Upconversion luminescence, optical thermometric properties and energy transfer in Yb3+/Tm3+ co-doped phosphate glass

Chen, Yong; Chen, Guohua; Liu, Xiangyu; Xu, Jiwen; Zhou, Xiujuan; Yang, Tao; Yuan, Changlai; Zhou, Changrong

doi:10.1016/j.optmat.2018.05.020

Cited by 31 publications

(6 citation statements)

References 36 publications

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“…Rare-earth-activated systems have been demonstrated to be the pillar of photonic technologies enabling a broad spectrum of crucial applications in strategic social and economic priorities [1][2][3][4][5]. Systems based on rare-earth-doped upconverters are largely employed in bioimaging, drug delivery, laser, lighting, photon management, environmental sensing, and nanothermometry [6][7][8][9][10][11][12][13][14][15]. Upconversion (UC) mechanism is a process of energy transfer from a sensitizer in a proper host matrix, which is excited under lowenergy radiation (usually near infrared, NIR), to an emitter that emits higher energy photons than the excitation ones.…”

Section: Introductionmentioning

confidence: 99%

Upconversion Luminescence of Silica–Calcia Nanoparticles Co-doped with Tm3+ and Yb3+ Ions

Halubek-Gluchowska

Szymański

Tran³

et al. 2021

Materials

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Looking for upconverting biocompatible nanoparticles, we have prepared by the sol–gel method, silica–calcia glass nanopowders doped with different concentration of Tm3+ and Yb3+ ions (Tm3+ from 0.15 mol% up to 0.5 mol% and Yb3+ from 1 mol% up to 4 mol%) and characterized their structure, morphology, and optical properties. X-ray diffraction patterns indicated an amorphous phase of the silica-based glass with partial crystallization of samples with a higher content of lanthanides ions. Transmission electron microscopy images showed that the average size of particles decreased with increasing lanthanides content. The upconversion (UC) emission spectra and fluorescence lifetimes were registered under near infrared excitation (980 nm) at room temperature to study the energy transfer between Yb3+ and Tm3+ at various active ions concentrations. Characteristic emission bands of Tm3+ ions in the range of 350 nm to 850 nm were observed. To understand the mechanism of Yb3+–Tm3+ UC energy transfer in the SiO2–CaO powders, the kinetics of luminescence decays were studied.

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Section: Introductionmentioning

confidence: 99%

Upconversion Luminescence of Silica–Calcia Nanoparticles Co-doped with Tm3+ and Yb3+ Ions

Halubek-Gluchowska

Szymański

Tran³

et al. 2021

Materials

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“…Under 980 nm laser, the optimum doping concentration of PG is determined by UC emission spectrum as 4.0Yb 3+ /0.1Ho 3+ /0.1Tm 3+ (mol%) (Figure 5A). The emission intensity of UC is no longer continuously increased with the increase of the sensitizer concentration due to concentration quenching effect 20,45,46 . Five emission bands are observed to be attributed to the transforms of 1 G 4 → 3 H 6 , 5 S 2 , 5 F 4 → 5 I 8 , 5 F 5 → 5 I 8 , 3 F 2,3 → 3 H 6 , and 3 H 4 → 3 H 6 47,48 .…”

Section: Resultsmentioning

confidence: 98%

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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“…Additionally, CCR3 parameter is increasing with the Er 3+ concentration according to the resonant ET theory. 42 Hence, both the RGR and NGR factors gain along with the increasing Er 3+ concentration, according to the Equations ( 8) and (9).…”

Section: Theoretical Analysismentioning

confidence: 99%

“…Rare‐earth (RE) doped materials have widespread applications such as solid‐state lasers, solar cells, optical communications, biomedical imaging and labeling, and other photonic devices . In virtue of outstanding up‐conversion (UC) and down‐shifting (DS) luminescent properties, lanthanide ion‐based photo‐luminescence (PL) markers, such as Er 3+ , Tm 3+ , Ho 3+ , and Pr 3+ trivalent rare earth ions, has been extensively studied for a variety of host materials . Among the RE ions, erbium ion is the most studied and has been recognized as the most efficient ions for UC, owing to relative convenience and flexible preparation, and various useful forms.…”

Section: Introductionmentioning

confidence: 99%

Green to red and NIR tunable luminescence in heavily Er³⁺‐doped tellurite glasses via selective energy transfer mechanism

Wang

et al. 2019

J Am Ceram Soc

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Here, we select simple Er3+‐doped tellurite glass as model system to systematically explore the up‐conversion, down‐shifting mechanisms with different excitations (980 and 447 nm), respectively. We observe for the first time, to the best of our knowledge that tunable photo‐luminescence occurs from green to red and NIR region, rather than merely from the long‐accepted green to red region. Direct evidence of selective energy transfer mechanism is expounded in detail, and its potential applications are demonstrated. In addition, we provide evidence that the cross‐relaxation process between dopant ions can enhance photo‐luminescence in Er3+ doped tellurite glasses with high dopant concentrations, whereas the crucial reason for emission decrease is the energy loss long‐distance energy migration. These fundamental insights into the photophysical processes in heavily doped photonic glasses will broaden the applications of rare‐earth‐doped materials ranging from optical communications to medical imaging.

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Upconversion luminescence, optical thermometric properties and energy transfer in Yb3+/Tm3+ co-doped phosphate glass

Cited by 31 publications

References 36 publications

Upconversion Luminescence of Silica–Calcia Nanoparticles Co-doped with Tm3+ and Yb3+ Ions

Upconversion Luminescence of Silica–Calcia Nanoparticles Co-doped with Tm3+ and Yb3+ Ions

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

Green to red and NIR tunable luminescence in heavily Er³⁺‐doped tellurite glasses via selective energy transfer mechanism

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Upconversion luminescence, optical thermometric properties and energy transfer in Yb3+/Tm3+ co-doped phosphate glass

Cited by 31 publications

References 36 publications

Upconversion Luminescence of Silica–Calcia Nanoparticles Co-doped with Tm3+ and Yb3+ Ions

Upconversion Luminescence of Silica–Calcia Nanoparticles Co-doped with Tm3+ and Yb3+ Ions

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

Green to red and NIR tunable luminescence in heavily Er3+‐doped tellurite glasses via selective energy transfer mechanism

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Product

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

Green to red and NIR tunable luminescence in heavily Er³⁺‐doped tellurite glasses via selective energy transfer mechanism