| 초록 |
High porous TiO2 nanofibers were prepared for DSSC. The surface morphology of nanofibers was examined by scanning electron microscopy(SEM), transmission electron microscopy (TEM), x-ray difrraction (XRD). The average diameter of these nanofibers was ~800nm. Porosity of nanofibers was characterized using brunauer emmett teller (BET).Structure of the sintered composite was characterized using themogravimetric analysis - differential scanning calorimetry (TGA-DSC). There are two endothermic peaks at 360℃and 550℃ which indicate the degradation of polyvinylpyrrolydone (PVP) and the formation of TiO2 respectively. |
