| 초록 |
Organic photovoltaics(OPVs) have attracted a lot of interest due to lightweight, flexibility and low cost. However, there are some shortcomings such as corrosion of ITO by acidic PEDOT:PSS. So, many studies were focused on inverted structure of OPV. In inverted structure of OPVs, metal oxide was widely used as an electron collecting layer. To increase the power conversion efficiency, enhanced photon-harvesting property was required. So we introduced metal nanoparticle into the metal oxide layer. Metal nanoparticles exhibit localized surface plasmon resonance(LSPR) that couple to incident light, and they can also reflect and scatter light. In this study, we fabricated inverted OPV devices with metal oxide layer, which was introduced Au nanoparticle by changing size. As a result, the power conversion efficiency of fabricated devices was enhanced. |
