Investigation on the upconversion luminescence and ratiometric thermal sensing of SrWO4:Yb3+/RE3+ (RE = Ho/Er) phosphors

Hang, Liu; Jian, Xiukai; Liu, Mingtai; Wang, Kailin; Bai, Guangyao; Zhang, Yuhong

doi:10.1039/d1ra06745a

Cited by 43 publications

(17 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first one is based on the CR from 2 H 11/2 and 4 S 3/2 . The second is energy transfer (ETII) from the levels 4 I 13/2 (Er 3+ ) and 2 F 5/2 (Yb 3+ ) ( 2 F 5/2 (Yb 3+ ) + 4 I 13/2 (Er 3+ ) → 2 F 7/2 (Yb 3+ ) + 4 F 9/2 (Er 3+ )) [ 11 , 17 , 18 , 19 , 20 ].…”

Section: Resultsmentioning

confidence: 99%

Investigation of Thermal Sensing in Fluoroindate Yb3+/Er3+ Co-Doped Optical Fiber

et al. 2023

View full text Add to dashboard Cite

An investigation of fluoroindate glass and fiber co-doped with Yb3+/Er3+ ions as a potential temperature sensor was assessed using the fluorescence intensity ratio (FIR) technique. Analysis of thermally coupled levels (TCLs—2H11/2 and 4S3/2), non-thermally coupled levels (non-TCLs—4F7/2 and 4F9/2), and their combination were examined. Additionally, the luminescent stability of the samples under constant NIR excitation using different density power at three different temperatures was carried out. The obtained values of absolute sensitivity (0.003 K−1—glass, 0.0019 K−1—glass fiber 2H11/2 → 4S3/2 transition) and relative sensitivity (2.05% K−1—glass, 1.64% K−1—glass fiber 4F7/2 → 4F9/2 transition), as well as high repeatability of the signal, indicate that this material could be used in temperature sensing applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Investigation of Thermal Sensing in Fluoroindate Yb3+/Er3+ Co-Doped Optical Fiber

et al. 2023

View full text Add to dashboard Cite

show abstract

“…As we know, the relation between the UC emission intensity (i.e., I) and pump power (i.e., P) is able to be expressed as: I ∝ P n or log(I) ∝ n log(P), where n represents the number of photons adopted to form the desired levels. 11,42 The plots of log(I) versus Afterward, ET from Yb 3+ to Ho 3+ occurs, resulting in the formation of the 5 I 6 level. Note that the 5 I 6 level is able to pump to the higher level of 5 F 4 / 5 S 2 via the second ET process, as depicted in Figure 3f.…”

Section: Resultsmentioning

confidence: 99%

“…For the aim of shedding light on the luminescence behaviors of the studied samples, we recorded the UC emission spectra of Al 2 Mo 3 O 12 :Ho 3+ /2 x Yb 3+ microparticles, which are depicted in Figure a. Excited by NIR light (i.e., 980 nm), all of the compounds exhibit the UC emissions of Ho 3+ , with emission bands with central wavelengths of 545, 661, and 760 nm deriving from the 5 F 4 / 5 S 2 → 5 I 8 , 5 F 5 → 5 I 8 , and 5 F 4 / 5 S 2 → 5 I 7 transitions of Ho 3+ , , respectively. Moreover, it is evident that the intensities of the detected UC emissions are able to be modified by tuning the Yb 3+ content, reaching their maximum values when x = 0.09 (see Figure b).…”

Section: Resultsmentioning

confidence: 99%

“…By increasing the pump power in the range of 59–179 mW, the UC emission intensities are promoted, in which the band positions are not changed (Figure d). As we know, the relation between the UC emission intensity (i.e., I ) and pump power (i.e., P ) is able to be expressed as: I ∝ P n or log( I ) ∝ n log( P ), where n represents the number of photons adopted to form the desired levels. , The plots of log( I ) versus log( P ) are demonstrated in Figure e to figure out the n values. Through linear fitting, it is apparent that the slopes of the generated UC emissions at 545, 661, and 760 nm in the resultant microparticles are 1.53, 1.61, and 1.52, respectively, suggesting that the populations of 5 F 4 / 5 S 2 and 5 F 5 levels all belong to the two-photon absorption process.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Manipulating Upconversion Emission and Thermochromic Properties of Ho³⁺/Yb³⁺-Codoped Al₂Mo₃O₁₂ Microparticles by Negative Lattice Expansion for Multimode Visual Optical Thermometry

Luo

et al. 2022

Inorg. Chem.

