Dual-emitting SrY2O4:Bi3+,Eu3+ phosphor for ratiometric temperature sensing

Wei, Rongfei; Guo, Junlu; Li, Kunjiao; Yang, Lupeng; Tian, Xiangling; Li, Xiaoman; Hu, Fangfang; Guo, Hai

doi:10.1016/j.jlumin.2019.116737

Cited by 73 publications

(21 citation statements)

References 27 publications

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“…As a proof of the suitability of the studied samples for temperature detection, their sensor sensitivities (i.e., absolute sensor sensitivity ( S a ) and relative sensor sensitivity ( S r )) at different temperatures should be discussed. Based on early reports, the values of S a and S r as a function of temperature were expected to be obtained by utilizing the following expressions [ 45,46 ]

S_{a} = \frac{dFIR}{d T} = FIR \times \frac{Δ E}{k T^{2}}

S_{r} = \frac{1}{FIR} \frac{dFIR}{d T} \times 100 % = \frac{Δ E}{k T^{2}} \times 100 %

…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic and Thermometric Characteristics of Er³⁺‐Activated Bi₅IO₇ Upconverting Microparticles

Luo

Ran

et al. 2020

Adv Materials Inter

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Series of Er3+‐activated Bi5IO7 upconverting microparticles are prepared by using a wet chemical technology along with a dedicated heating process. The electronic structure of the Bi5IO7 host is systematically studied by employing the first‐principle density functional theory. The near‐infrared (NIR) triggered upconversion (UC) behaviors of the prepared samples are studied and the optimal doping content for Er3+ ions is determined to be 7 mol%. The involved luminescent mechanism is verified by the pump power dependent UC emission spectra. Through the fluorescence intensity rate route based on the 2H11/2 and 4S3/2 thermally coupled levels, the thermometric properties of the final compounds are investigated in detail. The maximum absolute and relative sensor sensitivities of the resultant microparticles are 0.0069 K‐1 and 1.36% K‐1, respectively, importantly, these values are independent on the Er3+ ion content. The photocatalytic activity of the resultant microparticles are evaluated by analyzing the degradation of RhB under the irradiation of visible and NIR light. The results demonstrate that the Er3+‐activated Bi5IO7 microparticles are promising bifunctional platforms for optical thermometers and visible‐NIR light triggered photocatalysis.

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S_{a} = \frac{dFIR}{d T} = FIR \times \frac{Δ E}{k T^{2}}

S_{r} = \frac{1}{FIR} \frac{dFIR}{d T} \times 100 % = \frac{Δ E}{k T^{2}} \times 100 %

…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic and Thermometric Characteristics of Er³⁺‐Activated Bi₅IO₇ Upconverting Microparticles

Luo

Ran

et al. 2020

Adv Materials Inter

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“…Energy transfer from various sensitizer is another efficient approach to activate the forbidden transition of these trivalent activators ions which leads to emit their characteristics color in the desire visible spectral region under a broad range of photoluminescence excitation i.e. UV to near – UV and blue spectral region 2,40,41 . However the substitution of multiple rare‐earth ions not only enhance the cost of the product but also create a decrease in the luminescence intensity of phosphors is a result of various defect formation.…”

Section: Introductionmentioning

confidence: 99%

“…However, the concept behind the highly insensitive multicolor line emission of these rare‐earth‐doped ions in the double perovskite is still under investigation. It is broadly believed that phosphors with perovskite crystal structure emit their characteristics band‐gap emission which might be considered an important factor to activate the forbidden 4f–4f transition of these ions energy with the efficient transfer 40,42,49‐51 …”

Section: Introductionmentioning

confidence: 99%

Single phase multi color emitting Ca₂LuTaO₆: Dy³⁺/Eu³⁺ double perovskite oxide phosphors

Khan

Sohail

et al. 2021

J Am Ceram Soc

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The trivalent rare‐earth (RE3+) doped phosphors show tremendous achievement in narrow band multicolor line emission for various applications. However, the 4f–4f absorption transition of these ions is forbidden in UV and blue light excitation. Usually, a sensitizer having spin allowed transition was used as a co‐dopant to excite these ions via the energy transfer phenomenon. Another approach promisingly using to excite these ions by efficient energy transfer from the intrinsic emission of the Ca2LuTaO6 double perovskite phosphors host lattice. Phosphors of Ca2LuTaO6 with double perovskite structure were synthesized by using a high‐temperature solid‐state reaction method. The produced Ca2LuTaO6 double perovskite phosphors show an intrinsic broad band emission centered at 424 nm under the excitation of 313 nm UV light. The origin of this broad band blue emission was deeply investigated by using computation and experimental approaches. The trivalent activator Dy3+ and Eu3+ were doped is a single and co‐dopant in the produced Ca2LuTaO6 phosphors to check their excitation in UV and near‐UV spectral region. X‐ray diffraction and scanning electron microscopy were used to investigate the structure and phase analysis. Various characterizations such as photoluminescence excitation, emission, and CIE chromaticity coordinates were measured which illustrate the potential of Dy3+ and Eu3+ activated Ca2LuTaO6 double perovskite phosphors for narrow band multicolor line emission for various applications.

