Full-visible-spectrum emission with high color rendering index and low correlated color temperature enabled by a single-phased phosphor of α-Sr2V1.98P0.02O7: 0.5% Eu3+

Yin, Yanzhen; Wang, Zhen; Zhu, Maochen; Zhang, Yue; Li, Jianhong; Dou, Chao; Sun, Shijia; Teng, Bing; Che, Yang; Zhong, Degao

doi:10.1016/j.materresbull.2021.111344

Cited by 16 publications

(4 citation statements)

References 28 publications

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“…% Eu, the CP improved to 0.86. This highest CP and low CCT with the CIE coordinates mov ing to the red emission region is due to the energy transfer, as explained earlier, which i congruent with similar reports [70,71].…”

Section: Photoluminescence Studysupporting

confidence: 91%

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Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

et al. 2022

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Nowadays, orthovanadates are studied because of their unique properties for optoelectronic applications. In this work, the LuVO4:Eu3+, Bi3+ films were prepared by the sol–gel method, using a new simple route, and deposited by the dip-coating technique. The obtained films are transparent, fracture-free, and homogenous. The sol–gel process was monitored by Fourier-transform infrared spectroscopy (FTIR), and according to X-ray diffraction (XRD) results, the crystal structure was tetragonal, and films that were highly oriented along the (200) low-energy direction were obtained. The morphological studies by scanning electron microscopy (SEM) showed uniformly distributed circular agglomerations of rice-like particles with nanometric sizes. The luminescence properties of the films were analyzed using a fixed concentration of 2.5 at. % Eu3+ and different concentrations of Bi3+ (0.5, 1.0, and 1.5 at. %); all the samples emit in red, and it has been observed that the light yield of Eu3+ is enhanced as the Bi3+ content increases when the films are excited at 350 nm, which corresponds to the 1S0→3P1 transition of Bi3+. Therefore, a highly efficient energy transfer mechanism between Bi3+ and Eu3+ has been observed, reaching up to 71%. Finally, it was established that this energy transfer process occurs via a quadrupole–quadrupole interaction.

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Section: Photoluminescence Studysupporting

confidence: 91%

“…% Eu, the CP improved to 0.86. This highest CP and low CCT with the CIE coordinates moving to the red emission region is due to the energy transfer, as explained earlier, which is congruent with similar reports [70,71]. Finally, the CIE chromaticity coordinates (Figure 12) proved that when the bismuth concentration is 1.5 at.…”

Section: Photoluminescence Studysupporting

confidence: 88%

Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

et al. 2022

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“…The luminescence intensity of the green light gradually increases as the concentration of Tb 2 O 3 increases from 0 mol.% to 4 mol.%. 28 This where n = (x−0.3320)/(0.1858−y), and (x, y) is the color coordinates.…”

Section: Resultsmentioning

confidence: 99%

Photoluminescence Properties and Lasing Performance of Dy³⁺/Tb³⁺ Co-Doped Antimony Phosphate Glasses

Sun

Zhao

Ren

et al. 2021

ECS J. Solid State Sci. Technol.

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Dy3+/Tb3+ co-doped antimony phosphate glasses (PDTs) were prepared by a common melt-quenching method. The spectra properties of PDTs were analyzed in the range of 300 to 850 nm. The sensitization mechanism of Dy3+ in enhancing the visible fluorescence of Tb3+ ions was explored. Since the energy of Dy3+ ions are effectively transferred to Tb3+ ions, an enhancement of Tb3+ emission at 545 nm and a reduction of Dy3+ emission at 575 nm were observed. The energy transfer (ET) between Dy3+ and Tb3+ ions result from the electric dipole interaction. In the PD1T4 sample pumped at 450 nm, a maximum ET efficiency of 63.1% was obtained. The larger values of laser characteristic parameters of Tb3+: 5D4 → 7F5 transition indicate that these antimony phosphate glasses have great potential for green lasing operation.

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“…At the outset, the obtained LED suffers from high color temperature (T C 4 6000 K) and a low color rendering index (R a o 80) due to the lack of a red component. [5][6][7] Afterwards, this deficiency of such pc-WLEDs can be overcome by replacing the yellow emitting phosphor with another yellow emitting phosphor having a sufficient amount of red component or by mixing red-emitting phosphors together and then coating on a blue emitting chip. For example, by introducing an activator ion to achieve sufficient red light emission, Ma et al doped Pr 3+ and Mn 2+ into YAG:Ce 3+ to achieve a WLED chip with an R a of 84.8 and a CCT of 4272 K. 8 And Lian et al mixed Cs 2 GeF 6 :Mn 4+ with YAG:Ce 3+ to obtain a WLED with R a = 90.5 and CCT = 3385 K. 9 However, the sharp peak of the blue LED chip has negative effects on the human body.…”

Section: Introductionmentioning

confidence: 99%

Tunable ultra-broadband full-visible-spectral emission of Bi³⁺-doped aluminate phosphors enabled by structure transformation and site occupancy engineering

Bian,

Zhu,

et al. 2023

J. Mater. Chem. C

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Full-visible-spectrum emission with high color rendering index and low correlated color temperature enabled by a single-phased phosphor of α-Sr2V1.98P0.02O7: 0.5% Eu3+

Cited by 16 publications

References 28 publications

Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

Photoluminescence Properties and Lasing Performance of Dy³⁺/Tb³⁺ Co-Doped Antimony Phosphate Glasses

Tunable ultra-broadband full-visible-spectral emission of Bi³⁺-doped aluminate phosphors enabled by structure transformation and site occupancy engineering

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Full-visible-spectrum emission with high color rendering index and low correlated color temperature enabled by a single-phased phosphor of α-Sr2V1.98P0.02O7: 0.5% Eu3+

Cited by 16 publications

References 28 publications

Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

Photoluminescence Properties and Lasing Performance of Dy3+/Tb3+ Co-Doped Antimony Phosphate Glasses

Tunable ultra-broadband full-visible-spectral emission of Bi3+-doped aluminate phosphors enabled by structure transformation and site occupancy engineering

Contact Info

Product

Resources

About

Photoluminescence Properties and Lasing Performance of Dy³⁺/Tb³⁺ Co-Doped Antimony Phosphate Glasses

Tunable ultra-broadband full-visible-spectral emission of Bi³⁺-doped aluminate phosphors enabled by structure transformation and site occupancy engineering