Experimental Evidence for the Carrier Transportation Enhanced Visible Light Driven Photocatalytic Process in Bismuth Ferrite (BiFeO3) One-Dimensional Fiber Nanostructures
作者： S. Bharathkumar , M. Sakar , S. Balakumar
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摘要: The effective carrier transportation schemes in one-dimensional (1D) nanofibers of bismuth ferrite (BFO) have been experimentally demonstrated comparison with their 3D particulate nanostructures. structural analysis using X-ray diffraction technique revealed the rhombohedral crystal structure R3c space group BiFeO3 and fiber influences dimension on optical properties are analyzed UV–visible absorption/diffuse reflectance spectroscopy, where band gap energy is found to be increased for fibers (∼2.39 eV) as compared particulates (∼2.32 eV). photoluminescence (PL) spectroscopy indicated a reduced radiative-emission BFO that could attributed slower recombination excited electron–hole pairs particulates, which also confirmed by estimating fluorescence lifetime measurements. room temperature photocurrent conductivity measurements showed an enhanced photo...
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