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“…The thermographic phosphor thermometry senses temperature based on the change of peak shape, peak energy and intensity, peak shift, luminescence lifetimes, and fluorescence intensity ratio (FIR) of the phosphors against temperature [2]. The method has the advantages of remote observation, high sensitivity, good spatial resolution, and short acquisition periods [6]. In phosphor-based thermometry, the phosphors are key component and decisively determine the properties of the thermometry.…”

Section: Introductionmentioning

confidence: 99%

“…Ln 3+ -based phosphors are versatile, stable, and in general with high emission quantum yields. Various systems have been investigated as optical thermometers such as SrY 2 O 4 : Bi 3+ ,Eu 3+ [6], Gd 4 O 3 F 6 : Ho 3+ ,Yb 3+ [7], Sr 3 Y(PO 4 ) 3 :Yb 3 + /Ln 3+ [8], Sr 3 Ce(PO 4 ) 3 :Tb 3+ /Mn 2+ [9], Li 6 CaLa 2 Nb 2 O 12 : Yb/Er [10], Ce 3+ -Eu 2+ in LiSr 4 (BO 3 ) 3 [11], Er:Yb:NaY 2 F 5 O [12], etc. It was found that phosphors have good thermal stability tend to show favorable sensing properties.…”

Section: Introductionmentioning

confidence: 99%

Na(Gd,RE)(WO4)2 double tungstates (RE=Eu/Yb-Er): crystallization from a novel layered hydroxide precursor and favorable luminescence for optical thermometry

Wang

Sun

et al. 2021

Journal of Asian Ceramic Societies

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Rare earth double tungstates Na(Gd,RE)(WO 4 ) 2 (RE = Eu/Yb-Er) were successfully obtained from layered rare earth hydroxide precursors via sacrificial reaction at 200°C with molar ratio WO 4 2-/RE 3+ = 2.5 for 24 h reaction without calcination and the employment of any organic reagents. The temperature sensing performances of Na(Gd,RE)(WO 4 ) 2 (RE = Eu/Yb-Er) were comparatively investigated by analyzing the temperature-dependent down-conversion (DC) and upconversion (UC) luminescence spectra. The DC phosphors Na(Gd,Eu)(WO 4 ) 2 were found to be well capable of sensing temperature via fluorescence lifetime (FL) mode. The UC phosphors Na(Gd,Yb,Er)(WO 4 ) 2 were capable of sensing temperature via both FL mode and fluorescence intensity ratio (FIR) mode through thermally coupled 2 H 11/2 , 4 S 3/2 levels (I 520 /I 552 ), and non thermally coupled 2 H 11/2 , 4 F 9/2 energy levels (I 520 /I 670 ). The UC phosphors Na(Gd,Yb,Er)(WO 4 ) 2 have maximum absolute sensitivity (S A ) and maximum relative sensitivity (S R ) of 174 × 10 −4 K −1 (548 K) and 80 × 10 −4 K −1 (298 K) for the thermally coupled 2 H 11/2 , 4 S 3/2 levels and maximum S A and S R of ~260 × 10 −4 K −1 (300-550 K) and 96 × 10 −4 K −1 (298 K) for the non-thermally coupled 2 H 11/2 , 4 F 9/2 energy levels.

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Dual-emitting SrY2O4:Bi3+,Eu3+ phosphor for ratiometric temperature sensing

Cited by 73 publications

References 27 publications

Photocatalytic and Thermometric Characteristics of Er³⁺‐Activated Bi₅IO₇ Upconverting Microparticles

Photocatalytic and Thermometric Characteristics of Er³⁺‐Activated Bi₅IO₇ Upconverting Microparticles

Single phase multi color emitting Ca₂LuTaO₆: Dy³⁺/Eu³⁺ double perovskite oxide phosphors

Na(Gd,RE)(WO4)2 double tungstates (RE=Eu/Yb-Er): crystallization from a novel layered hydroxide precursor and favorable luminescence for optical thermometry

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Dual-emitting SrY2O4:Bi3+,Eu3+ phosphor for ratiometric temperature sensing

Cited by 73 publications

References 27 publications

Photocatalytic and Thermometric Characteristics of Er3+‐Activated Bi5IO7 Upconverting Microparticles

Photocatalytic and Thermometric Characteristics of Er3+‐Activated Bi5IO7 Upconverting Microparticles

Single phase multi color emitting Ca2LuTaO6: Dy3+/Eu3+ double perovskite oxide phosphors

Na(Gd,RE)(WO4)2 double tungstates (RE=Eu/Yb-Er): crystallization from a novel layered hydroxide precursor and favorable luminescence for optical thermometry

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Product

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Photocatalytic and Thermometric Characteristics of Er³⁺‐Activated Bi₅IO₇ Upconverting Microparticles

Photocatalytic and Thermometric Characteristics of Er³⁺‐Activated Bi₅IO₇ Upconverting Microparticles

Single phase multi color emitting Ca₂LuTaO₆: Dy³⁺/Eu³⁺ double perovskite oxide phosphors