Jump to main content
Jump to site search

Issue 40, 2012
Previous Article Next Article

High-performance dye-sensitized solar cells based on PEDOT nanofibers as an efficient catalytic counter electrode

Author affiliations

Abstract

Poly(3,4-ethylenedioxythiophene) nanofibers (PEDOT-NFs) with 10–50 nm diameters and high electrical conductivity (up to 83 S cm−1) have been fabricated chemically within micelles composed of sodium dodecyl sulfate (SDS) as nanoreactors. Dimethyl sulfoxide (DMSO, 5 wt%) was added to a methanol-based colloidal dispersion containing PEDOT-NFs to improve dispersibility. The dye-sensitized solar cells (DSSCs) using PEDOT-NFs as a counter electrode (CE) with low surface resistance and a highly porous surface exhibited enhanced power conversion efficiency (9.2%) compared to bulk PEDOT (6.8%). To date, PEDOT-NFs have shown the highest performance among CEs using PEDOT. It also surpassed the efficiency of platinum (Pt) CEs (8.6%). Electrochemical characterization, such as cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), showed that PEDOT-NFs efficiently reduced triiodide due to the enhanced electrical and morphological properties, which contributed to the high current density (17.5 mA cm−2) and fill factor (72.6%).

Graphical abstract: High-performance dye-sensitized solar cells based on PEDOT nanofibers as an efficient catalytic counter electrode

Back to tab navigation

Publication details

The article was received on 20 Jul 2012, accepted on 29 Aug 2012 and first published on 29 Aug 2012


Article type: Paper
DOI: 10.1039/C2JM34807A
J. Mater. Chem., 2012,22, 21624-21629

  •   Request permissions

    High-performance dye-sensitized solar cells based on PEDOT nanofibers as an efficient catalytic counter electrode

    T. H. Lee, K. Do, Y. W. Lee, S. S. Jeon, C. Kim, J. Ko and S. S. Im, J. Mater. Chem., 2012, 22, 21624
    DOI: 10.1039/C2JM34807A

Search articles by author

Spotlight

Advertisements