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Electrochemical characterization of the solvent-enhanced conductivity of poly(3,4-ethylenedioxythiophene) and its application in polymer solar cells

  • Jen Hsien Huang
  • , Dhananjay Kekuda
  • , Chih Wei Chu*
  • , Kuo Chuan Ho
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The influence of solvent on the electrochemical property and conductivity of PEDOT has been investigated by electrochemical and physical characterizations. The PEDOT treated with different solvents reveals a different reversibility of ionic transport and cycling stability, which is associated with the conformational rearrangement from aggregated to linear polymer chains, as evidenced from atomic force microscopy (AFM). The conductivity of the PEDOT thin film can also be enhanced while the degree of linear polymer chains is higher. The application of highly conductive PEDOT thin film as a buffer layer in the polymer photovoltaic devices was realized. A PCE of 4.27% for photovoltaic devices based on P3HT-PCBM under simulated sun light is achieved by using a PEDOT thin film treated with DMSO.

    Original languageEnglish
    Pages (from-to)3704-3712
    Number of pages9
    JournalJournal of Materials Chemistry
    Volume19
    Issue number22
    DOIs
    Publication statusPublished - 08-06-2009

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 7 - Affordable and Clean Energy
      SDG 7 Affordable and Clean Energy

    All Science Journal Classification (ASJC) codes

    • General Chemistry
    • Materials Chemistry

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