| 초록 |
The interest in photovoltaic cells (PVs) has increased due to the growing demand for renewable and green energy sources. Polymer-based solar cells (PSCs) have several advantages over silicon-based ones, such as low cost, light weight, easy fabrication by solution processing, mechanical flexibility, etc. The bulk heterojunction (BHJ) concept of conjugated polymers(as an electron donor) and fullerene derivatives(as an electron acceptor) has improved the power conversion efficiency (PCE) of the PSCs significantly by forming large interfacial areas between the donors and acceptors, leading to efficient photo-induced charge generation and ultrafast charge transfer in devices. In this presentation, recent progresses on newly developed low band gap polymers and their photovoltaic characteristics will be discussed in detail. |
