Wide‐range thermometry based on green up‐conversion luminescence of K3LuF6:Yb3+/Er3+ bulk oxyfluoride glass ceramics

Cao, Jiangkun; Hu, Fangfang; Chen, Liping; Guo, Hai; Duan, Chang‐Kui; Yin, Min

doi:10.1111/jace.14606

Cited by 84 publications

(30 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure A exhibits the decay curves of 1165 nm emission of Nx samples excited by 467 nm. The average fluorescence lifetime

normalτ

can be evaluated by the following equation,

τ = \int I false(t false) t d t / \int I false(t false) d t

where the

I (t)

represents the fluorescence intensity I at time t . The obtained lifetimes for 1165 nm of Nx samples (x = 0, 1, 2, 3, 4, 5, 6) are 473, 531, 529, 491, 481, 454, and 341 μs, which is consistent with that reported in other silicate glass systems .…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

New strategy to enhance the broadband near‐infrared emission of bismuth‐doped laser glasses

Cao

Wang

et al. 2018

J Am Ceram Soc

Self Cite

View full text Add to dashboard Cite

Bismuth‐doped glasses and fibers with broadband near‐infrared (NIR) emission have garnered much attention on account of their potential applications in new fiber lasers and broadband amplifiers. Yet the realization of high gain from Bi‐doped fibers and highly efficient NIR emission from Bi‐doped glasses are still a stubborn puzzle. The enhancement of Bi NIR emission is normally based on modifying the glass composition and topology, which will change the structure of the glass over a wide range and alter the thermal or mechanical properties of the glass simultaneously, making it more complicated for the designing and fabricating of Bi fibers with good performance. Here, we find that a trace addition of Si3N4 can efficiently enhance the Bi NIR emission without changing the glass structure significantly, right followed by spectral and structural analysis. 27Al NMR measurement reveals that the short‐ to medium‐range order of this glass is unchanged. The EPMA measurement confirms the homogeneity of fabricated glass. The great enhancement and red‐shift under blue light excitation may originate from the conversion of Bi active centers to low valence. Our results indicate that the trace addition of nitride could be a facile and maneuverable way to control the valence of active ions in glasses, which may contribute to improving the performance of photonic glasses.

show abstract

“…Figure A exhibits the decay curves of 1165 nm emission of Nx samples excited by 467 nm. The average fluorescence lifetime

normalτ

can be evaluated by the following equation,

τ = \int I false(t false) t d t / \int I false(t false) d t

where the

I (t)

Section: Resultsmentioning

confidence: 99%

“…7A exhibits the decay curves of 1165 nm emission of Nx samples excited by 467 nm. The average fluorescence lifetime s can be evaluated by the following equation,35 s ¼…”

mentioning

confidence: 99%

New strategy to enhance the broadband near‐infrared emission of bismuth‐doped laser glasses

Cao

Wang

et al. 2018

J Am Ceram Soc

Self Cite

View full text Add to dashboard Cite

show abstract

“…The decay curves of 1135 nm emission are shown in Figure A‐C. The lifetimes of 1135 nm are evaluated by average lifetime (

\overset{τ}{true}

) derived by,…”

Section: Resultsmentioning

confidence: 99%

Enhanced NIR photoemission from Bi‐doped aluminoborate glasses via topological tailoring of glass structure

et al. 2018

Self Cite

View full text Add to dashboard Cite

Bismuth (Bi)‐doped laser glasses with broadband emission are of current interest in the fields of sensing, bio‐imaging, and photonics. For practical applications, it must be considered how to improve the emission efficiency, in particular, for borate glasses with wide glass‐forming range, low melting point, and excellent fiberizing ability. Herein, we experimentally demonstrate that addition of GeO2 to aluminoborate glasses can effectively enhance Bi NIR emission by more than 300 times with prolonged decay time (~500 μs) and good homogeneity, which is, to our best knowledge, seldom achieved in Bi‐doped borate multi‐component glasses. The addition of second glass‐former GeO2, as revealed by detailed optical and structural analysis, leads to the facile regulation on local glass structure, forcing the conversion of aluminum species from AlO5 and AlO6 to AlO4 and consequently pushes the conversion of Bi3+ to Bi+ and Bi0 and stabilizes Bi NIR centers, which finally results in highly enhanced Bi NIR emission. We believe these results could contribute to designing Bi‐activated multi‐component laser glass and fibers with efficient NIR photoemission.

