초록 |
The effects of Polyfluorene copolymer (Poly(9,9)-di-n-hexylfluoreneyl-2,7-diyl) and(Poly(9,9-di-n-octylfluorenyl-2,7-diyl))layer in dye-sensitized solar cells(DSSC)were investigated. As low band gap Polyfluorene copolymer extended the lightabsorption range of DSSC and produced the photo-induced exciton, the enhancedenergy conversion efficiency of DSSC was observed. The energy conversionefficiency was enhanced depending on the number of coating and the position of the coated layer. 5 times (Poly(9,9)-di-n-hexylfluoreneyl-2,7-diyl) spin-coating on the PFO substrate improved the overall energy conversion efficiency of theDSSC. |