Ultrasensitive Colorimetric Luminescence Thermometry by Progressive Phase Transition

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

  • Hao Suo
  • Dongxu Guo
  • Peihang Zhao
  • Yu Wang
  • Weilin Zheng
  • Panlai Li
  • Tao Yin
  • Li Guan
  • Zhijun Wang

Detail(s)

Original languageEnglish
Article number2305241
Journal / PublicationAdvanced Science
Publication statusOnline published - 11 Dec 2023

Abstract

Luminescent materials that display quick spectral responses to thermal stimuli have attracted pervasive attention in sensing technologies. Herein, a programmable luminescence color switching in lanthanide-doped LiYO2 under thermal stimuli, based on deliberate control of the monoclinic (β) to tetragonal (α) phase transition in the crystal lattice, is reported. Specifically, a lanthanide-doping (Ln3+) approach to fine-tune the phase-transition temperature in a wide range from 294 to 359 K is developed. Accordingly, an array of Ln3+-doped LiYO2 crystals that exhibit progressive phase transition, and thus sequential color switching at gradually increasing temperatures, is constructed. The tunable optical response to thermal stimuli is harnessed for colorimetric temperature indication and quantitative detection, demonstrating superior sensitivity and temperature resolution (Sr = 26.1% K−1, δT = 0.008 K). The advances in controlling the phase-transition behavior of luminescent materials also offer exciting opportunities for high-performance personalized health monitoring. © 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.

Research Area(s)

  • doping, lanthanide ions, luminescence material, phase transition, thermometry

Citation Format(s)

Ultrasensitive Colorimetric Luminescence Thermometry by Progressive Phase Transition. / Suo, Hao; Guo, Dongxu; Zhao, Peihang et al.
In: Advanced Science, 11.12.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review