Luminescence lifetime thermometers based on hybrid cuprous halides with exceptional water resistance and giant thermal expansion

Chenliang Li; Luping Wang; Datao Tu; Xiaoying Shang; Mingjie Yang; Jiacheng Gong; Fei Wen; Yun Xing; Zhi Xie; Jiaxin Jiang; Shaohua Yu; Xueyuan Chen

doi:10.1038/s41377-025-01910-1

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Luminescence lifetime thermometers based on hybrid cuprous halides with exceptional water resistance and giant thermal expansion

Original Articles

- Luminescence lifetime thermometers based on hybrid cuprous halides with exceptional water resistance and giant thermal expansion
- Light: Science & Applications Vol. 14, Issue 8, Pages: 2317-2326(2025)
- Affiliations：
  
  1.State Key Laboratory of Structural Chemistry, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
  2.Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
  3.School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
  4.Fujian College, University of Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
  5.Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Key Laboratory of Flexible Electronics, Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, China
  6.College of Mechanical and Electronic Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350100, China
- Author bio：
  
  Luping Wang (lpwang@fjnu.edu.cn)
  Datao Tu (dttu@fjirsm.ac.cn)
  Xueyuan Chen (xchen@fjirsm.ac.cn)
- Funds：
- DOI：10.1038/s41377-025-01910-1
  CLC：
- Received：27 January 2025，
  
  Revised：16 May 2025，
  
  Accepted：23 May 2025，
  
  Published Online：24 June 2025，
  
  Published：31 August 2025
- Accepted：
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Li, C. L. et al. Luminescence lifetime thermometers based on hybrid cuprous halides with exceptional water resistance and giant thermal expansion. Light: Science & Applications, 14, 2317-2326 (2025).
DOI：

Li, C. L. et al. Luminescence lifetime thermometers based on hybrid cuprous halides with exceptional water resistance and giant thermal expansion. Light: Science & Applications, 14, 2317-2326 (2025). DOI： 10.1038/s41377-025-01910-1.

摘要

Abstract

Optical probes hold great promise for temperature sensing owing to their attractive properties including rapid response

high spatial resolution

and remote non-invasive detection. However

the exploration of thermometric probes is hindered by their low relative sensitivity (

) or poor structural stability in water. Herein

we propose the first example of organic-inorganic metal halides based on TPP

(TPP = triphenylphosphine) that simultaneously present excellent water resistance and sensitive temperature-dependent photoluminescence lifetime in water. Benefiting from the soft lattice induced by the organic molec

ule of TPP

giant thermal expansion and great lattice distortion were achieved with increasing temperature. As such

the self-trapped exciton luminescence lifetime of TPP

can be shortened to 1.9% of the initial value from 280 to 380 K

resulting in the highest

of 12.82% K

−1

among the undoped metal halides based luminescent thermometers. Significantly

TPP

displayed extraordinary water stability with emission intensity remaining nearly unchanged after immersing in water for 15 days. Moreover

high-precision luminescence lifetime based thermal sensing in water environment was successfully conducted

which proved to be inert to the detection depth in water with a small read-out error. This work offers new routes in the exploration of novel metal halides for highly sensitive thermometric probes toward versatile application scenarios.

关键词

Keywords

references

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