show abstract

“…5,6 In addition, the N sites can also be occupied by rare earth ions by isomorphic replacement in the cryolite lattice, such as K 3 GaF 6 , 7 K 3 InF 6 , 8 and K 3 LuF 6 . 9 Since the luminescence behavior of rare earth ions depends on the matrix, it is signicant to explore novel cryolite luminescent materials. On the other hand, multicolor single-phase phosphors occupy an important seat in the eld of luminescent materials.…”

Section: Introductionmentioning

confidence: 99%

Luminescence properties and energy transfer of K₃LuF₆:Tb³⁺,Eu³⁺ multicolor phosphors with a cryolite structure

et al. 2019

View full text Add to dashboard Cite

In recent years, compounds with a cryolite structure have become excellent hosts for luminescent materials. In this paper, Tb 3+ doped and Tb 3+ /Eu 3+ co-doped K 3 LuF 6 phosphors were prepared via a high temperature solid phase sintering method. The XRD, SEM, as well as photoluminescence excitation (PLE) and emission (PL) spectra were measured to investigate the structure and luminescence properties of the as-prepared samples. In the Tb 3+ /Eu 3+ co-doped K 3 LuF 6 samples, both characteristic emission spectra of Tb 3+ and Eu 3+ could be observed and the emission color of the K 3 LuF 6 :0.12Tb 3+ ,xEu 3+ phosphors could be adjusted from green to yellowish pink and the corresponding CIE values could be regulated from (0.2781, 0.5407) in the green area to (0.4331, 0.3556) in the yellowish pink area by controlling the concentration ratio of Eu 3+ /Tb 3+ . In addition, the energy transfer mechanism in Tb 3+ / Eu 3+ co-doped K 3 LuF 6 was calculated to be a quadrupole-quadrupole interaction from Tb 3+ to Eu 3+ based on the Dexter's equation.

show abstract

Wide‐range thermometry based on green up‐conversion luminescence of K₃LuF₆:Yb³⁺/Er³⁺ bulk oxyfluoride glass ceramics

Cited by 84 publications

References 34 publications

New strategy to enhance the broadband near‐infrared emission of bismuth‐doped laser glasses

New strategy to enhance the broadband near‐infrared emission of bismuth‐doped laser glasses

Enhanced NIR photoemission from Bi‐doped aluminoborate glasses via topological tailoring of glass structure

Luminescence properties and energy transfer of K₃LuF₆:Tb³⁺,Eu³⁺ multicolor phosphors with a cryolite structure

Contact Info

Product

Resources

About

Wide‐range thermometry based on green up‐conversion luminescence of K3LuF6:Yb3+/Er3+ bulk oxyfluoride glass ceramics

Cited by 84 publications

References 34 publications

New strategy to enhance the broadband near‐infrared emission of bismuth‐doped laser glasses

New strategy to enhance the broadband near‐infrared emission of bismuth‐doped laser glasses

Enhanced NIR photoemission from Bi‐doped aluminoborate glasses via topological tailoring of glass structure

Luminescence properties and energy transfer of K3LuF6:Tb3+,Eu3+ multicolor phosphors with a cryolite structure

Contact Info

Product

Resources

About

Wide‐range thermometry based on green up‐conversion luminescence of K₃LuF₆:Yb³⁺/Er³⁺ bulk oxyfluoride glass ceramics

Luminescence properties and energy transfer of K₃LuF₆:Tb³⁺,Eu³⁺ multicolor phosphors with a cryolite structure