학술논문
Crystallization and luminescence properties of (SmY)O-AlO-BO glass.
Document Type
Article
Author
Source
Subject
*CRYSTALLIZATION
*LUMINESCENCE
*SOLID-phase synthesis
*SAMARIUM
*ALUMINUM borate
*SOLID solutions
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Language
ISSN
0361-7610
Abstract
Glass and products of solid-phase synthesis in the form of samarium-activated single-phase powders with huntite structure were obtained in the system YO-AlO-BO. It was shown that the glasses studied crystallize with predominately aluminum borate AlBO precipitating in the bulk and the solid solution (Y, Sm)Al(BO) on the surface of the sample. When the crystalline powders (SmY)Al(BO) transitioned into an amorphous state leveling of the Stark structure and broadening of the luminescence bands of Sm was observed, but the luminescence branching ratios changed very little. It was found that lowering the synthesis temperature of such glasses from 1450 to 1250°C increases the BO fraction and quantum yield of luminescence with low activator concentration. [ABSTRACT FROM AUTHOR]