Crystallization behavior, thermal and fluorescence properties of germanate glass ceramic based on Ga2O3 replacing GeO2
Source abstract
Abstract
This paper focuses on the effects of Ga 2 O 3 /GeO 2 ratios and heat treatment on the structure, crystallization and fluorescence properties of Gd 2 O 3 -Ga 2 O 3 -GeO 2 -Nd 2 O 3 glass system. According to the results, the glass network's structural stability suffers when the ratio of Ga 2 O 3 /GeO 2 is low. As the ratio of Ga 2 O 3 /GeO 2 continues to increase, Ga 3+ ions are transformed into [GaO 4 ] to participate in the construction of the glass network structure. The principal phase of glass-ceramics is GdGaGe 2 O 7 , and the secondary phase is Ga 4 GeO 8 , GeO 2 and Gd 3 Ga 5 O 12 . Moreover, the glasses with high content of Ga 2 O 3 is easier to prepare translucent glass-ceramics with uniform grain distribution and size. The emission spectrum intensity of glass-ceramics is obviously improved compared with that of glasses. In addition, it is found that the emission peak of Nd 3+ ions generated by 4 F 3/2 → 4 I 11/2 electron transition is stably redshifted from 1060 nm to 1088 nm by microcrystallization, which means a small range of spectrum is adjustable.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (59)
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