| 초록 |
Polymer solar cells for the fabrication of cost-efficient and flexible power sources have undergone considerable development. Among the various systems, P3HT and PCBM networks have shown the highest efficiency; however, further improvement in efficiency is required for commercial applications. In addition, the current state-of-the-art cells are typically fabricated on rigid glass with ITO, and, as a result, do make a limitation for low-cost photovoltaic energy conversion due to the ever-increasing cost of indium. In this respect, we describe ITO-free OSCs fabricated on glass and flexible plastic substrates. The efficiency of the ITO-free OSCs was comparable to that of ITO-based devices. Furthermore, the efficiency of ITO-free OSCs with PEDOT anodes remained unchanged even after more than 300 bending cycles, demonstrating superior mechanical robustness compared to ITO-based cells. |
