Synthesis,characterisation,and fabrication hollow fibres of zn-doped tio2 for dye-sensitized solar cells

The study aims to synthesize and characterize the hollow fibres of zn-doped tio₂. the hollow fibres were synthesized using a co-axial electrospinning machine where the sheath and core solution were composed of titanium (iv) isopropoxide and olive oil,respectively. doping zn was conducted by using zinc nitrate hexahydrate solution. the green fibres were then sintered at a temperature of 500°c. subsequently,the hollow fibres of zn-doped tio2 were fabricated as working electrode for dye-sensitized solar cells (dsscs). the scanning electron microscopy images and x-ray diffraction analysis show that doping zn produced the larger diameter and tuned the fraction of anatase and rutile of the hollow fibres of zn-doped tio2. the best performance of dsscs occurred at doping zn into tio2 with a weight ratio of 0.4% where the respective open circuit voltage,current density,fill factor,and efficiency were 0.612 v,2.935 ma/cm2,49.55%,and 0.89%. the main role of doping zn into hollow fibres of tio2 for enhancing the performance of dsscs was by increasing the current density caused by the larger diameter of hollow fibres of tio2 for dye loading and synergistic effect of anatase and rutile in the hollow fibres of tio2 for staging the electrons transfer. © school of engineering,taylor’s university.