Abstract
Enhanced performance of small molecular weight organic solar cells based on CuPc/C60 and TiOPc/C60 with Ag nanoparticles fabricated on the ITO anode and MoO3 as the anode buffer layer has been demonstrated.Surface plasmon induced by the incorporation of Ag nanoparticles results in the increased absorption efficiency and photogenerated exciton dissociation probability of the photoactive layers.Meanwhile,the quenching of the photogenerated excitons at the organic/metal interface can be successfully restricted by the MoO3 anode buffer layer.Consequently,the short-circuit current is improved and the other parameters maintain unaffected,which leads to an enhanced power conversion efficiency of the devices.
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