Effective sensitization of Eu3+ ions on Eu3+/Nd3+ co-doped multicomponent borosilicate glasses for visible and NIR luminescence applications

Jose, Adon; Krishnapriya, T.; Jose, Twinkle Anna; Joseph, Cyriac; Unnikrishnan, N.V.; Biju, P.R.

doi:10.1016/j.ceramint.2020.11.022

Cited by 37 publications

(7 citation statements)

References 28 publications

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“…To estimate the outcome on colour fluorescence emission of Er 3+ /Dy 3+ /Sm 3+ triply doped with multicomponent borosilicate glass, Commission Internationale de L'Éclairage (CIE) chromaticity co‐ordinates (x, y) were evaluated from the photoluminescence spectra [ 27–29 ] and are displayed in Figure 17. It was observed that the calculated colour co‐ordinates significantly depended on the excitation wavelengths and concentration of Er 3+ ions.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 20(a) gives the excitation of the as‐prepared glass and the blank and Figure 20(b) depicts the emission of the same in which photons were collected by an integrative sphere with a full solid angle. [ 29,33,34 ] Experimental quantum efficiencies of the samples were obtained to be 56, 54, 55, 57, and 56% for DSE01, DSE25, DSE50, DSE75, and DSE100 glass respectively. The better quantum efficiency of the prepared glass suggested its suitability in optoelectronic applications.…”

Section: Resultsmentioning

confidence: 99%

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Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

et al. 2021

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A series of Dy3+/Sm3+/Er3+ triply doped multicomponent borosilicate glasses (DSE) was synthesized using varying Er3+ ions concentrations through a conventional melt quenching technique. The influence of triple doping on the optical characteristics of the prepared glass was evaluated to estimate the possibility of achieving white light emission through optical absorption, photoluminescence excitation (PLE), and emission (PL) measurements. Based on the PLE and PL spectral profiles, the presence of energy transfer processes between Dy3+, Sm3+, and Er3+ was confirmed. Furthermore, for Dy3+/Sm3+/Er3+ triply doped glass, an enhancement in Er3+ green luminescence and a noticeable decrease in Dy3+ and Sm3+ emissions were detected with the increase in Er3+concentration. The nature of energy transfer in DSE glass was investigated through Dexter's energy transfer mechanisms and the obtained result suggested that a dipole–dipole interaction was responsible for the dominant Sm3+ to Dy3+ and Dy3+ to Er3+ energy transfer processes. The precise characteristic colours that emanated from the as‐prepared samples were evaluated using Commission Internationale de l'Éclairage co‐ordinates and correlated colour temperature values and suggested its suitability for white light emission. The quantum efficiency of the prepared glass was determined experimentally. The aforementioned results recommend that the Dy3+/Sm3+/Er3+ triply doped multicomponent borosilicate glass irradiated with ultraviolet light sources might be useful for the generation of cool/warm white light‐emitting applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

et al. 2021

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“…It is also possible to obtain energy transfer between Nd 3+ and Yb 3+ ions. Due to the energy transfers occurring between Eu 3+ and Nd 3+ and Nd 3+ and Yb 3+ there is the possibility of receiving luminescence bands in the VIS and NIR ranges [ 50 , 56 , 57 , 58 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Excitation Energy Transfer in LaPO4 Nanophosphors Co-Doped with Eu3+/Nd3+ and Eu3+/Nd3+/Yb3+ Ions

