Free-Standing Graphene/Conducting Polymer Hybrid Cathodes as FTO and Pt-Free Electrode for Quasi-State Dye Sensitized Solar Cells
作者： Karthick Ramalingam , SarojiniJeeva Panchu , Ashish Shivaji Salunke , Kamalambika Muthukumar , Ashwin Ramanujam
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摘要: Highly conducting freestanding graphene (FSG) was synthesized by the simple vacuum filtration method and utilized as a cathode current collector for (fluorine doped tin oxide) FTO free quasi-dye sensitized solar cell (q-DSSC). Subsequently,conducting polymers (CPs) viz., polyaniline (PANI) poly(3,4-ethylene-di-oxythiophene) (PEDOT) decorated on FSG surface electrochemical polymerization which acts electrocatalytst Pt q-DSSC. Entirely, FSG/CPs affords novel architecture FTO/Pt electrode q-DSSCs. Remarkably, paper exhibits lower sheet resistance (9-11 Ω sq-1) than directly collector. Interestingly, based shows an improved electro-catalytic behaviour towards tri-iodide reduction in particularly, photovoltaic performance of FSG/PEDOT power conversion efficiency (PCE) 5.4 % compared with Pt/FTO 5.1 %. It can be stated that synergetic effect proves to cost effective efficientsubstitute cathodes
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