| 초록 |
Polymer solar cells (PSCs) have attracted extensively interest due to their advantages of roll-to-roll based fabrication process, lightweight, low cost, large area manufacture, and flexibility. The developments of interface materials for PSCs have been a hot research topic. Because device characteristics such as Voc, Jsc, and FF as well as the cell life-time are highly depend on the interface properties. Generally, these PSCs have used PEDOT:PSS as interface material. However, PEDOT:PSS is not an ideal interface material due to several problems including highly acidic and hygroscopic properties, leading to poor stability of PSCs. Among replacements of PEDOT:PSS, reduced graphene oxide (rGO) has advantages such as excellent mechanical, electrical, thermal and optical properties. In this work, changes in properties such as the efficiency and stability that resulted from changing the PEDOT:PSS interfacial layer to reduced graphene oxide were systematically investigated. |
