Abstract
In this paper we report on the synthesis of single-crystal Al4B2O9 nanowires by calcining the precursor powder made of disodium tetraborate decahydrate and aluminum nitride in air conditions. The as-received nanowires possess smooth surface with diameters varying between 20 and 50 nm. We can also obtain Al18B4O33:Eu nanowires with diameters varying between 50 and 70 nm by recalcining a mixture powder of the above obtained Al4B2O9 nanowires, K2SO4, and Eu2O3 in air. The structural and compositional characteristics of the as-synthesized products have been investigated by XRD, SEM, TEM, EDX, and SAED techniques. Photoluminescence investigations reveal that Al18B4O33:Eu nanowires display emission peaks at 590.0, 613.4, and 628.8 nm.
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