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Hybrid Mn(II)-Based Halides Gel Films for Fluorescence Lifetime-Based Temperature Sensing
Huilin Chen1, Chenliang Li2, Qian Zhu2
1State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Centre of Special Optical Fiber Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, China.
Researchers developed a novel manganese-based halide thermometry for accurate temperature sensing. This material integrated into hydrogel films offers enhanced sensitivity and in situ application for smart sensors and electronics.
Area of Science:
- Materials Science
- Nanotechnology
- Chemical Engineering
Background:
- Optical thermometry using fluorescent materials is crucial for industry and research.
- Existing methods face challenges with low sensitivity at high temperatures and in situ application.
- Precise temperature measurement is vital across diverse scientific and industrial fields.
Purpose of the Study:
- To design a highly sensitive optical thermometer with improved in situ capabilities.
- To develop a practical method for integrating thermometry into flexible materials.
- To address limitations in current temperature sensing technologies.
Main Methods:
- Design and synthesis of a hybrid manganese-based halide material for thermometry.
- Development of a photopolymerizable hydrogel film incorporating the halide thermometry.
- Fabrication and testing of chip-based temperature sensors using the luminescent gel film.
Main Results:
- The hybrid manganese-based halide thermometry achieved a relative sensitivity of 26.368% K⁻¹ at 463 K.
- The synthesized hydrogel films retained the luminescence and sensing properties of the halide material.
- The luminescent gel film demonstrated accurate performance in chip-based temperature sensing applications.
Conclusions:
- The developed manganese-based halide thermometry offers a new route for advanced temperature sensing.
- The luminescent gel film enables practical in situ temperature measurements in various systems.
- This innovation expands the possibilities for smart sensors, flexible electronics, and spectroscopy.
