Effect of Eu2O3 doping on the crystallization behavior of BaO-Bi2O3-B2O3 glasses

Егорышева, А. В.; Володин, В. В.; Berezovskaya, I. V.; Zubar, E. V.; Скориков, В. М.; Milenov, T. I.; Rafailov, P. M.

doi:10.1134/s0020168512090051

Cited by 10 publications

(2 citation statements)

References 16 publications

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“…The photoluminescence properties of the M3Bi2(BO3)4:Eu 3+ (M = Sr, Ba) compounds were investigated in [12,13], and the crystal structure and photoluminescence of CaBi2B4O10:Eu 3+ phosphors were studied in [14]. Optical, structural, dielectric and photoluminescence properties of MO-Bi2O3-B2O3 (М = Ca, Sr, Ba) glasses were studied in [15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Novel Red-Emitting BaBi2B4O10:Eu3+ Phosphors: Synthesis, Crystal Structure and Luminescence

et al. 2023

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The novel red-emitting BaBi2-xEuxB4O10 (x = 0.05, 0.1, 0.2, 0.25, 0.3, 0.4, 0.5, 0.6) phosphors were obtained by a crystallization from a glass. Distribution of the Eu3+ ions over cation sites were refined for x = 0.1, 0.3 and 0.4 from single-crystal X-ray diffraction data. Emission and excitation spectra of the Eu3+-doped BaBi2B4O10 phosphors were investigated for the first time, where it was shown that characteristic lines are attributed to the intraconfigurational 4f-4f transitions. The optimal concentration for the BaBi2-xEuxB4O10 phosphors is x = 0.4, after which a luminescence intensity decreases. The CIE chromaticity coordinates for the BaBi2B4O10:Eu3+ (x = 0.4) phosphor (0.65, 0.35) are close to the NTSC standard values (0.67, 0.33) for commercial red phosphor. The obtained results show that the BaBi2B4O10:Eu3+ phosphors are promising candidates for solid state lighting application.

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Section: Introductionmentioning

confidence: 99%

Novel Red-Emitting BaBi2B4O10:Eu3+ Phosphors: Synthesis, Crystal Structure and Luminescence

et al. 2023

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“…These glasses have high values of density, refractive index, a broad area of transparency in the visible and infrared ranges. As it is known [5], borate glasses have wide glass formation regions and have a low synthesis temperature. However, they have a high mechanical and chemical stability characteristic of oxide glasses.…”

Section: Introductionmentioning

confidence: 99%

Red and Green Phosphors Glow on the Basis of Oxide Glass-Ceramics Doped with Eu<sup>3+</sup> and Tb<sup>3+</sup>

Tsyretarova

Kozhevnikova

Eremina

et al. 2015

KEM

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Glass-ceramics phosphors were obtained by the introduction of the crystalline phase NaMg3Sc (MoO4)5:Eu3+,Tb3+ in the glass composition 8SiO2-20B2O3-5Lu2O3-31Bi2O3-36ZnO. The properties were characterized by X-ray diffraction (XRD), photoluminescence (PL) and photoluminescent excitation spectra (PLE). The XRD patterns were indicated NaMg3Sc (MoO4)5:Eu3+,Tb3+ crystallize well with the novel structure type and were assigned to the triclinic phase (space group PĪ, Z = 6). Glass-ceramic phosphors are well-known and promising as solid electrolytes, laser, luminescent and other inorganic materials. Luminescent properties of the phosphors are performed at room temperature. The excitation spectra of Eu-doped phosphor present strong absorption at 300 nm and the sharp peaks in the 350-500 nm range. Under the 394 nm excitation, intense red emission peak at 616 nm corresponding to 5D0→7F2 transition of Eu3+ is observed in the emission spectrum. The luminescence property indicates that the local symmetry of Eu3+ ion has no inversion center. The excitation spectra of Tb-doped phosphor by monitoring wavelength at 546 nm shows the intense broad band from 260 to 420 nm and the line at 234 nm, which is mainly attributed to charge-transfer band transition in MoO42- group, indicating the existence of energy transfer from MoO42- to Tb3+ in the Tb3+:glass-ceramic. The measured emission spectrum of Tb-doped phosphor has intense green emission at 546 nm corresponding to 5D4→7F5 transition of Tb3+, with λex=368 nm. The as-prepared phosphors may find potential applications in the field such as color displays, light-emitting diodes (LEDs) and optoelectronic devices.

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Properties and Structure of Bismuth-Borate Glasses (Review)

Бобкова

2016

Glass Ceram

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Effect of Eu2O3 doping on the crystallization behavior of BaO-Bi2O3-B2O3 glasses

Cited by 10 publications

References 16 publications

Novel Red-Emitting BaBi2B4O10:Eu3+ Phosphors: Synthesis, Crystal Structure and Luminescence

Novel Red-Emitting BaBi2B4O10:Eu3+ Phosphors: Synthesis, Crystal Structure and Luminescence

Red and Green Phosphors Glow on the Basis of Oxide Glass-Ceramics Doped with Eu<sup>3+</sup> and Tb<sup>3+</sup>

Properties and Structure of Bismuth-Borate Glasses (Review)

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