초록 |
Organic photovoltaics (OPVs) have a great potential with fabrication of light weight, flexible devices via solution process. Their flexibility and adhesion properties make it possible to use them for human tissue or skin. Furthermore, OPVs have lower noise current than commercial battery so it would enable the more precise collection and analysis the bio signals. However, to use ultra-flexible OPVs as a power source for wearable devices, transparent electrodes must have superb conductivity, and mechanical flexibility. In addition, to ensure a consistent supply of power, it must have a low reliance on incident angle of light. In this study, ultra-flexible OPVs were fabricated as a power source for wearable devices with superb biocompatibility. CYTOP was introduced as an ultra-flexible substrate and IZTO transparent electrodes were deposited by pulsed DC magnetron sputtering. As a result, the performance of OPVs were increased by minimizing the reliance on the incident angle of light. |