Dy3+ ion as optical probe to study the luminescence behavior of Alkali lead bismuth borate glasses for w-LED application

Divina, R.; Teresa, P. Evangelin; Marimuthu, K.

doi:10.1016/j.jallcom.2021.160845

Cited by 40 publications

(10 citation statements)

References 50 publications

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“…Recently, borate glasses have a great attention due to their desirable features including facile and low-cost preparation, greatly tunable properties, controllable composition, low melting-point, excellent glass formation, and transparency. The unique and outstanding properties of borate glasses endow them beneficial importance in many applications such as radiation shielding [1], energy storage [2], optoelectronic device [3], and light emitting diode [4]. The benefits of incorporation of lithium oxide are reduction of the melting point and enhancement of ionic conduction.…”

Section: Introductionmentioning

confidence: 99%

Enhanced optical and electrical properties of narrow-bandgap cerium borate glasses and nanostructured glass-ceramics: influence of V₂O₅-incorporation

Ali

2023

Phys. Scr.

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Improvement of optical and electrical properties of borate glasses is a great demand for upgrading optoelectronic devices. Additionally, the transformation of borate glasses to nanostructured glass-ceramics endows them with outstanding beneficial properties to widen their application range. Herein, novel borate glass compositions are synthesized by the facile melt quenching method. The influences of V2O5-incorporation and nanocrystallization on the structural, optical, and electrical properties of the investigated cerium borate glasses are studied. The heat-treatment process promotes the precipitation of CeO2 and VCeO4 nanocrystals in the glass network. Linear and high dependence of the band gap of the as-prepared glasses on the V2O5 concentration is observed. A narrow band gap (about 1.6), which lies in the range of ideal bandgaps for two-junction photovoltaic cell applications, is achieved. Strong absorption in the visible and/or UV regions is attained for the studied samples, which is beneficial to shield laser emissions (up to 794 nm) and/or protect against the hazard of UV radiation. High DC conductivity (about 3 × 10-6 S/m) is approved for the glass sample containing V2O5 content of 10 mol%. The investigated glasses and nanostructured glass-ceramics are recommended as promising candidates for UV-protection sunglasses, laser safety, visible light irradiation photocatalyst, and next-generation semiconductors.

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Section: Introductionmentioning

confidence: 99%

Enhanced optical and electrical properties of narrow-bandgap cerium borate glasses and nanostructured glass-ceramics: influence of V₂O₅-incorporation

Ali

2023

Phys. Scr.

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“…[17][18][19][20] Although the characteristic emission of Dy 3+ is valid, it can only be excited by the low-energy ultraviolet region (UVA), and the excitation source (UVA) may produce trailing in the visible region, which can affect the true performance of Dy 3+ . 21,22 F I G U R E 1 Schematic diagram of potential applications for Sb 3+ -Ce 3+ -Dy 3+ tri-doped medium-temperature molten silicate glass phosphors…”

Section: Introductionmentioning

confidence: 99%

“…Among rare‐earth ions, Dy 3+ with strong emission in the yellow and blue fluorescence regions due to 4 F 9/2 → 6 H 13/2 and 4 F 9/2 → 6 H 15/2 transitions emits a warm yellow–white light that has been extensively studied 17–20 . Although the characteristic emission of Dy 3+ is valid, it can only be excited by the low‐energy ultraviolet region (UVA), and the excitation source (UVA) may produce trailing in the visible region, which can affect the true performance of Dy 3+ 21,22 . The introduction of sensitizers to break the excitation confinement of Dy 3+ is an ideal method.…”

Section: Introductionmentioning

confidence: 99%

Excitation expansion in the high‐energy UV region for Dy³⁺‐doped medium‐temperature molten silicate glass phosphors

Tian

et al. 2022

J Am Ceram Soc.

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Medium‐temperature molten Dy3+‐doped silicate (LNKBAS) glass phosphors can be excited efficiently in the low‐energy ultraviolet region (UVA). To this end, the addition of sensitizers Sb3+ and Ce3+ expands the validly excitable wavelength of Dy3+ from 348 to 248 nm. Fluorescence spectra demonstrate the superposition effect of the sensitization in the high‐energy ultraviolet region (UVC), and the multiplicative effect of sensitization in the UVA and medium‐energy ultraviolet region (UVB) for Sb3+–Ce3+–Dy3+ tri‐doped LNKBAS glass phosphors. The chromaticity coordinate of LNKBASCe0.04Sb0.1Dy1.0 is (0.2725, 0.3031) at 248 nm excitation, and the sensitization coefficient of LNKBASCe0.04Sb0.2Dy1.0 reaches at 19.85 under 309 nm excitation. Static fluorescence photographs and dynamic fluorescence video reveal the excitation expansion and the multiplicative effect of sensitization to Dy3+ by adding sensitizers at a macroscopic level. In general, the ideal rare‐earth energy conversion in medium‐temperature molten silicate glass phosphors offers promising prospects for saving energy and manufacturing high‐quality optoelectronic devices.

