White light generation and energy transfer in Tm3+/Tb3+/Sm3+ -doped 60TeO2. 40ZnO glasses

Alves, R.T.; Trindade, C.M.; Silva, A.C.A.; Dantas, Noélio O.; Gouveia‐Neto, A. S.

doi:10.1016/j.jlumin.2020.117543

Cited by 15 publications

(5 citation statements)

References 18 publications

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“…Simultaneously, Sm 3+ ions can absorb this relaxed energy through an energy transfer (ET) mechanism, leading to red emissions. 68 In the presence of both Tm 3+ and Sm 3+ ions in the same structure, the previously described lifetime durations are shortened, as evident in Fig. 5(a) and (b), due to the ET transition between Tm 3+ and Sm 3+ ions.…”

Section: Pccp Papermentioning

confidence: 59%

Glass-based LED system for indoor horticulture: enhanced plant growth through Sm³⁺ and Tm³⁺ co-doped luminescent glasses

Ekim,

İlter,

Özan

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Pccp Papermentioning

confidence: 59%

Glass-based LED system for indoor horticulture: enhanced plant growth through Sm³⁺ and Tm³⁺ co-doped luminescent glasses

Ekim,

İlter,

Özan

et al. 2023

Phys. Chem. Chem. Phys.

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“…There exist three primary methods for generating green light, namely rare earth ion leap emission, semiconductor laser emission and frequency conversion. [1][2][3] The green light generated by rare-earth ion leap exhibits superior beam quality and higher brightness in comparison to the green light generated by alternative methods. Consequently, it is the optimal selection for generating green light.…”

Section: Introductionmentioning

confidence: 99%

“…Green light is one of the most sensitive to the human eyes among the various colors of light and thus has been extensively researched in the medical and display fields. There exist three primary methods for generating green light, namely rare earth ion leap emission, semiconductor laser emission and frequency conversion 1–3 . The green light generated by rare‐earth ion leap exhibits superior beam quality and higher brightness in comparison to the green light generated by alternative methods.…”

Section: Introductionmentioning

confidence: 99%

Preparation, optical, and thermal stability of Tb³⁺‐doped glass ceramics containing Al₄Ti₂SiO₁₂

Wang

Zhang

Zhao

et al. 2023

Int J Applied Ceramic Tech

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The Tb3+‐doped transparent glass ceramics containing Al4Ti2SiO12 crystal are synthesized by the melt‐solid‐crystallization method. The optimal heat treatment conditions for the glass ceramic samples are determined to be 750°C, 1.5 h based on differential scanning calorimeter, X‐ray diffractometer, scanning electron microscope, and light transmittance curve. The luminescence properties of the glass ceramics samples are characterized by a fluorescence spectrometer. The emission spectrum revealed that the dominant emission is green attributed to Tb3+, the optimal doping concentration is 0.3%. And the thermal quenching activation energy of 0.3% Tb3+‐doped glass ceramics is 0.2554 eV, while the relative sensitivity is 1.50% K−1 at 298 K and the absolute sensitivity is 2.27×10−2 K−1 at 418 K through variable temperature fluorescence spectroscopy test and a series of calculations. These findings demonstrate the excellent stability and temperature sensitivity of glass ceramics, thereby highlighting their potential for use in green lighting and temperature sensing applications.

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“…This motivated us to search for a trivalent lanthanide emitting in the region of the electromagnetic spectrum where Pd 2+ ions absorb strongly, as this would represent favorable conditions for an energy transfer . In this context, Tm 3+ was considered an attractive candidate given its characteristic blue PL around 452 nm achievable under near-UV excitation. − Blue-emitting Tm 3+ -doped glasses have been considered for applications in lasing ,, and also white-light-emitting devices. , Energy transfer processes in glasses containing Tm 3+ ions and other metals as dopants such as Sb 3+ , Ag + , Ce 3+ , and other lanthanides , have been also the subject of attention mainly seeking to boost the blue PL of Tm 3+ . Nevertheless, the influence of Pd 2+ ions on the blue emission of Tm 3+ in glasses has not yet been reported to the best of the authors’ knowledge.…”

Section: Introductionmentioning

confidence: 99%

“…23−27 Blue-emitting Tm 3+ -doped glasses have been considered for applications in lasing 23,24,26 and also white-light-emitting devices. 28,29 Energy transfer processes in glasses containing Tm 3+ ions and other metals as dopants such as Sb 3+ , 25 Ag + , 27 Ce 3+ , 23 and other lanthanides 28,29 have been also the subject of attention mainly seeking to boost the blue PL of Tm 3+ . Nevertheless, the influence of Pd 2+ ions on the blue emission of Tm 3+ in glasses has not yet been reported to the best of the authors' knowledge.…”

