Energy transfer and control of color luminescence in Dy3+/Tb3+ co-doped transparent oxyfluorosilicate glass ceramics containing LiYF4 nanocrystals

Chen, Chao; Gu, Zhaofeng; Li, Qinling; Zhang, Yuepin

doi:10.1016/j.jeurceramsoc.2020.04.047

Cited by 27 publications

(4 citation statements)

References 25 publications

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“…The fluorescence lifetime decay of PG and GC750 doped with 4.0Yb 3+ /0.1Ho 3+ /0.1Tm 3+ (mol%) was monitored at 646 nm (Figure 6A). The effective lifetime can be expressed in the following formulae 21,52,53 :

\begin{equation}{I_{\left( t \right)}} = {A_1}\;\;\exp \left( { - \frac{t}{{{\tau _1}}}} \right) + {A_2}{\rm{exp}}\left( { - \frac{t}{{{\tau _2}}}} \right)\end{equation}

\begin{equation}\tau \; = \frac{{\left( {{A_{1\;}}\tau _1^2 + {A_{2\;}}\tau _{2}^{2}} \right)}}{{{A_{1\;}}{\tau _1} + {A_{2\;}}{\tau _2}}}\;\;\end{equation}

where I ( t ) is the luminous intensity at time t , τ is the average decline life, τ 1 and τ 2 are the fast component and slow components, and their respective weighting parameters are A 1 and A 2 . Compared with PG, the UC emission life of GC750 is greatly prolonged, which further proves the doping of RE ions in NaSr 2 Nb 5 O 15 nanocrystals 54,55 …”

Section: Resultsmentioning

confidence: 99%

“…The fluorescence lifetime decay of PG and GC750 doped with 4.0Yb 3+ /0.1Ho 3+ /0.1Tm 3+ (mol%) was monitored at 6A). The effective lifetime can be expressed in the following formulae 21,52,53 :…”

Section: Optical Propertiesmentioning

confidence: 99%

“…With the increase of heat treatment holding time or temperature, the number and size of crystalline crystals in the glass matrix will increase, and the transparency of glass ceramics will gradually decrease. [19][20][21] Therefore, by controlling crystallization process of heat treatment, that is, controlling the degree of crystal precipitation of glass, it is easy to obtain high transparency of GCs. Glass has high transparency, but its dielectric constant is low.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

NaSr₂Nb₅O₁₅:Yb³⁺, Ho³⁺, Tm³⁺ transparent glass ceramics: Up‐conversion optical thermometry and energy storage property

et al. 2022

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Rare earth tri‐doped precursor glasses (PGs) were prepared by traditional high‐temperature melting method, and NaSr2Nb5O15 transparent glass–ceramic (GC) was obtained by subsequent heat treatment. Results exhibit that the up‐conversion emission intensity of GC is greatly enhanced compared to PG. Benefiting from the multiple emission bands from Ho3+ and Tm3+ and their different temperature dependence, multi‐ratio optical temperature measurement is realized. The ultimate relative sensitivity (Sr‐max) can reach 2.00% K−1 between 298 and 598 K. It provides a possibility for self‐reference temperature measurement. Furthermore, under the actual charging and discharge conditions, the GC heated at 750°C has great energy density (Wd = 1.15 J/cm3@600 kV/cm) and high‐power density (Pd = 290.4 MW/cm3@600 kV/cm) with ultrafast discharge time (<15.8 ns). The previous results indicate that the obtained GC with good multifunctional properties is expected to be applied in the field of photoelectric conversion.

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\begin{equation}{I_{\left( t \right)}} = {A_1}\;\;\exp \left( { - \frac{t}{{{\tau _1}}}} \right) + {A_2}{\rm{exp}}\left( { - \frac{t}{{{\tau _2}}}} \right)\end{equation}

\begin{equation}\tau \; = \frac{{\left( {{A_{1\;}}\tau _1^2 + {A_{2\;}}\tau _{2}^{2}} \right)}}{{{A_{1\;}}{\tau _1} + {A_{2\;}}{\tau _2}}}\;\;\end{equation}

Section: Resultsmentioning

confidence: 99%

Section: Optical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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NaSr₂Nb₅O₁₅:Yb³⁺, Ho³⁺, Tm³⁺ transparent glass ceramics: Up‐conversion optical thermometry and energy storage property

et al. 2022

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“…A 1 and A 2 are the correlative parameters obtained by fitting. According to the average time obtained by calculation, the efficiency of ET1 and ET2 can be ascertained by the formula [24,25] η…”

