Related Experiment Video
Updated: Jun 8, 2026
15:58
Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
Published on: December 3, 2013
6.1K
Pressure-Induced Emitting-Color Controllability in Mn2+-Doped MgAl2O4 Phosphors for High-Sensitivity Multiparameter
Peng Du1, Ziqi Liu1, Zhiyu Pei1
1School of Physical Science and Technology, Ningbo University, 315211 Ningbo, Zhejiang, China.
ACS Applied Materials & Interfaces
|December 18, 2025
Summary
New Mn2+-doped MgAl2O4 phosphors offer advanced luminescent manometry. These materials show pressure-dependent color changes and high sensitivity, addressing limitations in current pressure-sensing technologies.
Area of Science:
- Materials Science
- Solid State Chemistry
- Luminescence
Background:
- Current luminescent manometers face limitations.
- There is a need for novel phosphors with enhanced manometric properties.
Purpose of the Study:
- To design and synthesize Mn2+-doped MgAl2O4 phosphors for optical manometry.
- To investigate the pressure-dependent luminescence properties of these phosphors.
Main Methods:
- Synthesis of Mn2+-doped MgAl2O4 phosphors.
- Characterization using temperature-dependent emission spectra and in situ high-pressure X-ray diffraction.
- Analysis of pressure-induced spectral shifts and full width at half-maximum (FWHM) changes.
Main Results:
- Optimal doping concentration determined as 3 mol% for intense green emission.
- Phosphors exhibit excellent structural stability under high pressure (0.24-14.65 GPa).
- Significant spectral red shift (2.36 nm GPa-1) and FWHM broadening (1.26 nm GPa-1) observed with increasing pressure.
- High sensitivity of 0.015 GPa-1 achieved using color coordinates as sensing parameters.
Conclusions:
- Mn2+-doped MgAl2O4 phosphors demonstrate tunable luminescence under high pressure.
- These phosphors show potential for high-sensitivity multiparameter optical manometry applications.
