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<p>The new idea of this work is the preparation of polypyrrole (PPy) films via chronoamperometry technique as counter electrode (CE) of dye-sensitized solar cells (DSSCs). This research aims to study the effect of time deposition and monomer pyrrole content on polypyrrole films properties and the performance of the device using PPy counter electrode. The CE preparation was started with various of deposition times and followed by the various concentration of pyrrole monomer at the optimum time deposition. The characterization of the films includes field-emission electron microscopy (FESEM), energy-dispersive x-ray spectroscopy (EDX), raman spectroscopy, and UV-Vis spectroscopy. The morphology of the PPy was to be non-homogeneous with granular particles sizes ranging from 420&#xa0;nm to 480&#xa0;nm. The reflectance increases until reaching at the optimum deposition time and concentration of monomer pyrrole. The films with 90&#xa0;s deposition time and 0.2&#xa0;M monomer Py obtained the lowest charge-transfer resistance values and longest electron carrier lifetime. They are in line with the photovoltaic parameter results, yielding the power conversion efficiency (<i>PCE</i>) with the value of 2.924% and 3.081% for films deposited at 90&#xa0;s and at 0.2&#xa0;M, respectively.</p>

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Polypyrrole films prepared by chronoamperometry technique as counter electrode for dye-sensitized solar cells

  • 期刊论文

  • 发表日期：

    2026年5月7日

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  • S. A. Salleh,
  • M. Y. A. Rahman,
  • T. H. T. Aziz,
  • M. F. Omar,
  • S. Beddu,
  • A. Z. Ahdaliza,
  • N. A. Ludin,
  • N. A. S. Aziz

摘要

The new idea of this work is the preparation of polypyrrole (PPy) films via chronoamperometry technique as counter electrode (CE) of dye-sensitized solar cells (DSSCs). This research aims to study the effect of time deposition and monomer pyrrole content on polypyrrole films properties and the performance of the device using PPy counter electrode. The CE preparation was started with various of deposition times and followed by the various concentration of pyrrole monomer at the optimum time deposition. The characterization of the films includes field-emission electron microscopy (FESEM), energy-dispersive x-ray spectroscopy (EDX), raman spectroscopy, and UV-Vis spectroscopy. The morphology of the PPy was to be non-homogeneous with granular particles sizes ranging from 420 nm to 480 nm. The reflectance increases until reaching at the optimum deposition time and concentration of monomer pyrrole. The films with 90 s deposition time and 0.2 M monomer Py obtained the lowest charge-transfer resistance values and longest electron carrier lifetime. They are in line with the photovoltaic parameter results, yielding the power conversion efficiency (PCE) with the value of 2.924% and 3.081% for films deposited at 90 s and at 0.2 M, respectively.