| 초록 |
Titanium isopropoxide(TIP) containing nanofibers have been prepared using electrospinning technique. Poly(vinylidenefluoride-cohexafluoropropylene) was used to fabricate nanofibers. Electrospinning parameters such as viscosity and flow rate of the solution, distance and voltage between the collector and the tip have been optimized during the experiment. To detect the tendency between the cell efficiency and the solution composition change, variation of weight percentage of TIP were adjusted. The calcination of the nanofibers was conducted to trace the existence of TIP in the nanofiber matrix. To verify the effect of fibers on Dye-sensitized Solar Cell(DSSC), we applied this fiber to DSSC photovoltaic characteristics. Photovoltaic performances were measured by using solar simulator under AM 1.5. The maximum efficiency of DSSC device using PVDF-HFP/TIP was 5.74%, and Voc, Jsc, and FF values were 0.74V, 12.7mA/cm2, and 0.61, respectively. |
