Preparation and photoluminescence properties of CaSc2O4:Eu3+ red phosphor for white LEDs

Chen, Boli; Wu, Meihua; Liu, Qiyun; He, Can; Yang, Yifan; Liu, Yifei; Yang, Changchun; Wen, Xiao; Min, Xin; Huang, Zhaohui

doi:10.1007/s10854-022-08560-8

Cited by 4 publications

(2 citation statements)

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“…A series of excitation peaks after 350 nm of the samples exhibit two main excitation peaks at 395 and 464 nm, respectively. The absorption peak at 395 nm is attributed to the 7 F 0 → 5 L 6 transition of Eu 3+ , whereas that at 464 nm is attributed to the 7 F 0 → 5 D 2 transition of Eu 3+ [16]. The wavelength of the excitation light corresponding to the strongest excitation peak is 395 nm, which lies in the ultraviolet‐light range.…”

Section: Resultsmentioning

confidence: 99%

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Rapid synthesis of BaMoO₄:Eu³⁺ red phosphors using microwave irradiation

Cheng

Wang

et al. 2023

Luminescence

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This study synthesized BaMoO4:Eu 3+ red phosphors using the microwave method.In addition, the phase composition, morphology, and luminescence properties of the red phosphors were characterized using X-ray diffraction, field-scanning electron microscopy, and photoluminescence spectroscopy. The results revealed that doping red phosphors with different concentrations of Eu 3+ does not change the crystal structure of the matrix material. The BaMoO 4 :Eu 3+ phosphors exhibited micron-scale irregular polyhedra, which could be excited by ultraviolet light with a wavelength of 395 nm to induce red-light emission. The optimal dosage of Eu 3+ was 0.08, and the chromaticity coordinates of BaMoO 4 :0.08Eu 3+ phosphors were (0.5869, 0.3099).White light-emitting diode (w-LED) devices manufactured by using a combination of BaMoO 4 :0.08Eu 3+ phosphor and commercially available phosphors exhibited good white-light emission under the excitation of an ultraviolet chip. The BaMoO 4 :0.08Eu 3+ red phosphors that rapidly synthesized under the microwave field are expected to be used in w-LED devices.

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Section: Resultsmentioning

confidence: 99%

“…5 L 6 transition of Eu 3+ , whereas that at 464 nm is attributed to the 7 F 0 ! 5 D 2 transition of Eu 3+ [16]. The wavelength of the excitation light corresponding to the strongest excitation peak is 395 nm, which lies in the ultraviolet-light range.…”

Section: Photoluminescence Spectrum Analysismentioning

confidence: 98%