| 초록 |
Nanostructured inorganic materials have been widely studied in recent years for the application to hybrid solar cells. For the high efficiency in photovoltaic devices, it is important to control p-n interfaces in the nanometer scale. In this study, we employed block copolymer nanotemplates for the fabrication of TiO2 nanostructured electrodes with the sol-gel method. In thin films of diblock copolymers, the morphology and size of the nanostructure of copolymers were controlled by changing the molecular weight and composition of each block. The perpendicular nanodomains of diblock copolymers were generated on the SAM-treated TiO2/ITO substrate. After selective removal of one of the blocks, we obtained the polymer nanotemplates, which allowed the fabrication of TiO2 nanoelectrodes by the sol-gel process. We applied TiO2 nanoelectrodes to inverted hybrid solar cells with ordered bulk heterojunction structures. |
