Nanopatterned conductive polymer films as a Pt, TCO-free counter electrode for low-cost dye-sensitized solar cells

Jeong Kwon, Veerappan Ganapathy, Young Hun Kim, Kyung Deok Song, Hong Gyu Park, Yongseok Jun, Pil J. Yoo, Jong Hyeok Park

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

A low-cost nanopatterned highly conductive poly(3,4-ethylenedioxythiophene) (PEDOT) thin film was fabricated on a flexible plastic substrate via a chemical polymerization method combined with a nanoimprinting technique and used as a platinum (Pt), TCO-free counter electrode for dye-sensitized solar cells (DSSCs). The catalytic properties of the nanopatterned PEDOT as the counter electrode in DSSCs were studied using cyclic voltammetry, J-V measurements, impedance spectroscopy, and finite-difference time-domain (FDTD) simulations. The nanopatterned PEDOT counter electrodes exhibit better functionality as a counter electrode for tri-iodide reduction when compared to non-patterned PEDOT-based counter electrodes. The Pt and TCO-free DSSCs with a nanopatterned PEDOT-based counter electrode exhibited a power conversion efficiency of 7.1% under one sunlight illumination (100 mW cm-2), which is comparable to that of conventional DSSCs with standard platinum Pt/FTO paired counter electrodes. The ability to modulate catalytic functionality with changes in nanoscale morphology represents a promising route for developing new counter electrodes of Pt and TCO-free DSSCs.

Original languageEnglish
Pages (from-to)7838-7843
Number of pages6
JournalNanoscale
Volume5
Issue number17
DOIs
Publication statusPublished - 2013 Sep 7

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Conductive films
Platinum
Polymer films
Electrodes
Costs
Dye-sensitized solar cells
Iodides
Conversion efficiency
Cyclic voltammetry
Lighting
Polymerization
poly(3,4-ethylene dioxythiophene)
Spectroscopy
Plastics
Thin films
Substrates

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Kwon, Jeong ; Ganapathy, Veerappan ; Kim, Young Hun ; Song, Kyung Deok ; Park, Hong Gyu ; Jun, Yongseok ; Yoo, Pil J. ; Park, Jong Hyeok. / Nanopatterned conductive polymer films as a Pt, TCO-free counter electrode for low-cost dye-sensitized solar cells. In: Nanoscale. 2013 ; Vol. 5, No. 17. pp. 7838-7843.
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Nanopatterned conductive polymer films as a Pt, TCO-free counter electrode for low-cost dye-sensitized solar cells. / Kwon, Jeong; Ganapathy, Veerappan; Kim, Young Hun; Song, Kyung Deok; Park, Hong Gyu; Jun, Yongseok; Yoo, Pil J.; Park, Jong Hyeok.

In: Nanoscale, Vol. 5, No. 17, 07.09.2013, p. 7838-7843.

Research output: Contribution to journalArticle

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