AI Article Synopsis
- Transparent glasses co-doped with Er3+, Tm3+, and Yb3+ were created using various alkaline earth fluorides (MgF2, CaF2, SrF2, BaF2) alongside nano-glass-ceramics with only BaF2.
- The study focused on the thermal stability and up-conversion emission properties, revealing that increasing the mass of bivalent cations shifts the UV cutoff band towards shorter wavelengths.
- Emission colors can be fine-tuned by altering the type of alkaline earth cations, particularly with Mg2+, while emission intensity is enhanced by transforming the glass through heating or increasing the amount of alkaline-earth fluorides.
Article Abstract
Transparent Er3+/Tm3+ /Yb3+ co-doped oxyfluorogermanate glasses alone containing MgF2, CaF2, SrF2 or BaF2 and nano-glass-ceramics only containing BaF2 were prepared. The thermal stabilities and the up-conversion emission properties of the samples were investigated. Analyses of absorbance spectra reveal that the UV cutoff band moves slightly to shortwave band with the doping bivalent cation mass increasing. The results show that the emission color can be adjusted by changing the alkaline earth cation species in the glass matrixes, especially as Mg2+ is concerned, and the emission intensity can increase notably by heating the glass containing alkaline-earth fluoride into glass ceramic containing alkaline-earth fluoride nanocrystals or increasing the content of bivalent alkaline earth fluorides.
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