue light emitting Ce3+doped SrZrSi2O7 phosphor

Cited by 17 publications

References 30 publications

A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect

A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect

Luminescence properties of Ce‐doped ZrO₂ phosphors synthesized by combustion method

Green emission from trivalent cerium doped LaAlO₃/MgO nano-composite for photonic and latent finger printing applications

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Luminescence properties of a novel cyan-blue light emitting Ce3+doped SrZrSi2O7 phosphor

Cited by 17 publications

References 30 publications

A novel Mn4+‐activated far‐red Sr2MgWO6 phosphor: synthesis, luminescence enhancement, and application prospect

A novel Mn4+‐activated far‐red Sr2MgWO6 phosphor: synthesis, luminescence enhancement, and application prospect

Luminescence properties of Ce‐doped ZrO2 phosphors synthesized by combustion method

Green emission from trivalent cerium doped LaAlO3/MgO nano-composite for photonic and latent finger printing applications

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A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect

A novel Mn⁴⁺‐activated far‐red Sr₂MgWO₆ phosphor: synthesis, luminescence enhancement, and application prospect

Luminescence properties of Ce‐doped ZrO₂ phosphors synthesized by combustion method

Green emission from trivalent cerium doped LaAlO₃/MgO nano-composite for photonic and latent finger printing applications