Ln<sup>3+</sup>-Sensitized Mn<sup>4+</sup>near-infrared upconverting luminescence and dual-modal temperature sensing

Chen, Daqin; Xu, Wei; Yuan, Shuo; Li, Xinyue; Zhong, Jiasong

doi:10.1039/c7tc02182h

Cited by 97 publications

(67 citation statements)

References 53 publications

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“…Although many successes of the optical temperature sensors have been achieved, the thermal behavior of the involved activators is far from completely comprehension. Notably, an anti-thermal quenching performance of the Mn 4+ , 18 Eu 3+ , 19 and Pr 3+ 20 has been verified to be critically dependent on the trap states which compensates the luminescence intensity loss for the released carriers under thermal disturbance fundamentally. It indicates that the fluorescent intensity is not only determined by the ambient temperature, but also up to the environment of the defects structure.…”

Section: Introductionmentioning

confidence: 96%

Highly sensitive optical thermometer of Sm³⁺, Mn⁴⁺ activated LaGaO₃ phosphor for the regulated thermal behavior

Wang

et al. 2021

J Am Ceram Soc.

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Sm 3+ , Mn 4+ co-activated LaGaO 3 phosphors, giving the characteristic emissions of orange and red emission simultaneously, were prepared by a solid-state reaction. Their luminescence properties, energy transfer behavior, thermal stability, and ratiometric temperature sensing performance were investigated. Thanks to the inhibition of energy transfer between Sm 3+ and Mn 4+ ions at high temperature and the reconstruction of the traps, the distinct optical behavior of the involved activators dependent on the ambient temperature was evaluated. Antithermal quenching performance of Sm 3+ ions along with the emission declination of Mn 4+ ions was observed. Hence, the optical thermometry characteristics of the resultant phosphor based on the fluorescent intensity ratio (orange/red) realize a recorded temperature sensitivity of 4.19% K −1 and 2.09% K −1 . Moreover, the as-explored film combined with the LaGaO 3 : Sm 3+ , Mn 4+ phosphor is demonstrated to be a promising multi-color optical thermometer.

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Section: Introductionmentioning

confidence: 96%

Highly sensitive optical thermometer of Sm³⁺, Mn⁴⁺ activated LaGaO₃ phosphor for the regulated thermal behavior

Wang

et al. 2021

J Am Ceram Soc.

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“…Several approaches have focused on the enhancement of the relative sensitivity of luminescent thermometers, which includes the optimization of the stoichiometry of the host material as well as the appropriate selection of the optically active ions. A current approach that is being investigated intensively relies on the utilization of the strong temperature dependent luminescence intensity of transition metal ions (TM) in comparison to the luminescence of the lanthanide ions (Ln 3+ ) [9][10][11][12]. This is attributed to the considerable difference in their electronic configuration and interactions with the surrounding ligands; thus the spectroscopic features of the TM and Ln 3+ ions differ.…”

Section: Introductionmentioning

confidence: 99%

LiAl5O8:Fe3+ and LiAl5O8:Fe3+, Nd3+ as a New Luminescent Nanothermometer Operating in 1st Biological Optical Window

et al. 2020

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New types of contactless luminescence nanothermometers, namely, LiAl5O8:Fe3+ and LiAl5O8:Fe3+, Nd3+ are presented for the first time, revealing the potential for applications in biological systems. The temperature-sensing capability of the nanocrystals was analyzed in wide range of temperature (−150 to 300 °C). The emission intensity of the Fe3+ ions is affected by the change in temperature, which induces quenching of the 4T1 (4G) → 6A1 (6S) Fe3+ transition situated in the 1st biological window. The highest relative sensitivity in the temperature range (0 to 50 °C) was found to be 0.82% °C (at 26 °C) for LiAl5O8: 0.05% Fe3+ nanoparticles that are characterized by long luminescent lifetime of 5.64 ms. In the range of low and high temperatures the Smax was calculated for LiAl5O8:0.5% Fe3+ to be 0.92% °C at −100 °C and for LiAl5O8:0.01% Fe3+ to be 0.79% °C at 150 °C. The cytotoxicity assessment carried out on the LiAl5O8:Fe3+ nanocrystals, demonstrated that they are biocompatible and may be utilized for in vivo temperature sensing. The ratiometric luminescent nanothermometer, LiAl5O8:Fe3+, Nd3+, which was used as a reference, possesses an Smax = 0.56%/°C at −80 °C, upon separate excitation of Fe3+ and Nd3+ ions using 266 nm and 808 nm light, respectively.