et al. 2023

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Nanophosphors are widely used, especially in biological applications in the first and second biological windows. Currently, nanophosphors doped with lanthanide ions (Ln3+) are attracting much attention. However, doping the matrix with lanthanide ions is associated with a narrow luminescence bandwidth. This paper describes the structural and luminescence properties of co-doped LaPO4 nanophosphors, fabricated by the co-precipitation method. X-ray structural analysis, scanning electron microscope measurements with EDS analysis, and luminescence measurements (excitation 395 nm) of LaPO4:Eu3+/Nd3+ and LaPO4:Eu3+/Nd3+/Yb3+ nanophosphors were made and energy transfer between rare-earth ions was investigated. Tests performed confirmed the crystal structure of the produced phosphors and deposition of rare-earth ions in the structure of LaPO4 nanocrystals. In the range of the first biological window (650–950 nm), strong luminescence bands at the wavelengths of 687 nm and 698 nm (5D0 → 7F4:Eu3+) and 867 nm, 873 nm, 889 nm, 896 nm, and 907 nm (4F3/2 → 4I9/2:Nd3+) were observed. At 980 nm, 991 nm, 1033 nm (2F5/2 → 2F7/2:Yb3+) and 1048 nm, 1060 nm, 1073 nm, and 1080 nm (4F3/2 → 4I9/2:Nd3+), strong bands of luminescence were visible in the 950 nm–1100 nm range, demonstrating that energy transfer took place.

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“…Selection of suitable glassy matrix is very much relevant on this context [9]. Therefore we selected the multicomponent borosilicate glassy matrix as the host material due to its salient traits [10,11]. Among the various RE 3+ ions, integration of Dysprosium with glassy systems has received much importance for white light generation and is mainly attributable to the presence of two dominant luminescent bands lies in the blue and yellow region of the electromagnetic spectrum [4,12].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic investigation on the photoluminescent traits of Dy³⁺ activated multicomponent borosilicate glasses for W-LED applications

Jose

Krishnapriya

George³

et al. 2022

J. Phys.: Conf. Ser.

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The spectroscopic exploration of Dy3+ activated multicomponent borosilicate (DBS) glasses have been performed via optical absorption, fluorescence measurements, CIE colorimetry analysis and CCT values to investigate their role in the advancement of lighting sector. Oscillator strength values evaluated from the absorbance spectrum were utilized to determine phenomenological Judd-Ofelt (JO) parameters through least square fitting procedure. The fluorescence spectra of DBS glasses under the irradiation of 348 nm epitomize three emission bands which fall in yellow, blue and red region. Various radiative characteristics of the synthesised glass were evaluated by using JO intensity parameters. The color characteristics of DBS glasses were also investigated and the estimated features recommend synthesised glasses for diverse lighting applications.

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Effective sensitization of Eu3+ ions on Eu3+/Nd3+ co-doped multicomponent borosilicate glasses for visible and NIR luminescence applications

Cited by 37 publications

References 28 publications

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

Analysis of Excitation Energy Transfer in LaPO4 Nanophosphors Co-Doped with Eu3+/Nd3+ and Eu3+/Nd3+/Yb3+ Ions

Spectroscopic investigation on the photoluminescent traits of Dy³⁺ activated multicomponent borosilicate glasses for W-LED applications

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Effective sensitization of Eu3+ ions on Eu3+/Nd3+ co-doped multicomponent borosilicate glasses for visible and NIR luminescence applications

Cited by 37 publications

References 28 publications

Energy transfer analysis and realization of cool to warm white light in Dy3+/Sm3+/Er3+ triply doped multicomponent borosilicate glass for white light generation

Energy transfer analysis and realization of cool to warm white light in Dy3+/Sm3+/Er3+ triply doped multicomponent borosilicate glass for white light generation

Analysis of Excitation Energy Transfer in LaPO4 Nanophosphors Co-Doped with Eu3+/Nd3+ and Eu3+/Nd3+/Yb3+ Ions

Spectroscopic investigation on the photoluminescent traits of Dy3+ activated multicomponent borosilicate glasses for W-LED applications

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Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

Energy transfer analysis and realization of cool to warm white light in Dy³⁺/Sm³⁺/Er³⁺ triply doped multicomponent borosilicate glass for white light generation

Spectroscopic investigation on the photoluminescent traits of Dy³⁺ activated multicomponent borosilicate glasses for W-LED applications