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Highly Efficient Mn4+-Doped Red-Emitting Oxyfluorides with Excellent Water Resistance Toward Flexible Composite Fluorescent Optical Fiber Sensor : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2025

Идентификатор DOI: 10.1002/lpor.202501813

Аннотация: <jats:title>Abstract</jats:title><jats:p>Flexible thermal sensors are crucial for monitoring the important thermodynamic parameter of temperature in daily life, industrial production, and scientific research. However, significant challenges remain in simultaneously achieving reproducible, sensitive, real-time, and in situ temperatuПоказать полностьюre sensing capabilities. Herein, a Mn<jats:sup>4+</jats:sup> mono-doped CsNaNbOF<jats:sub>5</jats:sub>:Mn<jats:sup>4+</jats:sup> (CNNOFM) phosphor is designed and synthesized as a dual-mode optical thermometric material, showing high luminescence efficiencies and excellent temperature-dependent behaviors. Combined density functional theory calculations and experimental characterization reveal the isovalent group substitution mechanism between [MnF<jats:sub>6</jats:sub>]<jats:sup>2−</jats:sup> and [NbOF<jats:sub>5</jats:sub>]<jats:sup>2−</jats:sup> octahedrons, eliminating charge compensation defects in the CNNOFM system and thereby leading to enhanced luminescence efficiencies. Furthermore, CNNOFM exhibits remarkable water resistance, retaining 88.12% of its luminescent efficiency after 4 h of water immersion. The CNNOFM demonstrates high relative sensitivity in both fluorescence intensity ratio and lifetime modes, with S<jats:sub>r</jats:sub> values of 0.37% K<jats:sup>−1</jats:sup> and 5.8% K<jats:sup>−1</jats:sup> at 440 K, respectively. Finally, a flexible composite fluorescent fiber temperature sensor is fabricated based on the CNNOFM phosphor to monitor the temperature of an ice-water mixture, exhibiting satisfactory performance. This work not only provides a promising thermally sensitive material for optical thermometry but also offers a new pathway for the development of flexible optical temperature sensors.</jats:p>

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Издание

Журнал: Laser &amp; Photonics Reviews

Номера страниц: 01813

ISSN журнала: 18638880

Издатель: VCH Verlag GmbH &amp; CO. KGaA

Персоны

  • Liu Min (College of Rare Earths Jiangxi University of Science and Technology Ganzhou 341000 P. R. China)
  • Ming Hong (State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices South China University of Technology Guangdong Guangzhou 510641 P. R. China)
  • Pan Xixiang (College of Rare Earths Jiangxi University of Science and Technology Ganzhou 341000 P. R. China)
  • Zhang Jiacheng (College of Rare Earths Jiangxi University of Science and Technology Ganzhou 341000 P. R. China)
  • Molokeev Maxim S. (International Research Center of Spectroscopy and Quantum Chemistry-IRC SQC Siberian Federal University Krasnoyarsk 660041 Russia)
  • Ye Xinyu (Key Laboratory of Testing and Tracing of Rare Earth Products State Administration for Market Regulation Ganzhou 341000 P. R. China)

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