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“…Over the past years, the progress in the capacity of modern optoelectronic and photonic technologies has contributed to the increasing interest in luminescence materials, particularly glasses, glass ceramics, and ceramics [1][2][3][4][5][6]. Inorganic systems doped with trivalent lanthanide (Ln 3+ ) ions have been paid attention due to their spectroscopic properties in visible and near-infrared spectral range and possible applications as luminescent solar converters [7], solid-state lighting [8], generators of white light [9], optical thermometers [10,11], laser and broadband fiber amplifiers [12,13]. One of the more interesting uses of glasses doped with Ln 3+ ions is the production of emitters for RGB technology [14].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic Properties of Pr3+, Tm3+, and Ho3+ in Germanate-Based Glass Systems Modified by TiO2

et al. 2022

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In this paper, the effect of the GeO2:TiO2 molar ratio in glass composition on the spectroscopic properties of germanate glasses was systematically investigated. The visible luminescence bands associated with characteristic 1D2 → 3H4 (red), 5S2, 5F4 → 5I8 (green), and 1D2 → 3F4 (blue) transitions of Pr3+, Ho3+, and Tm3+ ions in systems modified by TiO2 were well observed, respectively. It was found that the luminescence intensity of glasses containing Pr3+ and Ho3+ ions increases, whereas, for Tm3+-doped systems, luminescence quenching with increasing content of TiO2 was observed. Based on Commission Internationale de I’Eclairage (CIE) chromaticity coordinates (x, y) analysis, it was demonstrated that the value of chromaticity coordinates for all glasses depends on the GeO2:TiO2 molar ratio. The addition of TiO2 to system compositions doped with Tm3+ ions shifts the (x, y) to the center of the CIE diagram. However, chromaticity coordinates evaluated for glasses containing Pr3+ ions move to a purer red color. Our results confirm that the spectroscopic properties of the studied glasses strongly depend on TiO2 content. Moreover, it can be stated that germanate-based glass systems modified by TiO2 can be used for optoelectronics in RGB technology as red (Pr3+), green (Ho3+), and blue (Tm3+) emitters.

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Dy3+ ion as optical probe to study the luminescence behavior of Alkali lead bismuth borate glasses for w-LED application

Cited by 40 publications

References 50 publications

Enhanced optical and electrical properties of narrow-bandgap cerium borate glasses and nanostructured glass-ceramics: influence of V₂O₅-incorporation

Enhanced optical and electrical properties of narrow-bandgap cerium borate glasses and nanostructured glass-ceramics: influence of V₂O₅-incorporation

Excitation expansion in the high‐energy UV region for Dy³⁺‐doped medium‐temperature molten silicate glass phosphors

Spectroscopic Properties of Pr3+, Tm3+, and Ho3+ in Germanate-Based Glass Systems Modified by TiO2

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Dy3+ ion as optical probe to study the luminescence behavior of Alkali lead bismuth borate glasses for w-LED application

Cited by 40 publications

References 50 publications

Enhanced optical and electrical properties of narrow-bandgap cerium borate glasses and nanostructured glass-ceramics: influence of V2O5-incorporation

Enhanced optical and electrical properties of narrow-bandgap cerium borate glasses and nanostructured glass-ceramics: influence of V2O5-incorporation

Excitation expansion in the high‐energy UV region for Dy3+‐doped medium‐temperature molten silicate glass phosphors

Spectroscopic Properties of Pr3+, Tm3+, and Ho3+ in Germanate-Based Glass Systems Modified by TiO2

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Product

Resources

About

Enhanced optical and electrical properties of narrow-bandgap cerium borate glasses and nanostructured glass-ceramics: influence of V₂O₅-incorporation

Enhanced optical and electrical properties of narrow-bandgap cerium borate glasses and nanostructured glass-ceramics: influence of V₂O₅-incorporation

Excitation expansion in the high‐energy UV region for Dy³⁺‐doped medium‐temperature molten silicate glass phosphors