Highly conductive PEDOT films with enhanced catalytic activity for dye-sensitized solar cells

Mojgan Kouhnavard, Diao Yifan, Julio M. D' Arcy, Rohan Mishra, Pratim Biswas

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Low-cost poly (3,4 ethylenedioxythiophene) (PEDOT) films with a high electronic conductivity of 1021 S/cm were successfully deposited via iron oxide-based vapor-phase polymerization and used as a counter electrode (CE) in dye-sensitized solar cells for the first time. Reaching a high efficiency of 8.4%, the CE showed outstanding catalytic activity in iodine/triiodide (I-/I3-) reduction, with a six times lower charge transfer resistance than a standard Pt CE. Combining low cost, easy fabrication, and high electro-catalytic activity, our PEDOT films are a promising replacement for expensive platinum CEs. This efficiency is one of the highest reported among the PEDOT-based DSSC.

Original languageEnglish (US)
Pages (from-to)258-264
Number of pages7
JournalSolar Energy
Volume211
DOIs
StatePublished - Nov 15 2020
Externally publishedYes

Keywords

  • Conversion efficiency
  • Dye-sensitized solar cell
  • Electrocatalytic activity
  • Low-cost counter electrode
  • PEDOT
  • Vapor phase polymerization

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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