▎ 摘　　要

Solar cells entailing multi-coloring capability can pave the way for solar-powered colorful displays. Therefore, the energy that is usually wasted in color displays could be harvested to produce useful electrical power. On the other hand, introduction of color filters with capability of active control on the output color results in more compact and efficient optical devices. In this work, we have proposed a chromatic electrode in which the transmitted light has been employed as a source for the solar energy device while the reflected light generates polarization-tuned colors, simultaneously. Aiming to design such a chromatic electrode, a hybrid nanostructure of graphene and aluminum nanocross arrays has been employed for the first time. In addition to replacing ITO in organic solar cells by a novel electrode and achieving performance enhancement of organic solar cells, mapping the polarization of the incident light to visible color results in solar-powered chromatic polarizers with potential applications including active color displays, security tags, and polarization imaging. Using finite-difference time-domain numerical simulations, it has been shown that the proposed nanostructured electrode leads to enhanced photocurrent densities in the range of 11.82-17.05 (mA/cm(2)) due to the light trapping plasmonic properties of the nanocross arrays. Additionally, replacing ITO, suffering from poor mechanical properties and cost-ineffectiveness, offers a promising approach for large-area growth of organic photovoltaics.