Structural and luminescence behaviour of Er3+ doped telluro-fluoroborate glasses

Karthikeyan, Perumal; Suthanthirakumar, P.; Vijayakumar, R.; Marimuthu, K.

doi:10.1016/j.molstruc.2014.12.003

Cited by 27 publications

(7 citation statements)

References 48 publications

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“…With the help of F-L formula [39], stimulated emission cross-section for the 4 S 3/2 → 4 I 15/2 transition was determined and the values were found to be 45, 56, 63, 68, 53 and 36 × 10 −22 cm 2 corresponding to the LZB0.01E, LZB0.05E, LZB0.1E, LZB0.5E, LZB1.0E and LZB2.0E glasses respectively. These values are comparatively higher than the reported glasses [25,[40][41][42][43] and are presented in Table 8. Since higher stimulated emission crosssection has low threshold and high gain, these glasses were proven to be better glasses for lasing action and among the prepared glasses, 0.5 mol% Er 3+ doped glass is a better choice for green lasing action with higher stimulated emission cross-section value.…”

Section: Luminescence Under 379 Nm Excitationcontrasting

confidence: 56%

Investigations on structural and luminescence behavior of Er3+ doped Lithium Zinc borate glasses for lasers and optical amplifier applications

Annapoorani

Basavapoornima

Murthy

et al. 2016

Journal of Non-Crystalline Solids

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Section: Luminescence Under 379 Nm Excitationcontrasting

confidence: 56%

Investigations on structural and luminescence behavior of Er3+ doped Lithium Zinc borate glasses for lasers and optical amplifier applications

Annapoorani

Basavapoornima

Murthy

et al. 2016

Journal of Non-Crystalline Solids

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“…In comparison with other matrix materials, CsPb 1−x Er x Br 3 −ZBLAN perovskite glass also shows excellent performance. 28,29 This indicates that CsPb 1−x Er x Br 3 −ZBLAN perovskite glass has better luminescence properties in the infrared region than other materials. In addition, the radiation transition probability A (s −1 ) of each energy level, the fluorescence branch ratio β (%), and the fluorescence lifetime τ (ms) are given in Table 2, longer energy level lifetime brings excellent conditions for radiation transition and luminescence.…”

Section: Resultsmentioning

confidence: 97%

Mid-Infrared Luminescence of the High Stability Perovskite CsPb_1–xEr_xBr₃-ZrF₄-BaF₂-LaF₃-AlF₃-NaF Fluoride Glass

Yin

Zhang

et al. 2021

ACS Appl. Mater. Interfaces

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Perovskites have been studied because of their adjustable wavelength range, high color purity, and wide color gamut. However, they still face some problems such as poor stability and insufficient infrared luminescence. The perovskite glass can improve the stability and luminescence properties of the perovskite. In this paper, a highly stable CsPb 1−x Er x Br 3 −ZBLAN fluoride glass with mid-infrared and visible light emission was prepared. The ZBLAN fluoride glass has good inertness, which can improve the stability of the CsPb 1−x Er x Br 3 perovskite. The CsPb 1−x Er x Br 3 −ZBLAN fluoride glass can prevent the perovskite from being destroyed by water, oxygen, and laser. The Er 3+ replaces Pb 2+ to bond with Br − to become the luminescent center of the CsPb 1−x Er x Br 3 −ZBLAN perovskite glass, which extends the luminescence to the mid-infrared region. In addition, its luminescent intensity is significantly higher than those of the ZBLAN− Er glass and CsPb 1−x Er x Br 3 perovskite. After irradiation with a 365 nm UV lamp for 13 h, the luminescence intensity of the CsPb 1−x Er x Br 3 −ZBLAN perovskite glass decreases only by 10%. The EDS spectrum shows that the elements of the CsPb 1−x Er x Br 3 perovskite are uniformly distributed in the glass matrix. The X-ray diffraction spectrum shows that the sample has both the CsPb 1−x Er x Br 3 perovskite phase and the glass phase. This indicates that CsPb 1−x Er x Br 3 is well crystallized in the ZBLAN glass matrix. The three parameters calculated by the Judd−Ofelt theory show that the CsPb 1−x Er x Br 3 perovskite can increase the covalency and asymmetry around the rare earth ion Er 3+ . The transmission electron microscope can clearly see the morphological structure of the CsPb 1−x Er x Br 3 perovskite in the ZBLAN glass matrix. The infrared Fourier transform spectroscopy shows that the sample has lower phonon energy. This proves that the sample has good infrared luminescence characteristics. Finally, the visible and infrared light sources were prepared. Under the irradiation of the 365 nm ultraviolet lamp and 980 nm laser, the perovskite glass produces green light and infrared emission. KEYWORDS: CsPb 1−x Er x Br 3 perovskite, fluoride glass, stability, infrared fluorescence, rare earth ion

