Abstract

A dye sensitized solar cell based on polyaniline base (EB), single-wall carbon nanotubes, organic dyes (rhodamine B and or riboflavin), zinc oxide (ZnO) and indium–tin oxide (ITO) was successfully fabricated in this work. The electrical properties of the resultant device were investigated by measuring the current density–voltage (J–V) under both dark and illumination conditions. The photovoltaic cell parameters generated are open circuit voltage (Voc), short circuit current density (Jsc) and energy conversion efficiency (η) were evaluated under illumination (0.09 W/cm2) and are found to be 0.777 V, 0.484 mA/cm2 and 0.462%, respectively for ITO/EB-SWCNTs/ZnO-rhodamine B/ITO structure. The sensitization of ZnO using a mixture of rhodamine B and riboflavin dyes doubled the values of both Jsc and η.

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