Non-contact thermometry with dual-activator luminescence of Bi3+/Sm3+: YNbO4 phosphor

Tian, Xiaodong; Dou, Hongjian; Wu, Lingyuan

doi:10.1016/j.ceramint.2020.01.068

Cited by 50 publications

(12 citation statements)

References 35 publications

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“…When the host is SrAl 12 O 19 single phase, as shown in Figure b, the most effective excitation wavelength of Sm 3+ is 404 nm. The PL spectrum of SrAl 12 O 19 :Sm 3+ under the excitation of 404 nm contains four emission peaks centered at 561, 593, 641, and 703 nm, which correspond to 4 G 5/2 → 6 H 5/2 , 4 G 5/2 → 6 H 7/2 , 4 G 5/2 → 6 H 9/2 , and 4 G 5/2 → 6 H 11/2 radiation transitions of Sm 3+ , respectively . As marked in Figure b, when 593 nm is taken as the monitoring wavelength, the corresponding PLE spectrum has multiple excitation peaks.…”

Section: Resultsmentioning

confidence: 94%

“…The PL spectrum of SrAl 12 O 19 :Sm 3+ under the excitation of 404 nm contains four emission peaks centered at 561, 593, 641, and 703 nm, which correspond to 4 G 5/2 → 6 H 5/2 , 4 G 5/2 → 6 H 7/2 , 4 G 5/2 → 6 H 9/2 , and 4 G 5/2 → 6 H 11/2 radiation transitions of Sm 3+ , respectively. 37 As marked in Figure 5b, when 593 nm is taken as the monitoring wavelength, the corresponding PLE spectrum has multiple excitation peaks. Among them, the excitation peak located between 300 and 500 nm corresponds to the transition from the 6 H 5/2 energy level to each highly excited state in Sm 3+ , and the excitation band with the peak located at 270 nm is the absorption of Sm 3+ -O 2− charge transfer band.…”

Section: Resultsmentioning

confidence: 99%

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A Dual-Mode Optical Thermometer with High Sensitivity Based on BaAl₁₂O₁₉:Sm²⁺/SrAl₁₂O₁₉:Sm³⁺ Solid Solution Phosphors

Deng

et al. 2022

Inorg. Chem.

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A series of BaAl12O19:Sm2+/SrAl12O19:Sm3+ mixed-phase phosphors were produced in one step using the traditional high-temperature solid-phase process. Because Sm is divalent in BaAl12O19 and trivalent in SrAl12O19, the coexistence of Sm2+ and Sm3+ is realized in the mixed-phase host. Since the temperature sensitivity of Sm2+ and Sm3+ in the solid solution host is significantly different, this makes it possible for the sample to measure temperature based on the fluorescence intensity ratio (FIR). The crystal model, ion emission spectrum, and temperature sensitivity of these phosphors are studied in detail. Under the co-excitation of a 410 nm excitation source, this sample has excellent temperature measurement performance in the range of 313–513 K. Based on the FIR method, the maximum absolute temperature sensitivity (S a) is 0.55 K–1 at 513 K, and the maximum relative temperature sensitivity (S r) is 2.47%K–1 at 453 K. Moreover, based on the photoluminescence lifetime temperature measurement mode, the largest value of S a at 413 K is 0.046 K–1, and the maximum value of S r at 473 K is 3.10%K–1. In short, the BaAl12O19:Sm2+/SrAl12O19:Sm3+ solid solution is a kind of phosphor with nice temperature measurement ability, and it has very strong potential in the application of noncontact optical thermometers.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

A Dual-Mode Optical Thermometer with High Sensitivity Based on BaAl₁₂O₁₉:Sm²⁺/SrAl₁₂O₁₉:Sm³⁺ Solid Solution Phosphors

Deng

et al. 2022

Inorg. Chem.

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“…The relationship between the PL intensity and the temperature can be represented using the Boltzmann equation: 38 where I T and I 0 are the emission intensity at the initial temperature and measured temperature T , respectively; A is a constant; k B is the Boltzmann constant; Δ E is the activation energy. FIR is the ratio of Sm 3+ intensity to Bi 3+ intensity (I Sm 3+ I Bi 3+ ), which is obtained using the following equation: 39 where C and B are constants and Δ E represents the activation energy. Fig.…”

Section: Resultsmentioning

confidence: 99%

Temperature sensing of Sr₃Y₂Ge₃O₁₂:Bi³⁺,Sm³⁺ garnet phosphors with tunable sensitivity

Sun

Wei

et al. 2023

Dalton Trans.

