Monoclinic Er3+ -doped Y2O3 Phosphor: Advancing Ratiometric Optical Temperature Sensing Beyond the Cubic Phase

Key Points

• This research aims to improve optical temperature sensing using monoclinic Er3+ -doped Y2O3 phosphors compared to traditional methods.
• Utilized Er3+ -doped Y2O3 phosphors for temperature sensing applications.
• Assessed light emission characteristics at various temperatures.
• Compared the performance of monoclinic and cubic phases in thermometry.
• Monoclinic Er3+ -doped Y2O3 exhibited superior sensitivity for temperature changes compared to cubic phase.
• Enhanced luminescence was observed, providing a robust ratiometric sensing method.
• Temperature measurement accuracy improved, indicating potential for remote sensing applications.