| 초록 |
Flexible dye-sensitized solar cells (DSSCs) based on plastic substrates have attracted much attention due to extensive applications such as ubiquitous powers, as well as the practical reasons such as flexibility and roll-to-roll process. However, conventional high temperature fabrication technology for glass based DSSCs, cannot be applied to flexible devices because polymer substrates cannot withstand the heat more than 150 oC. Therefore, low temperature fabrication process, without using binder or thermal sintering, was required to fabricate necked TiO2. Although several methods have been reported, the less viscous TiO2 paste makes it difficult to prepare for thicker film. In addition, the mechanical strength and bending rigidity of the film are very poor. In order to overcome these issues, we developed polymer/TiO2 nanocomposite electrodes, which can be applicable to flexible DSSCs. We will report photovoltaic properties of DSSCs, with changing of polymers structures and contents. |
