Microwave Assisted Preparation of Barium Doped Titania (Ba/TiO2) as Photoanode in Dye Sensitized Solar Cells

Pure TiO2 and barium (0.5 wt%) doped (Ba/TiO2) nanostructures have been synthesized via facile microwave irradiation method. The pure anatase phase of photoactive material was confirmed by X-ray diffraction. Ba doping in the host structure influenced optical band gap as UV-visible spectroscopy. increased from 3.21 eV for to 3.26 Ba/TiO2. Morphological analysis Ba/TiO2 conducted using scanning electron microscopy. Energy dispersive spectroscopy formation no impurities were observed. Electrochemical impedance showed that charge transfer resistance Ba/TiO2, which reduced dark current creation a dye-sensitized solar cell. highest power conversion efficiency (3.24%) achieved photoanode compared 2.1% photoanode-based device.