Identifying and utilizing optical properties in the CaSrNb2O7:Pr3+phosphor at low temperature

Liu, Ya; Zhang, Hao; Liu, Zhichao; Cai, Yiyu; Wang, Chao; Lv, Hongyu; Zhu, Xiaodie; Wang, Chaochao; Yu, Xue; Qiu, Jianbei; Ma, Hongqing; Zhao, Lei; Xu, Xuhui

doi:10.1039/d1tc05798g

Cited by 17 publications

(11 citation statements)

References 30 publications

(28 reference statements)

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“…4 Comparison of dielectric breakdown strength and discharged energy density between this work and literature results. 10,[22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] This journal is © The Royal Society of Chemistry 2022 a similar tendency to that of room temperature. The phenomena agree well with the breakdown strength as discussed above.…”

Section: Dielectric and Energy Storage Properties Under A High Electr...mentioning

confidence: 99%

High energy storage density and low energy loss achieved by inserting charge traps in all organic dielectric materials

et al. 2022

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Section: Dielectric and Energy Storage Properties Under A High Electr...mentioning

confidence: 99%

High energy storage density and low energy loss achieved by inserting charge traps in all organic dielectric materials

et al. 2022

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“…[41] On one hand, trap depths should be elaborately tailored according to specific applications. [42][43][44] Moderate trap depths (≈0.6 eV) are preferred in applications of security signs and bioimaging to generate intense and long-lasting emission at room temperature (RT), while deep traps are required in optical information storage applications. On the other hand, elevating the working temperature (T) accelerates the release of trapped carriers, and more trapped carriers will be liberated with increasing the fading time (t).…”

Section: Introductionmentioning

confidence: 99%

Recyclable Time–Temperature Indicator Enabled by Light Storage in Particles

Song

Yang

et al. 2023

Advanced Optical Materials

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Time–temperature indicator (TTI) technologies allow for nondestructive and real‐time quality management of perishable products during the entire transport–storage process, which provides an important guarantee for the product safety of end users. However, the existing TTI technologies still have shortcomings in recyclability, sensitivity, and environmental tolerance, limiting their widespread applications. Herein, a new TTI route based on the light storage effect in persistent luminescent (PersL) materials is proposed. Such TTI is designed on account of the principle that the release rate of light‐induced trapped carriers in PersL materials is closely dependent on the storage time and temperature, enabling to establish a correlation between the number of residual carriers and the freshness of perishable products. Taking KZnF3:Mn2+ as a model material, the light‐storage‐based TTI technology shows excellent recyclability, reliability, and environmental stability. This work reveals great potentials of PersL phosphors as information recording materials in advanced TTI application and next‐generation biological detection technology.

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“…Luminescent materials have gained extensive application prospects in display lighting, anticounterfeiting, optical information storage, temperature sensing, and other fields on account of their particular optical properties. [1][2][3][4][5] Thereinto, optical temperature sensors via fluorescence intensity ratio (FIR) are rapidly developed, which is not susceptible to external interference in measurement, enriching the temperature measurement technology that holds significant implications on human daily life as well as scientific inquiry. [6][7][8][9] Moreover, FIR optical temperature sensors that exhibit multiple advantages of simple operation, fast response speed and high spatial resolution possess apparent preponderance over traditional temperature measuring technology, conducive to the harsh working environment and remote temperature monitoring applications.…”

Section: Introductionmentioning

confidence: 99%

Phase transition monitoring and temperature sensing via FIR technology in Bi/Sm‐codoped KNN transparent ceramics

Zhou

Zeng

et al. 2023

J Am Ceram Soc.

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The phase transition temperature (e.g., that of orthorhombic‐tetragonal TO‐T) of relaxor ferroelectrics are commonly obtained through electrical method (i.e., temperature dependence of dielectric constant), and the samples need to be coated with metal electrode and tested by a sophisticated impedance analyzer. This contact measuring method is inefficient, inconvenient and easy to damage the sample surface, inapplicable to transparent ferroelectrics. Here, we successfully fabricated Bi/Sm co‐doped K0.5Na0.5NbO3 transparent ceramics with photoluminescent behavior and relaxor‐like ferroelectricity, which simultaneously realized TO‐T monitoring and temperature sensing via fluorescence intensity ratio (FIR) technology. This simple, rapid, noncontact and nondestructive optical way displays small TO‐T deviation (merely 0.78%) compared to the electrical method. And the temperature‐dependent optical characteristics and coercive electric field all present abrupt changes, whose abnormal temperature regions are in accordance with that around TO‐T. In addition, the maximum absolute sensitivity and relative sensitivity of the ceramics reach 0.0072 K−1 (at 533 K) and 0.0111 K−1 (at 453 K), respectively, exhibiting superior optical temperature sensing performance. The tactical use of FIR technology is of great significance for widening the applications of luminescent‐ferroelectric transparent ceramics.

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Identifying and utilizing optical properties in the CaSrNb₂O₇:Pr³⁺phosphor at low temperature

Abstract: The temperature-dependent optical properties of lanthanide-doped phosphors have been enthusiastically investigated in the fields of biomedicine, night-vision security, and optical information storage. In this work, the dynamically varying temperature-dependent photoluminescence...

Cited by 17 publications

References 30 publications

High energy storage density and low energy loss achieved by inserting charge traps in all organic dielectric materials

High energy storage density and low energy loss achieved by inserting charge traps in all organic dielectric materials

Recyclable Time–Temperature Indicator Enabled by Light Storage in Particles

Phase transition monitoring and temperature sensing via FIR technology in Bi/Sm‐codoped KNN transparent ceramics

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