Al-Mamun, Mohammad Kim, Jae-Yup Lee, Kyung-Jae Ko, Young-Hui Lee, Ji-Hoon In, In-Sik Lee, Ju-Won Sung, Yung-Eun Kim, Sung-Ryong 2024-01-20T12:00:23Z 2024-01-20T12:00:23Z 2022-01-25 2013-08 0379-6779 https://pubs.kist.re.kr/handle/201004/127791 Solution processed hybrid silver nanowire (AgNW)-graphene nanoplatelets (GNP) films were prepared and the electrocatalytic activity for the cobalt redox electrolyte in dye-sensitized solar cells (DSSCs) was examined. Cyclic voltammograms and Tafel polarization measurements confirmed the superior electrocatalytic activity of AgNW-GNP electrode than that of standard Pt counter electrode (CE). Electrochemical impedance spectroscopic (EIS) study also revealed the lower charge transfer resistance (R-ct) of AgNW-GNP compared to Pt based CE. However, the resistance of the electrolyte diffusion was higher for the AgNW-GNP based CE resulted from the porous structure of the hybrid CE. The photoconversion efficiencies of the DSSC prepared with AgNW-GNP based CE was found to be 2.44%, which was comparable to that of Pt based DSSC, 2.55%. This study proposed an alternative low-cost cathode material for the cobalt redox mediator based DSSCs. (C) 2013 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA Highly electrocatalytic hybrid silver nanowire-graphene counter electrode for Co3+/2+ redox mediator based dye-sensitized solar cells Article 10.1016/j.synthmet.2013.06.010 1 SYNTHETIC METALS, v.177, pp.77 - 81 SYNTHETIC METALS 177 77 81 N scie scopus 000323592600007 2-s2.0-84880254464 Materials Science, Multidisciplinary Physics, Condensed Matter Polymer Science Materials Science Physics Polymer Science Article TRANSPARENT ELECTRODES PERFORMANCE EFFICIENCY CATALYSTS PLATINUM SHUTTLES FILMS Silver nanowire Graphene platelet Counter electrode Cyclic voltammetry Dye-sensitized solar cells