Oriented assemblies of tantalum boride nanowire bundles and their luminescent property
Oriented assemblies of tantalum boride (TaB) nanowire bundles have been synthesised via a controlled thermal process. The products were characterised with scanning electron microscopy, X-ray diffraction, transmission electron microscopy and spectrofluorometry. The results show that the as-prepared products are composed of nanowires with a diameter of 60–100 nm. According to the analysis on the reaction mechanism between Ta and BN, a possible formation mechanism of TaB nanowire bundles was proposed. The TaB nanowire bundles displayed an intensive violet photoluminescence emission at around 417 nm. The special structures of the oriented assemblies of TaB nanowires may have potential application in nanoelectronics and photonics.