Plasmonic-enhanced polymer photovoltaic cells based on Au nanoparticles with wide absorption spectra of 300–1000 nm

Mixed Au nanoparticles (NPs) with wide absorption spectra of 300–1000 nm and three absorption peaks of 520, 600, and 770 nm are assembled onto the ITO anode in polymer solar cells to significantly improve the power conversion efficiency and short-circuit current by factors of 24.2% and 18.6%.