| 초록 |
Dye-sensitized solar cell systems based on highly porous nanocrystalline films of titanium dioxide(TiO2) attracts considerable technological interest because of their demonstrated high-energy conversion efficiency, low production cost. In this study, we discuss dye-sensitized solar cells based on inverse opal titanium dioxide films. Inverse opal TiO2 films with thicknesses of 12 and 23μm are deposited using self-assembled of latex spheres with a diameters of 500nm or 1μm, respectively. The interstitial voids between the spheres are filled with well-dispersed TiO2 nanoparticles and a subsequent heat treatment yields a highly organized porous structure. Our studies show that these cells have much higher efficiency than ever reported up to now for DSSCs with inverse opal structure. |
