Implementation of an alternative graphene-based electrode

Here, it is presented the fabrication of a low-cost and semitransparent three-layer graphene electrode (anode) based on an easily processable graphene derivative and the conductive polymer PH1000 (PEDOT:PSS). The graphene derivative was mechanically synthesized and suspended in water (SPGSW); its deposit was made directly by drop casting on a glass substrate. The multilayer nature of the SPGSW films was corroborated by Raman spectroscopy and a number of similar to 7 graphene layers were estimated for the SPGSW film treated with hydroiodic acid (HI) and UV-ozone plasma, which was also corroborated theoretically (similar to 6 graphene layers). Furthermore, for the SPGSW film, a thickness of similar to 5 nm was determined experimentally. The alternative three-layer graphene electrode showed a transmittance and an electrical resistance of similar to 78% (at 550 nm) and similar to 88 omega/sq, respectively. These results are promising for this alternative electrode based on the graphene derivative and for potential application in photovoltaic devices beside other uses.

Automated summary

This study presents a fabrication method for a low-cost and semitransparent three-layer graphene electrode. The electrode is made from an easily processable graphene derivative and the conductive polymer PH1000. Raman spectroscopy and theoretical calculations confirm the multilayer structure of the graphene derivative film, with an estimated 7 layers. Experimental measurements determine a thickness of approximately 5 nm for the film. The alternative three-layer graphene electrode exhibits a high transmittance of about 78% at 550 nm and a low electrical resistance of about 88 ohm/sq. These results show promising potential for the graphene derivative electrode in photovoltaic devices and other applications.