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Targeted high-precision up-converting thermometer platform over multiple temperature zones with Er3
Zhihui Rao1, Zhilin Li1, Xiujian Zhao1
1State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China. xgong@whut.edu.cn.
Materials Horizons
|March 1, 2023
Summary
This study introduces a novel luminescence thermometer using erbium ions (Er3+) in a lead-free perovskite. It achieves high-precision temperature sensing across a wide range by selecting specific thermally coupled levels (TCLs).
Area of Science:
- Materials Science
- Spectroscopy
- Nanotechnology
Background:
- Ratiometric luminescence thermometry using trivalent erbium ions (Er3+) offers noninvasive remote sensing with high resolution.
- Thermally coupled levels (TCLs) in Er3+ thermometers follow Boltzmann statistics, but their limitations are often overlooked.
Purpose of the Study:
- To design a high-precision luminescence thermometer using a lead-free double perovskite platform.
- To investigate the selection of multiple TCLs of Er3+ for enhanced temperature resolution.
Main Methods:
- Development of a lead-free double perovskite material.
- Utilizing ratiometric luminescence thermometry with Er3+ ions.
- Selection and analysis of multiple TCLs for temperature sensing.
Main Results:
- A targeted, high-precision luminescence thermometer was successfully designed.
- Precise temperature resolution was achieved across diverse temperature regions (100 K to 880 K) by selecting different TCLs within a single system.
- Demonstrated the impact of TCL selection on thermometer performance.
Conclusions:
- The developed thermometer offers precise temperature sensing capabilities over an extended range.
- This work provides a quantitative guideline for optimizing Er3+-based thermometers.
- Paves the way for next-generation temperature sensors utilizing trivalent erbium ions.
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