| 초록 |
Organic photovoltaics (OPVs) have attracted much attention due to their various advantages such as solution processing, low cost and mechanical flexibility. Recently, much progress has been made in improving the performance of OPVs. OPVs with power conversion efficiencies (PCEs) over 15% for single-cell reached the level of commercialization. However, the energy loss in large area fabrication and processing problem still limit OPVs’ modularization. Zinc oxide (ZnO) is widely used as an electron transport layer (ETL) because of its excellent electron transport ability. Sometimes, it induced some problems such as interfacial compatibility with active layer, lowest unoccupied molecular orbital (LUMO) levels alignment and oxygen vacancy, which occurs energy loss when applied to the module. Thus, we designed and synthesized new n-type water/alcohol-soluble organic electron transport material to solve these problems. |