View full text Add to dashboard Cite

To ameliorate the inherent thermal quenching behaviors of upconverting materials, a series of Ho 3+ /Yb 3+ -codoped Al 2 Mo 3 O 12 (i.e., Al 2 Mo 3 O 12 :Ho 3+ /2xYb 3+ ) microparticles were developed. Upon excitation at 980 nm, intense upconversion (i.e., UC) emissions arising from Ho 3+ are observed, and their optimal states occur at x = 0.09. Besides, the UC mechanisms of these generated emissions from 5 F 4 / 5 S 2 and 5 F 5 levels all pertain to a two-photon absorption process. Furthermore, modified thermal quenching performances are realized in the resultant microparticles, in which the intensities of the UC emissions arising from 5 F 4 / 5 S 2 levels decrease as the temperature increases, while that of the UC emission from the 5 F 5 level increases and then decreases with the increase of temperature. The coexistence of nonradiative transition promoted crossrelaxation, and energy transfer routes can be responsible for the above phenomenon. By studying the diverse UC emission characteristics at high temperatures, we revealed the thermometric properties of Al 2 Mo 3 O 12 :Ho 3+ /2xYb 3+ microparticles, where their sensitivities can be regulated by selecting the spectral mode and dopant contents. According to the intensity ratio of the UC emissions originating from 5 F 5 → 5 I 8 to ( 5 F 4 , 5 S 2 ) → 5 I 7 transitions at different temperatures, one obtains that the relative and absolute sensitivities of the developed compounds reach up to 0.464% and 0.1739 K −1 , respectively. Additionally, by the analysis of the thermochromic performances of final products, their thermometric characteristics were also investigated. Note that the environmental temperature is able to be facilely read out by distinguishing the emitting color. These results verify that the Al 2 Mo 3 O 12 :Ho 3+ /2xYb 3+ microparticles are promising luminescent materials for multimode visual optical thermometry.

show abstract

“…[ 10,11 ] Among these measurements, the FIR technique is the most commonly used as it has the advantage of eliminating the disturbance caused by external influences (such as excitation power and measuring devices). [ 12–15 ]…”

Section: Introductionmentioning

confidence: 99%

Multisignal optical temperature‐sensing properties of Eu³⁺‐doped NaYF₄ nanoparticles

Pan

et al. 2022

Luminescence

View full text Add to dashboard Cite

In this paper, the multisignal (different emissions/colours) temperature sensing of NaYF 4 :Eu 3+ nanoparticles is investigated, which is based on fluorescence intensity ratios (FIRs) between 5 D 0 ! 7 F J (J=1-4) and 5 D 1 ! 7 F J' emissions. The 5 D 1 ! 7 F J' (J'=0-2) emissions can be clearly observed due to the low photon energy of NaYF 4 .Based on the FIRs between different 5 D 0 ! 7 F J and 5 D 1 ! 7 F J' emissions, higher absolute/relative temperature sensitivities are obtained. Compared with the FIR between whole 5 D 0 ! 7 F J and 5 D 1 ! 7 F J' emissions, the maximum value of S a was improved from 0.27 K À1 to 5.02 K À1 and that of S r was improved from 0.89%ÁK À1 to 1.27%Á K À1 . Furthermore, the FIRs between different colours of emissions were investigated for the application of wide-range multicolour temperature sensing.

show abstract

Investigation on the upconversion luminescence and ratiometric thermal sensing of SrWO₄:Yb³⁺/RE³⁺ (RE = Ho/Er) phosphors

Abstract: SrWO4 phosphors doped with Ho3+(Er3+)/Yb3+ are successfully prepared by a high temperature solid-state reaction method.

Cited by 43 publications

References 33 publications

Investigation of Thermal Sensing in Fluoroindate Yb3+/Er3+ Co-Doped Optical Fiber

Investigation of Thermal Sensing in Fluoroindate Yb3+/Er3+ Co-Doped Optical Fiber

Manipulating Upconversion Emission and Thermochromic Properties of Ho³⁺/Yb³⁺-Codoped Al₂Mo₃O₁₂ Microparticles by Negative Lattice Expansion for Multimode Visual Optical Thermometry

Multisignal optical temperature‐sensing properties of Eu³⁺‐doped NaYF₄ nanoparticles

Contact Info

Product

Resources

About

Investigation on the upconversion luminescence and ratiometric thermal sensing of SrWO4:Yb3+/RE3+ (RE = Ho/Er) phosphors

Abstract: SrWO4 phosphors doped with Ho3+(Er3+)/Yb3+ are successfully prepared by a high temperature solid-state reaction method.

Cited by 43 publications

References 33 publications

Investigation of Thermal Sensing in Fluoroindate Yb3+/Er3+ Co-Doped Optical Fiber

Investigation of Thermal Sensing in Fluoroindate Yb3+/Er3+ Co-Doped Optical Fiber

Manipulating Upconversion Emission and Thermochromic Properties of Ho3+/Yb3+-Codoped Al2Mo3O12 Microparticles by Negative Lattice Expansion for Multimode Visual Optical Thermometry

Multisignal optical temperature‐sensing properties of Eu3+‐doped NaYF4 nanoparticles

Contact Info

Product

Resources

About

Investigation on the upconversion luminescence and ratiometric thermal sensing of SrWO₄:Yb³⁺/RE³⁺ (RE = Ho/Er) phosphors

Manipulating Upconversion Emission and Thermochromic Properties of Ho³⁺/Yb³⁺-Codoped Al₂Mo₃O₁₂ Microparticles by Negative Lattice Expansion for Multimode Visual Optical Thermometry

Multisignal optical temperature‐sensing properties of Eu³⁺‐doped NaYF₄ nanoparticles