Related Experiment Video
Updated: Sep 15, 2025
09:03
A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
7.3K
Optical Temperature Sensor Based on Er3+/Yb3+-Codoped Perovskite BaZrO3
Pham Van Huan1, Bui Xuan Kien1, Dinh Van Chau1
1Electric Power University, Hanoi City, Vietnam.
Summary
Erbium/Ytterbium-codoped Barium Zirconate (BaZrO3:Er3+, Yb3+) phosphors were synthesized for optical temperature sensing. These phosphors exhibit tunable luminescence and a maximum relative sensitivity of 1.03 × 10-2 K-1.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Luminescence and Spectroscopy
Background:
- Perovskite materials offer tunable optical properties.
- Lanthanide-doped phosphors are promising for optical thermometry.
- Barium Zirconate (BaZrO3) is a stable perovskite host.
Purpose of the Study:
- To synthesize Er3+/Yb3+-codoped BaZrO3 phosphors.
- To investigate their luminescence properties.
- To evaluate their potential as optical temperature sensors.
Main Methods:
- Pyrolysis reaction for phosphor synthesis.
- Photoluminescence spectroscopy for emission analysis.
- Fluorescence Intensity Ratio (FIR) technique for temperature sensing.
Main Results:
- Successful synthesis of cubic BaZrO3:Er3+, Yb3+.
- Green luminescence observed with 980-nm excitation; Yb3+ tunes emission to yellow/red.
- Optical temperature sensor demonstrated sensitivity up to 1.03 × 10-2 K-1 in the 293-473 K range.
Conclusions:
- BaZrO3:Er3+, Yb3+ phosphors are effective for optical temperature sensing.
- The FIR method utilizing thermally coupled levels is suitable for this application.
- The synthesized phosphors show potential for non-contact thermometry.
