Ultratransparent polymer/semitransparent silver grid hybrid electrodes for small-molecule organic solar cells

Abstract

A hybrid ultratransparent poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/metal grid thin-film is demonstrated as a transparent electrode for organic solar cells. The transmittance of the PEDOT:PSS thin-films on glass reaches values as high as 91.5%, a nearly 100% transmittance ratio. The device with the hybrid electrode shows an efficiency of 2.8%, which is comparable to that of an indium tin oxide based reference device.