| 초록 |
Porous TiO2 hollow nanofibers with crystalline structure of anatase and high surface area were prepared by electro spinning and calcinations process. Porous TiO2 hollow nanofibers for DSSCs of high-solar conversion efficiency were prepared by addition of porogen. In this study, porous TiO2 hollow nanofibers for DSSC were prepared by electro spinning and calcination process using the precursors of titanium tetraisopropoxide (TTIP), polystyrene, and pore-forming agent had high porosity. Porous TiO2 nanofibers were prepared by calcination process. The surface morphology of nanofibers was examined by scanning electron microscopy (SEM) and x-ray diffraction (XRD). The range of diameters of these nanofibers was 80~150 nm. Porosity of nanofibers was characterized using BET. Structure of the sintered composite was characterized using TGA-DSC |
