Well-dispersed PEDOT:PSS/graphene nanocomposites synthesized by in situ polymerization as counter electrodes for dye-sensitized solar cells
Source abstract
Abstract
Preparation of graphene composite material suitable for drop-coating on FTO conductive glasses in ambient conditions is reported. Highly dispersed PEDOT:PSS/graphene composites were synthesized by in situ polymerization of 3,4-ethylenedioxythiophene (EDOT) using aqueous graphene dispersions as a precursor without the need for further reducing steps. The structural properties of the PEDOT:PSS/graphene were investigated by transmission electron microscope and FT-IR spectrometry. Graphene sheets as the support material likely provided increased active sites for the polymerization of EDOT. The graphene sheets were homogeneously coated by PEDOT:PSS. Drop-coating the solution of PEDOT:PSS/graphene nanocomposites onto FTO glass yielded graphene composite counter electrodes (CEs) useful for dye-sensitized solar cells (DSSCs). Both in cyclic voltammetry measurements and electrochemical impedance spectroscopy, the composite CEs exhibited good catalytic activity. The DSSCs based on PEDOT:PSS/graphene CEs showed a conversion efficiency of 4.66 %, comparable to platinum CE-based cells which showed a conversion efficiency of 5.94 %.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
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