Section: Decay Curves and Ciementioning

confidence: 99%

Luminescent characteristics of Tm³⁺/Tb³⁺/Eu³⁺ tri-doped Na₅Y₉F₃₂ single crystals for white emission with high thermal stability

Fang¹,

Xiong²,

Zhao³

et al. 2022

Chinese Phys. B

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Using an improved Bridgman method, 0.3 mol%Tm3+/0.6 mol%Tb3+/y mol%Eu3+(y=0, 0.4, 0.6, 0.8) doped Na5Y9F32 single crystals were prepared. The X-ray diffractions, excitation spectra, emission spectra and fluorescence decay curves were used to explore crystal structure and optical performance of the obtained samples. When excited by 362 nm light, the cool white emission was realized from Na5Y9F32 single crystal triply-doped 0.3 mol% Tm3+/0.6 mol% Tb3+/0.8 mol% Eu3+, in which the CIE coordinate was (0.2995, 0.3298) and the correlated color temperature (CCT) was 6586 K. The integrated normalized emission intensity of the tri-doped single crystal at 448 K can keep 62% of that 298 K. The internal quantum yield (QY) was calculated to be ~ 15.16% by integrating spheres. These results suggested that the single crystals tri-doped Tm3+, Tb3+ and Eu3+ions have a promising potential application for white light-emitting diodes (w-LEDs).

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Enabling Broadband Solar‐Blind UV Photodetection by a Rare‐Earth Doped Oxyfluoride Transparent Glass‐Ceramic

Jia,

Zhang,

Niu

et al. 2024

Advanced Science

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Oxyfluoride transparent glass‐ceramics (GC) are widely used as the matrix for rare‐earth (RE) ions due to their unique properties such as low phonon energy, high transmittance, and high solubility for RE ions. Tb3+ doped oxyfluoride glasses exhibit a large absorption cross section for ultraviolet (UV) excitation, high stability, high photoluminescence quantum efficiency, and sensitive spectral conversion characteristics, making them promising candidate materials for use as the spectral converter in UV photodetectors. Herein, a Tb3+ doped oxyfluoride GC is developed by using the melt‐quenching method, and the microstructure and optical properties of the GC sample are carefully investigated. By combining with a Si‐based photo‐resistor,a solar‐blind UV detector is fabricated, which exhibits a significant photoelectric response with a broad detection range from 188 to 400 nm. The results indicate that the designed UV photodetector is of great significance for the development of solar‐blind UV detectors.

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Energy transfer and control of color luminescence in Dy3+/Tb3+ co-doped transparent oxyfluorosilicate glass ceramics containing LiYF4 nanocrystals

Cited by 27 publications

References 25 publications

NaSr₂Nb₅O₁₅:Yb³⁺, Ho³⁺, Tm³⁺ transparent glass ceramics: Up‐conversion optical thermometry and energy storage property

NaSr₂Nb₅O₁₅:Yb³⁺, Ho³⁺, Tm³⁺ transparent glass ceramics: Up‐conversion optical thermometry and energy storage property

Luminescent characteristics of Tm³⁺/Tb³⁺/Eu³⁺ tri-doped Na₅Y₉F₃₂ single crystals for white emission with high thermal stability

Enabling Broadband Solar‐Blind UV Photodetection by a Rare‐Earth Doped Oxyfluoride Transparent Glass‐Ceramic

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Energy transfer and control of color luminescence in Dy3+/Tb3+ co-doped transparent oxyfluorosilicate glass ceramics containing LiYF4 nanocrystals

Cited by 27 publications

References 25 publications

NaSr2Nb5O15:Yb3+, Ho3+, Tm3+ transparent glass ceramics: Up‐conversion optical thermometry and energy storage property

NaSr2Nb5O15:Yb3+, Ho3+, Tm3+ transparent glass ceramics: Up‐conversion optical thermometry and energy storage property

Luminescent characteristics of Tm3+/Tb3+/Eu3+ tri-doped Na5Y9F32 single crystals for white emission with high thermal stability

Enabling Broadband Solar‐Blind UV Photodetection by a Rare‐Earth Doped Oxyfluoride Transparent Glass‐Ceramic

Contact Info

Product

Resources

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NaSr₂Nb₅O₁₅:Yb³⁺, Ho³⁺, Tm³⁺ transparent glass ceramics: Up‐conversion optical thermometry and energy storage property

NaSr₂Nb₅O₁₅:Yb³⁺, Ho³⁺, Tm³⁺ transparent glass ceramics: Up‐conversion optical thermometry and energy storage property

Luminescent characteristics of Tm³⁺/Tb³⁺/Eu³⁺ tri-doped Na₅Y₉F₃₂ single crystals for white emission with high thermal stability