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Improved carrier mobility and solar cell performance in graphene composites of conducting polymers is demonstrated and analyzed.

ABSTmCTThe electrochemical behavior of nitrofurantoin was studied by employing dc polarography, cyclic voltammetry, and differential pulse polarography in universal buffers of pH 2.0-12.0. Kinetic parameters such as transfer coefficients, diffusion coefficients, and heterogeneous forward rate constant values were evaluated using these techniques. Differential pulse polarography was employed for the estimation of this drug in several pharmaceutical formulations.

Polypyrrole films on fluorine doped tin oxide (FTO)‐coated glass substrate were prepared in situ by placing FTO/glass substrates where pyrrole was polymerized by methyl orange‐ferric chloride complex. The atomic force microscopy image indicated growth of acicular nanorods of polypyrrole. These films exhibited catalytic activity towards I3−/I− redox couple and have been investigated for counter electrode application in dye‐sensitized solar cell (DSSC). The fabricated DSSC with N719 dye/TiO2 as photoanode, and PPy/FTO as counter electrode shows ~1.7% efficiency.

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