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“…The band at 971 cm −1 is ascribed to B–O bond stretching of [BO 4 ] units . The band at 1053 cm −1 is due to the symmetric stretching of P‐O‐B link between the stable tetrahedral [BO 4 ] and [PO 4 ] units . The band at 1169 cm −1 is due to the B‐O‐B bridge between [BO 3 ] and [BO 4 ] units .…”

Section: Resultsmentioning

confidence: 99%

“…[28][29][30] In general, the presence of different structural groups in glass could be established from the infrared spectrum that follows a similar pattern and contains many peaks specifying local structure. 31 The infrared spectra of the PBSK glasses show the presence of seven broad bands at a wavenumber range of 400-1600 cm −1 , as shown in Figure 2. The band at 486 cm −1 is attributed to P-O-P bending vibrations in [PO 4 ] network.…”

Section: Measurements and Characterizationmentioning

confidence: 97%

“…32 The band at 1053 cm −1 is due to the symmetric stretching of P-O-B link between the stable tetrahedral [BO 4 ] and [PO 4 ] units. 31,33 The band at 1169 cm −1 is due to the B-O-B bridge between [BO 3 ] and [BO 4 ] units. 34 The band at 1375 cm −1 is attributed to stretching vibration of B-O in [BO 3 ] units, 35 and its intensity decreases with the addition of Tm 3+ /Dy 3+ , meaning that triangular [BO 3 ] units could be converted to tetrahedral [BO 4 ] units.…”

Section: Measurements and Characterizationmentioning

confidence: 99%

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Fabrication, tunable fluorescence emission and energy transfer of Tm³⁺‐Dy³⁺ co‐activated P₂O₅–B₂O₃–SrO–K₂O glasses

Cui

Chen

et al. 2019

J Am Ceram Soc

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A growing demand for white light‐emitting diodes (W‐LEDs) gives rise to continuous exploration of functional fluorescence glasses. In this paper, Tm3+/Dy3+ single‐ and co‐doped glasses with composition (in mol%) of 30P2O5–10B2O3–23SrO–37K2O were synthesized using the melt‐quenching method in air. The physical properties, glass structure, luminescence characteristics and energy transfer mechanism of the glasses were systematically studied. As glass network modifiers, Tm3+ and Dy3+ ions can densify the glass structure. Excitation wavelength and doping concentration of Tm3+/Dy3+ ions have a direct impact on the emission intensities of blue and orange light as well as the color coordinate of the as‐prepared glasses. A white light very close to standard white light can be obtained under 354 nm excitation when the content of Tm3+ and Dy3+ is 0.2 mol% and 1.0 mol%, respectively. The results of the emission spectra and decay curves reveal the existence of energy transfer from Tm3+ to Dy3+. The analytic results based on the Inokuti‐Hirayama model indicate that the electrical dipole‐dipole interaction may be the main mechanism of energy transfer. Moreover, Tm3+/Dy3+ co‐activated glass phosphor has good thermal stability and chrominance stability and it is a promising candidate for white LEDs and display device.

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Structural and luminescence behaviour of Er3+ doped telluro-fluoroborate glasses

Cited by 27 publications

References 48 publications

Investigations on structural and luminescence behavior of Er3+ doped Lithium Zinc borate glasses for lasers and optical amplifier applications

Investigations on structural and luminescence behavior of Er3+ doped Lithium Zinc borate glasses for lasers and optical amplifier applications

Mid-Infrared Luminescence of the High Stability Perovskite CsPb_1–xEr_xBr₃-ZrF₄-BaF₂-LaF₃-AlF₃-NaF Fluoride Glass

Fabrication, tunable fluorescence emission and energy transfer of Tm³⁺‐Dy³⁺ co‐activated P₂O₅–B₂O₃–SrO–K₂O glasses

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Structural and luminescence behaviour of Er3+ doped telluro-fluoroborate glasses

Cited by 27 publications

References 48 publications

Investigations on structural and luminescence behavior of Er3+ doped Lithium Zinc borate glasses for lasers and optical amplifier applications

Investigations on structural and luminescence behavior of Er3+ doped Lithium Zinc borate glasses for lasers and optical amplifier applications

Mid-Infrared Luminescence of the High Stability Perovskite CsPb1–xErxBr3-ZrF4-BaF2-LaF3-AlF3-NaF Fluoride Glass

Fabrication, tunable fluorescence emission and energy transfer of Tm3+‐Dy3+ co‐activated P2O5–B2O3–SrO–K2O glasses

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Product

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Mid-Infrared Luminescence of the High Stability Perovskite CsPb_1–xEr_xBr₃-ZrF₄-BaF₂-LaF₃-AlF₃-NaF Fluoride Glass

Fabrication, tunable fluorescence emission and energy transfer of Tm³⁺‐Dy³⁺ co‐activated P₂O₅–B₂O₃–SrO–K₂O glasses