Plasmonic enhancement of absorption in bulk-heterojunction organic solar cells

摘要

We present plasmonics-enhanced organic solar cells (OSCs) containing nanostructures of plasmonic metals in the holetransport layer extending to the active layer of the solar cell. Finite-difference time-domain (FDTD) modeling wasemployed to simulate the interaction of incident light with the plasmonic nanostructures, leading to a broadbandabsorption enhancement in the OSCs. We studied the effect of employing nanostructures of different sizes and materialson the absorption enhancement in the OSCs. In some OSCs, we demonstrate 32% increase in the short circuit currentdensity due to the presence of plasmonic nanostructures.