Development of bismuth borosilicate glass doped with Eu 3+ for reddish orange emission materials application

Rakpanich, Suwat; Wantana, N.; Kaewkhao, J.

doi:10.1016/j.matpr.2017.06.143

Cited by 10 publications

(5 citation statements)

References 16 publications

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“…The other reasons for the popularity of europium ions in the field of photonics are their relevant emission properties resulting from 4f →4f transitions, whose positions are practically independent of ligands [30]. Therefore, the Eu 3+ ions play an important role in the luminescence field, and their strong and narrow orange-red emission have been widely used in phosphors and display devices [31][32][33]. Moreover, due to its relatively simple energy level structure, the efficient excitation of europium is achieved by radiation from the UV spectral range (300-400 nm).…”

Section: Introductionmentioning

confidence: 99%

Luminescent Studies on Germanate Glasses Doped with Europium Ions for Photonic Applications

et al. 2020

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Glass and ceramic materials doped with rare earth (RE) ions have gained wide interest in photonics as active materials for lasers, optical amplifiers, and luminescent sensors. The emission properties of RE-doped glasses depend on their chemical composition, but they can also be tailored by modifying the surrounding active ions. Typically, this is achieved through heat treatment (including continuous-wave and pulsed lasers) after establishing the ordering mechanisms in the particular glass–RE system. Within the known systems, silicate glasses predominate, while much less work relates to materials with lower energy phonons, which allow more efficient radiation sources to be constructed for photonic applications. In the present work, the luminescent and structural properties of germanate glasses modified with phosphate oxide doped with Eu3+ ions were investigated. Europium dopant was used as a “spectroscopic probe” in order to analyze the luminescence spectra, which characterizes the changes in the local site symmetries of Eu3+ ions. Based on the spectroscopic results, a strong influence of P2O5 content was observed on the excitation and luminescence spectra. The luminescence study of the most intense 5D0→7F2 (electric dipole) transition revealed that the increase in the P2O5 content leads to the linewidth reduction (from 15 nm to 10 nm) and the blue shift (~2 nm) of the emission peak. According to the crystal field theory, the introduction of P2O5 into the glass structure changes the splitting number of sublevels of the 5D0→7F1 (magnetic dipole) transition, confirming the higher polymerization of fabricated glass. The slightly different local environment of Eu3+ centers the results in a number of sites and causes inhomogeneous broadening of spectral lines. It was found that the local asymmetry ratio estimated by the relation of (5D0→7F2)/(5D0→7F1) transitions also confirms greater changes in local symmetry around Eu3+ ions. Our results indicate that modification of germanate glass by P2O5 allows control of their structural properties in order to functionalize the emissions for application as luminescent light sources and sensors.

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Section: Introductionmentioning

confidence: 99%

Luminescent Studies on Germanate Glasses Doped with Europium Ions for Photonic Applications

et al. 2020

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“…5a), the peaks are situated at 534, 552, 589, 608, 616, 650 and 698 nm. These maxima correspond to the following transitions: 5 D1→ 7 F1, 5 D0→ 7 F2, 5 D0→ 7 F0, 5 D0→ 7 F1, 5 D0→ 7 F2, 5 D0→ 7 F3, 5 D0→ 7 F4 [5,6,58].…”

Section: Photoluminescencementioning

confidence: 99%

“…Varying Eu2O3 concentration from 0 to 5 mol. %, the emission spectra revealed that Eu 3+ -doped glasses present the strongest emission at 613 nm ( 5 D0 → 7 F2) wavelength when excited with 465 nm, thus making these glasses promising materials for reddish orange emission devices [5]. Luminescence emissions of 1 mol.…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of the structural and optical properties of rare-earth-doped phosphate glasses for temperature sensing applications

Elisa

Iordache

et al. 2021

Journal of Non-Crystalline Solids

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“…Glasses accommodating rare-earth ions have been studied for years as luminescent materials in solid-state lasers, photonics, and opto-electronic devices like optical amplifiers, multicolor displays and detectors. Among them, glasses containing trivalent europium ion have been the subject of a great deal of interest due to its intense red emission [ 1 , 2 , 3 , 4 , 5 ]. Currently, heavy emphasis has been given to the discovery of new glass compositions for exploitation as Eu 3+ -doped luminescent hosts, as the optical properties of the active rare-earth ions in glasses strongly depend on the chemical composition of the glass matrix [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Structure and Luminescent Properties of Niobium-Modified ZnO-B2O3:Eu3+ Glass

Iordanova,

Milanova,

Yordanova

et al. 2024

Materials

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The effect of the addition of Nb2O5 (up to 5 mol%) on the structure and luminescent properties of ZnO-B2O3 glass doped with 0.5 mol% (1.32 × 1022) Eu2O3 was investigated by applying infrared (IR), Raman and photoluminescence (PL) spectroscopy. Through differential thermal analysis and density measurements, various physical properties such as molar volume, oxygen packing density and glass transition temperature were determined. IR and Raman spectra revealed that niobium ions enter into the base zinc borate glass structure as NbO4 tetrahedra and NbO6 octahedra. A strong red emission from the 5D0 level of Eu3+ ions was registered under near UV (392 nm) excitation using the 7F0 → 5L6 transition of Eu3+. The integrated fluorescence intensity ratio R (5D0 → 7F2/5D0 → 7F1) was calculated to estimate the degree of asymmetry around the active ion, suggesting a location of Eu3+ in non-centrosymmetric sites. The higher Eu3+ luminescence emission observed in zinc borate glasses containing 1–5 mol% Nb2O5 compared to the Nb2O5-free zinc borate glass evidences that Nb2O5 is an appropriate component for modifying the host glass structure and improving the emission intensity.

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Development of bismuth borosilicate glass doped with Eu 3+ for reddish orange emission materials application

Cited by 10 publications

References 16 publications

Luminescent Studies on Germanate Glasses Doped with Europium Ions for Photonic Applications

Luminescent Studies on Germanate Glasses Doped with Europium Ions for Photonic Applications

Peculiarities of the structural and optical properties of rare-earth-doped phosphate glasses for temperature sensing applications

Structure and Luminescent Properties of Niobium-Modified ZnO-B2O3:Eu3+ Glass

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