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“…In this decade, dual rare‐earth (RE) ions co‐doped materials resulted from phonon‐assisted energy transfer and RE/quantum‐dots hybrid nanostructures depending on the different thermal quenching behaviors have already been efficiently synthesized. In addition, transition metal (TM) activators with 3 d n electronic configurations turned out to be an outstanding self‐referencing indicator that RE/TM‐co‐doped phosphors showed outstanding thermal sensitivity due to Stokes and up‐conversion anti‐Stokes …”

Section: Introductionmentioning

confidence: 99%

None‐rare‐earth activated Ca₁₄Al₁₀Zn₆O₃₅:Bi³⁺,Mn⁴⁺ phosphor involving dual luminescent centers for temperature sensing

et al. 2019

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We proposed a new strategy for utilizing rare‐earth–free‐activated self‐referencing optical material with dual activators for temperature sensing, which was synthesized by conventional high‐temperature solid‐state method and was scarcely reported. Originating from the different thermal responses of Mn4+ and Bi3+ ions, a Mn4+/Bi3+‐based dual‐emitting fluorescence intensity ratio (FIR) as dual‐modal temperature signal for temperature sensing has been corroborated as a promising temperature sensing method. Due to the outstanding thermal resistance of activator Mn4+ (anti‐Stokes) benefiting from the unique 3dn electronic configurations and strong field strength of host, together with the energy transfer from Bi3+ to Mn4+ ions and excellent thermal quenching of Bi3+, this temperature‐sensitive phosphor displayed both an extensive detection temperature region ranging from 303 to 563 K and excellent absolute and relative sensitivity of 0.0147 K−1 and 1.21% K−1 respectively, both of which are higher than some foregoing reported optical materials. Furthermore, two well‐separated emission peaks at blue and red regions enabled an excellent signal discriminability and accurate temperature detection under the single‐wavelength excitation of 340 nm. In addition, freedom from rare‐earth ions contributed its possibility to be mass‐produced for meeting the needs of economic rationality, nontoxic and convenient synthesis. It is anticipated that this preliminary study would arouse peoples’ attention on exploring more novel dual activator‐based optical thermometric materials in absence of rare‐earth ions.

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Ln³⁺-Sensitized Mn⁴⁺near-infrared upconverting luminescence and dual-modal temperature sensing

Abstract: In the past few decades, efficient photon upconversion (anti-Stokes) luminescence has been extensively studied and is almost exclusively restricted to lanthanide (Ln3+) doped fluorophores.

Cited by 97 publications

References 53 publications

Highly sensitive optical thermometer of Sm³⁺, Mn⁴⁺ activated LaGaO₃ phosphor for the regulated thermal behavior

Highly sensitive optical thermometer of Sm³⁺, Mn⁴⁺ activated LaGaO₃ phosphor for the regulated thermal behavior

LiAl5O8:Fe3+ and LiAl5O8:Fe3+, Nd3+ as a New Luminescent Nanothermometer Operating in 1st Biological Optical Window

None‐rare‐earth activated Ca₁₄Al₁₀Zn₆O₃₅:Bi³⁺,Mn⁴⁺ phosphor involving dual luminescent centers for temperature sensing

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Ln3+-Sensitized Mn4+near-infrared upconverting luminescence and dual-modal temperature sensing

Abstract: In the past few decades, efficient photon upconversion (anti-Stokes) luminescence has been extensively studied and is almost exclusively restricted to lanthanide (Ln3+) doped fluorophores.

Cited by 97 publications

References 53 publications

Highly sensitive optical thermometer of Sm3+, Mn4+ activated LaGaO3 phosphor for the regulated thermal behavior

Highly sensitive optical thermometer of Sm3+, Mn4+ activated LaGaO3 phosphor for the regulated thermal behavior

LiAl5O8:Fe3+ and LiAl5O8:Fe3+, Nd3+ as a New Luminescent Nanothermometer Operating in 1st Biological Optical Window

None‐rare‐earth activated Ca14Al10Zn6O35:Bi3+,Mn4+ phosphor involving dual luminescent centers for temperature sensing

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Ln³⁺-Sensitized Mn⁴⁺near-infrared upconverting luminescence and dual-modal temperature sensing

Highly sensitive optical thermometer of Sm³⁺, Mn⁴⁺ activated LaGaO₃ phosphor for the regulated thermal behavior

Highly sensitive optical thermometer of Sm³⁺, Mn⁴⁺ activated LaGaO₃ phosphor for the regulated thermal behavior

None‐rare‐earth activated Ca₁₄Al₁₀Zn₆O₃₅:Bi³⁺,Mn⁴⁺ phosphor involving dual luminescent centers for temperature sensing