Upconversion luminescence and optical thermometry based on non-thermally-coupled levels of Ca9Y(PO4)7: Tm3+, Yb3+ phosphor

Zhuang, Yongyong; Wang, Dawei; Yang, Zhiping

doi:10.1016/j.optmat.2022.112167

Cited by 23 publications

(7 citation statements)

References 38 publications

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“…However, the maximum energy level spacing between thermally coupled energy levels cannot exceed 2000 cm −1 , which inherently limits further improvement of the sensing sensitivity. 47 Therefore, researchers have proposed a new strategy to address the above drawback, i.e., R FIR based on nonthermally coupled energy levels. Under the same conditions, we performed a logarithmic fit of the 809 and 650 nm fluorescence intensity ratios corresponding to the Tm 3+ nonthermally coupled energy levels 3 H 4 -3 H 6 and 1 G 4 -3 H 6 of representative samples versus temperature, and the fitted data are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Upconversion Luminescence Properties and Temperature Sensing Characteristics of Tm³⁺, Yb³⁺-codoped SrAl₂Si₂O₈ Phosphors with High Thermometric Sensitivities

Taximaimaiti,

Sidike,

Abulimiti

et al. 2024

ECS J. Solid State Sci. Technol.

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In this paper, a SrAl2Si2O8:Tm3+,Yb3+ upconversion (UC) phosphor was prepared with a high-temperature solid-phase method and proved that the strontium feldspar structure was an excellent UC matrix. The Tm3+ were shown to have a maximum relative thermometric sensitivity (Sr) of 1.67% K-1 at 298 K and a maximum absolute thermometric sensitivity (Sa) of 1.34% K-1 at 573 K. The non-thermally coupled energy level corresponded to the maximum relative thermometry sensitivity (Sr) of 2.4% K-1 at 298 K and a maximum absolute sensitivity (Sa) of 13% K-1 at 423 K . The use of the fluorescence intensity ratio of the nonthermally coupled energy levels of Tm3+ for temperature measurements improved the temperature measurement sensitivity of the same material. These results indicate that the phosphor has good temperature sensing performance with a wide sensing range and good stability and has potential thermometry applications in the first biological window.

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Section: Resultsmentioning

confidence: 99%

Upconversion Luminescence Properties and Temperature Sensing Characteristics of Tm³⁺, Yb³⁺-codoped SrAl₂Si₂O₈ Phosphors with High Thermometric Sensitivities

Taximaimaiti,

Sidike,

Abulimiti

et al. 2024

ECS J. Solid State Sci. Technol.

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“…[121] Contrarily, it is noteworthy that the majority of energy levels resulted are also from non-thermally coupled levels with various temperature-dependent characteristics that are also employed to monitor temperature change. [122] The sensing performance of various sensors based on the excitation, emission, transitions, energy gap ΔE, temperature range and absolute and relative sensitivity is comparatively summarized in Table 3.…”

Section: Downconversion Nanoparticlesmentioning

confidence: 99%

Luminescence‐Based Infrared Thermal Sensors: Comprehensive Insights

Fahad,

Li,

Zhai

et al. 2023

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Recent chronological breakthroughs in materials innovation, their fabrication, and structural designs for disparate applications have paved transformational ways to subversively digitalize infrared (IR) thermal imaging sensors from traditional to smart. The noninvasive IR thermal imaging sensors are at the cutting edge of developments, exploiting the abilities of nanomaterials to acquire arbitrary, targeted, and tunable responses suitable for integration with host materials and devices, intimately disintegrate variegated signals from the target onto depiction without any discomfort, eliminating motional artifacts and collects precise physiological and physiochemical information in natural contexts. Highlighting several typical examples from recent literature, this review article summarizes an accessible, critical, and authoritative summary of an emerging class of advancement in the modalities of nano and micro‐scale materials and devices, their fabrication designs and applications in infrared thermal sensors. Introduction is begun covering the importance of IR sensors, followed by a survey on sensing capabilities of various nano and micro structural materials, their design architects, and then culminating an overview of their diverse application swaths. The review concludes with a stimulating frontier debate on the opportunities, difficulties, and future approaches in the vibrant sector of infrared thermal imaging sensors.

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“…Traditional temperature detection techniques frequently involve contact measurement and these thermometers often fall short of the demands for their applications in a variety of challenging and harsh environments such as in tissue cells. 25 Therefore, temperature monitoring technique based on fluorescence intensity ratio (FIR) is regarded as promising due to its non-contact, high sensitivity, and broad detection range benefits. 26 Change in FIR with temperature is often caused by repopulation of electrons in thermally coupled levels (TCLs) upon thermal excitation.…”

Section: Introductionmentioning

confidence: 99%

Comparative studies of upconversion luminescence and optical temperature sensing in Tm³⁺/Yb³⁺ codoped LaVO₄ and GdVO₄ phosphors

Upadhyay

Kumar

2023

RSC Adv.

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Upconversion luminescence and optical thermometry based on non-thermally-coupled levels of Ca9Y(PO4)7: Tm3+, Yb3+ phosphor

Cited by 23 publications

References 38 publications

Upconversion Luminescence Properties and Temperature Sensing Characteristics of Tm³⁺, Yb³⁺-codoped SrAl₂Si₂O₈ Phosphors with High Thermometric Sensitivities

Upconversion Luminescence Properties and Temperature Sensing Characteristics of Tm³⁺, Yb³⁺-codoped SrAl₂Si₂O₈ Phosphors with High Thermometric Sensitivities

Luminescence‐Based Infrared Thermal Sensors: Comprehensive Insights

Comparative studies of upconversion luminescence and optical temperature sensing in Tm³⁺/Yb³⁺ codoped LaVO₄ and GdVO₄ phosphors

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Upconversion luminescence and optical thermometry based on non-thermally-coupled levels of Ca9Y(PO4)7: Tm3+, Yb3+ phosphor

Cited by 23 publications

References 38 publications

Upconversion Luminescence Properties and Temperature Sensing Characteristics of Tm3+, Yb3+-codoped SrAl2Si2O8 Phosphors with High Thermometric Sensitivities

Upconversion Luminescence Properties and Temperature Sensing Characteristics of Tm3+, Yb3+-codoped SrAl2Si2O8 Phosphors with High Thermometric Sensitivities

Luminescence‐Based Infrared Thermal Sensors: Comprehensive Insights

Comparative studies of upconversion luminescence and optical temperature sensing in Tm3+/Yb3+ codoped LaVO4 and GdVO4 phosphors

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Upconversion Luminescence Properties and Temperature Sensing Characteristics of Tm³⁺, Yb³⁺-codoped SrAl₂Si₂O₈ Phosphors with High Thermometric Sensitivities

Upconversion Luminescence Properties and Temperature Sensing Characteristics of Tm³⁺, Yb³⁺-codoped SrAl₂Si₂O₈ Phosphors with High Thermometric Sensitivities

Comparative studies of upconversion luminescence and optical temperature sensing in Tm³⁺/Yb³⁺ codoped LaVO₄ and GdVO₄ phosphors