Related Experiment Video
Updated: Mar 12, 2026
09:01
High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings
Published on: April 16, 2017
8.2K
A dye encapsulated terbium-based metal-organic framework for ratiometric temperature sensing
Tifeng Xia1, Tao Song1, Yuanjing Cui1
1State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China. cuiyj@zju.edu.cn gdqian@zju.edu.cn.
Dalton Transactions (Cambridge, England : 2003)
|November 11, 2016
Summary
A novel terbium-based metal-organic framework (MOF) composite, TbTATAB⊃C460, functions as a highly sensitive ratiometric thermometer. This luminescent thermometer operates across a broad temperature range and offers self-calibration and reusability.
Area of Science:
- Materials Science
- Chemistry
- Nanotechnology
Background:
- Metal-organic frameworks (MOFs) offer tunable structures for advanced applications.
- Luminescent materials are crucial for sensing and thermometry.
- Developing highly sensitive and self-calibrated thermometers remains a key challenge.
Purpose of the Study:
- To synthesize a terbium-based MOF, TbTATAB, and a dual-emitting composite, TbTATAB⊃C460.
- To investigate the luminescent properties of the composite for thermometry applications.
- To evaluate the temperature sensitivity and performance of the developed MOF-based thermometer.
Main Methods:
- Synthesis and structural characterization of TbTATAB.
- Encapsulation of the luminescent dye 7-diethylamino-4-methylcoumarin (C460) into TbTATAB via an exchange strategy.
- Luminescence spectroscopy to explore temperature-dependent behavior.
Main Results:
- Successful synthesis of TbTATAB with 1D channels and the TbTATAB⊃C460 composite.
- The composite exhibits dual-emission suitable for ratiometric thermometry from 100 to 300 K.
- Achieved high temperature sensitivity (4.484% K⁻¹ at 300 K) due to energy transfer between C460 and Tb³⁺.
Conclusions:
- The TbTATAB⊃C460 composite serves as an effective, self-calibrated, and reusable luminescent thermometer.
- The material demonstrates superior thermosensitivity compared to many existing sensors.
- This MOF-based thermometer shows promise for precise temperature measurements in various applications.