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“…Figure c shows the relation diagram of FIR with 1/ T . These two quantities can be fitted with a curve by means of the following exponential function , where parameters C, D , and Δ E are correlated to Ca 14 Al 10 Zn 6 O 35 :0.5Ti 4+ , 0.1Eu 3+ . I Ti 4+ and I Eu 3+ refer to the integral intensities of 2 T 2 → O 2– and 5 D 0 → 7 F 2 emissions (integrated from 300 to 570 nm and 605 to 640 nm, respectively).…”

Section: Resultsmentioning

confidence: 99%

Designing Optical Thermometers Using Down/Upconversion Ca₁₄Al₁₀Zn₆O₃₅: Ti⁴⁺, Eu³⁺/Yb³⁺, Er³⁺ Thermosensitive Phosphors

et al. 2022

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Down/upconversion Ca14Al10Zn6O35 inorganic phosphors codoped with Ti4+/Eu3+ or Yb3+/Er3+ were prepared. The crystal structure and downconversion luminescence properties of Ca14Al10Zn6O35:Ti4+, Eu3+ phosphors were studied in detail. Ti4+ and Eu3+ occupied Al3+ and Ca2+ sites in the host lattice, respectively. Under the excitation of 273 nm, the emission peak in the 300–570 nm band originated from the 2T2 → O2– transition of Ti4+. The f–f transition of Eu3+ ions generated multiple peaks in the 570–800 nm range. The emission intensity of Ti4+ and Eu3+ ions can be used as a fluorescence intensity ratio (FIR) signal. Based on the FIR technology, the maximum relative sensitivity (S r) and the minimum temperature uncertainty (δT) reached 1.41% K–1 and 0.07 K, respectively. Meanwhile, the temperature-sensing behaviors were explored by the temperature-dependent upconversion spectra of Er3+- and Yb3+-codoped Ca14Al10Zn6O35 phosphors. Based on the fluorescence intensity ratio of thermal coupling levels (Er3+:2H11/2/4S3/2), the maximum S r and minimum δT of upconversion phosphors reached 1.28% K–1 and 0.08 K in the temperature range of 293–473 K, respectively. Ca14Al10Zn6O35:Ti4+/Eu3+ (Yb3+/Er3+) phosphors realize temperature sensors with higher relative sensitivity, and it is a good candidate material for optical temperature measurement.

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Non-contact thermometry with dual-activator luminescence of Bi3+/Sm3+: YNbO4 phosphor

Cited by 50 publications

References 35 publications

A Dual-Mode Optical Thermometer with High Sensitivity Based on BaAl₁₂O₁₉:Sm²⁺/SrAl₁₂O₁₉:Sm³⁺ Solid Solution Phosphors

A Dual-Mode Optical Thermometer with High Sensitivity Based on BaAl₁₂O₁₉:Sm²⁺/SrAl₁₂O₁₉:Sm³⁺ Solid Solution Phosphors

Temperature sensing of Sr₃Y₂Ge₃O₁₂:Bi³⁺,Sm³⁺ garnet phosphors with tunable sensitivity

Designing Optical Thermometers Using Down/Upconversion Ca₁₄Al₁₀Zn₆O₃₅: Ti⁴⁺, Eu³⁺/Yb³⁺, Er³⁺ Thermosensitive Phosphors

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Non-contact thermometry with dual-activator luminescence of Bi3+/Sm3+: YNbO4 phosphor

Cited by 50 publications

References 35 publications

A Dual-Mode Optical Thermometer with High Sensitivity Based on BaAl12O19:Sm2+/SrAl12O19:Sm3+ Solid Solution Phosphors

A Dual-Mode Optical Thermometer with High Sensitivity Based on BaAl12O19:Sm2+/SrAl12O19:Sm3+ Solid Solution Phosphors

Temperature sensing of Sr3Y2Ge3O12:Bi3+,Sm3+ garnet phosphors with tunable sensitivity

Designing Optical Thermometers Using Down/Upconversion Ca14Al10Zn6O35: Ti4+, Eu3+/Yb3+, Er3+ Thermosensitive Phosphors

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A Dual-Mode Optical Thermometer with High Sensitivity Based on BaAl₁₂O₁₉:Sm²⁺/SrAl₁₂O₁₉:Sm³⁺ Solid Solution Phosphors

A Dual-Mode Optical Thermometer with High Sensitivity Based on BaAl₁₂O₁₉:Sm²⁺/SrAl₁₂O₁₉:Sm³⁺ Solid Solution Phosphors

Temperature sensing of Sr₃Y₂Ge₃O₁₂:Bi³⁺,Sm³⁺ garnet phosphors with tunable sensitivity

Designing Optical Thermometers Using Down/Upconversion Ca₁₄Al₁₀Zn₆O₃₅: Ti⁴⁺, Eu³⁺/Yb³⁺, Er³⁺ Thermosensitive Phosphors