Synergistic catalytic effect of a composite (CoS/PEDOT:PSS) counter electrode on triiodide reduction in dye-sensitized solar cells

P. Sudhagar; S. Nagarajan; Yong Gun Lee; Donghoon Song; Taewook Son; Woohyung Cho; Miyoung Heo; Kyoungjun Lee; Jongok Won; Yong Soo Kang

doi:10.1021/am2003735

Synergistic catalytic effect of a composite (CoS/PEDOT:PSS) counter electrode on triiodide reduction in dye-sensitized solar cells

P. Sudhagar, S. Nagarajan, Yong Gun Lee, Donghoon Song, Taewook Son, Woohyung Cho, Miyoung Heo, Kyoungjun Lee, Jongok Won, Yong Soo Kang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

132 Citations (Scopus)

Abstract

Inorganic/organic nanocomposite counter electrodes comprised of sheetlike CoS nanoparticles dispersed in polystyrenesulfonate-doped poly(3,4- ethylenedioxythiophene (CoS/PEDOT:PSS) offer a synergistic effect on catalytic performance toward the reduction of triiodide for dye-sensitized solar cells (DSSCs), yielding 5.4% power conversion efficiency, which is comparable to that of the conventional platinum counter electrode (6.1%). The electrochemical impedance spectroscopy (EIS) and cyclic voltammetry measurements revealed that the composite counter electrodes exhibited better catalytic activity, fostering rate of triiodide reduction, than that of pristine PEDOT: PSS electrode. The simple preparation of composite (CoS/PEDOT:PSS) electrode at low temperature with improved electrocatalytic properties are feasible to apply in flexible substrates, which is at most urgency for developing novel counter electrodes for lightweight flexible solar cells.

Original language	English
Pages (from-to)	1838-1843
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	3
Issue number	6
DOIs	https://doi.org/10.1021/am2003735
Publication status	Published - 22 Jun 2011

Keywords

CoS
Counter electrode
Dye-sensitized solar cells
Impedance spectroscopy
PEDOT:PSS

ASJC Scopus subject areas

General Materials Science

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10.1021/am2003735

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title = "Synergistic catalytic effect of a composite (CoS/PEDOT:PSS) counter electrode on triiodide reduction in dye-sensitized solar cells",

abstract = "Inorganic/organic nanocomposite counter electrodes comprised of sheetlike CoS nanoparticles dispersed in polystyrenesulfonate-doped poly(3,4- ethylenedioxythiophene (CoS/PEDOT:PSS) offer a synergistic effect on catalytic performance toward the reduction of triiodide for dye-sensitized solar cells (DSSCs), yielding 5.4% power conversion efficiency, which is comparable to that of the conventional platinum counter electrode (6.1%). The electrochemical impedance spectroscopy (EIS) and cyclic voltammetry measurements revealed that the composite counter electrodes exhibited better catalytic activity, fostering rate of triiodide reduction, than that of pristine PEDOT: PSS electrode. The simple preparation of composite (CoS/PEDOT:PSS) electrode at low temperature with improved electrocatalytic properties are feasible to apply in flexible substrates, which is at most urgency for developing novel counter electrodes for lightweight flexible solar cells.",

keywords = "CoS, Counter electrode, Dye-sensitized solar cells, Impedance spectroscopy, PEDOT:PSS",

author = "P. Sudhagar and S. Nagarajan and Lee, {Yong Gun} and Donghoon Song and Taewook Son and Woohyung Cho and Miyoung Heo and Kyoungjun Lee and Jongok Won and Kang, {Yong Soo}",

year = "2011",

month = jun,

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doi = "10.1021/am2003735",

language = "English",

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journal = "ACS Applied Materials and Interfaces",

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AU - Sudhagar, P.

AU - Nagarajan, S.

AU - Lee, Yong Gun

AU - Song, Donghoon

AU - Son, Taewook

AU - Cho, Woohyung

AU - Heo, Miyoung

AU - Lee, Kyoungjun

AU - Won, Jongok

AU - Kang, Yong Soo

PY - 2011/6/22

Y1 - 2011/6/22

N2 - Inorganic/organic nanocomposite counter electrodes comprised of sheetlike CoS nanoparticles dispersed in polystyrenesulfonate-doped poly(3,4- ethylenedioxythiophene (CoS/PEDOT:PSS) offer a synergistic effect on catalytic performance toward the reduction of triiodide for dye-sensitized solar cells (DSSCs), yielding 5.4% power conversion efficiency, which is comparable to that of the conventional platinum counter electrode (6.1%). The electrochemical impedance spectroscopy (EIS) and cyclic voltammetry measurements revealed that the composite counter electrodes exhibited better catalytic activity, fostering rate of triiodide reduction, than that of pristine PEDOT: PSS electrode. The simple preparation of composite (CoS/PEDOT:PSS) electrode at low temperature with improved electrocatalytic properties are feasible to apply in flexible substrates, which is at most urgency for developing novel counter electrodes for lightweight flexible solar cells.

AB - Inorganic/organic nanocomposite counter electrodes comprised of sheetlike CoS nanoparticles dispersed in polystyrenesulfonate-doped poly(3,4- ethylenedioxythiophene (CoS/PEDOT:PSS) offer a synergistic effect on catalytic performance toward the reduction of triiodide for dye-sensitized solar cells (DSSCs), yielding 5.4% power conversion efficiency, which is comparable to that of the conventional platinum counter electrode (6.1%). The electrochemical impedance spectroscopy (EIS) and cyclic voltammetry measurements revealed that the composite counter electrodes exhibited better catalytic activity, fostering rate of triiodide reduction, than that of pristine PEDOT: PSS electrode. The simple preparation of composite (CoS/PEDOT:PSS) electrode at low temperature with improved electrocatalytic properties are feasible to apply in flexible substrates, which is at most urgency for developing novel counter electrodes for lightweight flexible solar cells.

KW - CoS

KW - Counter electrode

KW - Dye-sensitized solar cells

KW - Impedance spectroscopy

KW - PEDOT:PSS

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

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Synergistic catalytic effect of a composite (CoS/PEDOT:PSS) counter electrode on triiodide reduction in dye-sensitized solar cells

Abstract

Keywords

ASJC Scopus subject areas

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