Tb 3+ -doped alkaline-earth aluminates: Synthesis, characterization and optical properties
Source abstract
Abstract
Abstract Un-doped and Tb 3+ -doped calcium and strontium aluminates (CaAl 2 O 4 , CaAl 2 O 4 :Tb 3+ , SrAl 2 O 4 , SrAl 2 O 4 :Tb 3+ ) were synthesized by a new soft chemical method—the precursor route via the thermal decomposition of tartarate compounds. The complex precursors have been characterized by elemental chemical analysis, infrared spectroscopy (IR), luminescence spectroscopy and thermal analysis. X-ray diffraction (XRD), scanning electron microscopy (SEM), IR and Raman spectroscopy (RS) were used for the structural and morphological characterization of un-doped and doped alkaline-earth aluminate powders. Photoluminescence (PL) and Thermoluminescence (TL) properties of the aluminates were also investigated. The XRD patterns confirmed the formation of low-temperature structures: hexagonal structure for CaAl 2 O 4 and monoclinic structure for SrAl 2 O 4 , with average crystallite size of 64 nm and 46 nm for CaAl 2 O 4 and SrAl 2 O 4 , respectively. Microstructural analysis by SEM showed the homogeneous microstructure and fine particle size of the powder obtained by precursor method.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Nuclear materials and radiation effects · Glass properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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