Section: ■ Introductionmentioning

confidence: 99%

Tm³⁺ Ion Blue Emission Quenching by Pd²⁺ Ions in Barium Phosphate Glasses: Fundamental Analysis toward Sensing Applications

Jiménez

Ibarra

2022

J. Phys. Chem. B

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The quenching effect of Pd2+ ions on the blue emission from Tm3+ was investigated for the first time using barium phosphate glass as model matrix. Glasses containing fixed Tm2O3 at 0.5 mol % and PdO up to 0.3 mol % (added relative to P2O5) were prepared by melting and first characterized for basic structural properties by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and Raman spectroscopy. Thermal properties were then evaluated by differential scanning calorimetry (DSC). The focus was thereafter on evaluating the optical properties by absorption and photoluminescence (PL) spectroscopy with decay kinetics assessment. XRD confirmed the amorphous nature of the glasses synthesized. The vibrational spectroscopy assessment consistently exhibited the IR- and Raman-active bands characteristic of phosphate glasses, showing no significant variation with PdO codoping. The DSC analysis revealed all glasses possessed high thermal stability assessed by the differences (ΔT = T g – T x ≥ 154 °C) between glass transition temperatures (T g) and onset of crystallization (T x). A tendency of the T g values to increase with PdO contents was however exhibited. In addition, specific enthalpies of crystallization showed magnitudes decreasing with increasing PdO concentration, thus suggesting crystallization suppression by Pd2+. Concerning the optical properties, it was observed that codoping the glasses with PdO (0.1–0.3 mol %) led to the development of the visible Pd2+ d–d absorption band (peak ≈415–410 nm). In addition, drastic PL quenching of the Tm3+ blue emission around 452 nm (1D2 → 3F4 transition) was induced by Pd2+. Analyzing PL decay curves obtained by exciting Tm3+ ions at 359 nm while monitoring 452 nm emission revealed decreased 1D2 state lifetimes. Thus, a potential of Tm3+ for analytical sensing of Pd2+ in various matrices was suggested. Ultimately determining quenching constants from the PL data and based on the comparison of results from emission intensity and decay rates, likely Tm3+ → Pd2+ energy transfer processes underlying the PL quenching were proposed.

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White light generation and energy transfer in Tm3+/Tb3+/Sm3+ -doped 60TeO2. 40ZnO glasses

Cited by 15 publications

References 18 publications

Glass-based LED system for indoor horticulture: enhanced plant growth through Sm³⁺ and Tm³⁺ co-doped luminescent glasses

Glass-based LED system for indoor horticulture: enhanced plant growth through Sm³⁺ and Tm³⁺ co-doped luminescent glasses

Preparation, optical, and thermal stability of Tb³⁺‐doped glass ceramics containing Al₄Ti₂SiO₁₂

Tm³⁺ Ion Blue Emission Quenching by Pd²⁺ Ions in Barium Phosphate Glasses: Fundamental Analysis toward Sensing Applications

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White light generation and energy transfer in Tm3+/Tb3+/Sm3+ -doped 60TeO2. 40ZnO glasses

Cited by 15 publications

References 18 publications

Glass-based LED system for indoor horticulture: enhanced plant growth through Sm3+ and Tm3+ co-doped luminescent glasses

Glass-based LED system for indoor horticulture: enhanced plant growth through Sm3+ and Tm3+ co-doped luminescent glasses

Preparation, optical, and thermal stability of Tb3+‐doped glass ceramics containing Al4Ti2SiO12

Tm3+ Ion Blue Emission Quenching by Pd2+ Ions in Barium Phosphate Glasses: Fundamental Analysis toward Sensing Applications

Contact Info

Product

Resources

About

Glass-based LED system for indoor horticulture: enhanced plant growth through Sm³⁺ and Tm³⁺ co-doped luminescent glasses

Glass-based LED system for indoor horticulture: enhanced plant growth through Sm³⁺ and Tm³⁺ co-doped luminescent glasses

Preparation, optical, and thermal stability of Tb³⁺‐doped glass ceramics containing Al₄Ti₂SiO₁₂

Tm³⁺ Ion Blue Emission Quenching by Pd²⁺ Ions in Barium Phosphate Glasses: Fundamental Analysis toward Sensing Applications