研究目的
Investigating the impact of temperature on spectroscopic properties and optical sensor qualities of Er3+,Yb3+-doped oxyfluorotellurite glasses.
研究成果
The study demonstrated the potential of Er3+,Yb3+-doped oxyfluorotellurite glasses for optical sensor thermometry, with maximum absolute and relative sensitivities established. The materials showed promise for applications requiring temperature sensing and photon down-conversion.
研究不足
The study is limited by the temperature range (295–675 K) and the specific compositions of the glasses tested. The thermal quenching of luminescence at higher temperatures may limit the application in high-temperature regimes.
1：Experimental Design and Method Selection:
The study involved the manufacture of oxyfluorotellurite glasses co-doped with erbium and ytterbium, followed by differential thermal analysis to estimate glass transition and crystallization temperatures. Spectroscopic properties were analyzed using excitation, emission, and fluorescence lifetime spectroscopy.
2：Sample Selection and Data Sources:
High purity reagents were used to prepare the glasses with specific chemical compositions. The samples were melted in a resistance furnace and annealed to remove internal stresses.
3：List of Experimental Equipment and Materials:
A NETZSCH differential scanning calorimeter DSC 404/3/F, FLS980 Edinburgh Instrument fluorescence spectrometer, Dongwoo Optron system, Tektronix MDO 4054B-3 Mixed Domain Oscilloscope, and a Continuum Surelite 1 optical parametric oscillator were used.
4：Experimental Procedures and Operational Workflow:
The glasses were melted, poured, and annealed. Spectroscopic measurements were conducted at various temperatures to study up-conversion luminescence and thermal quenching.
5：Data Analysis Methods:
The data was analyzed to determine fluorescence intensity ratios and temperature sensitivities, with fitting performed using OriginLab software.
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