A composite film of TiS2/PEDOT:PSS as the electrocatalyst for the counter electrode in dye-sensitized solar cells

Chun Ting Li; Chuan Pei Lee; Yu Yan Li; Min Hsin Yeh; Kuo Chuan Ho

doi:10.1039/c3ta12603j

A composite film of TiS₂/PEDOT:PSS as the electrocatalyst for the counter electrode in dye-sensitized solar cells

Chun Ting Li, Chuan Pei Lee, Yu Yan Li, Min Hsin Yeh, Kuo Chuan Ho^*

^*Corresponding author for this work

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

56 Citations (Scopus)

Abstract

A composite film of titanium disulfide/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (TiS₂/PEDOT:PSS) was deposited on a indium-doped tin oxide (ITO) conducting substrate by the drop coating technique, as the counter electrode (CE) of dye-sensitized solar cells (DSSCs). TiS ₂ particles were well distributed in the polymer matrix of PEDOT:PSS and served as an electrocatalyst material for the redox reaction of iodide/triiodide ions (I^-/I₃^-) with high conductivity and attractive catalytic ability. The TiS₂/PEDOT:PSS composite CE showed good uniformity and provided a large electrochemical surface area, which resulted in a high cell efficiency (η) of 7.04%. The high efficiency of the cell with the TiS₂/PEDOT:PSS composite CE could be a potential choice for replacing the expensive Pt CE. Scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive X-ray spectroscopy (EDX) were used to characterize the morphology of different CEs, including Pt, bare TiS₂, bare PEDOT:PSS and the TiS ₂/PEDOT:PSS composite. The catalytic ability and electrochemical properties of the CEs were quantified by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Tafel plots and rotating disk electrode (RDE) measurements. The high cell efficiency of DSSCs with the TiS₂/PEDOT:PSS composite CE was verified by the incident photon-to-current conversion efficiency (IPCE) curves.

Original language	English
Pages (from-to)	14888-14896
Number of pages	9
Journal	Journal of Materials Chemistry A
Volume	1
Issue number	47
DOIs	https://doi.org/10.1039/c3ta12603j
Publication status	Published - 2013 Dec 21
Externally published	Yes

ASJC Scopus subject areas

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

UN SDGs

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

Access to Document

10.1039/c3ta12603j

Cite this

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title = "A composite film of TiS2/PEDOT:PSS as the electrocatalyst for the counter electrode in dye-sensitized solar cells",

abstract = "A composite film of titanium disulfide/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (TiS2/PEDOT:PSS) was deposited on a indium-doped tin oxide (ITO) conducting substrate by the drop coating technique, as the counter electrode (CE) of dye-sensitized solar cells (DSSCs). TiS 2 particles were well distributed in the polymer matrix of PEDOT:PSS and served as an electrocatalyst material for the redox reaction of iodide/triiodide ions (I-/I3-) with high conductivity and attractive catalytic ability. The TiS2/PEDOT:PSS composite CE showed good uniformity and provided a large electrochemical surface area, which resulted in a high cell efficiency (η) of 7.04%. The high efficiency of the cell with the TiS2/PEDOT:PSS composite CE could be a potential choice for replacing the expensive Pt CE. Scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive X-ray spectroscopy (EDX) were used to characterize the morphology of different CEs, including Pt, bare TiS2, bare PEDOT:PSS and the TiS 2/PEDOT:PSS composite. The catalytic ability and electrochemical properties of the CEs were quantified by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Tafel plots and rotating disk electrode (RDE) measurements. The high cell efficiency of DSSCs with the TiS2/PEDOT:PSS composite CE was verified by the incident photon-to-current conversion efficiency (IPCE) curves.",

author = "Li, {Chun Ting} and Lee, {Chuan Pei} and Li, {Yu Yan} and Yeh, {Min Hsin} and Ho, {Kuo Chuan}",

year = "2013",

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doi = "10.1039/c3ta12603j",

language = "English",

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T1 - A composite film of TiS2/PEDOT:PSS as the electrocatalyst for the counter electrode in dye-sensitized solar cells

AU - Li, Chun Ting

AU - Lee, Chuan Pei

AU - Li, Yu Yan

AU - Yeh, Min Hsin

AU - Ho, Kuo Chuan

PY - 2013/12/21

Y1 - 2013/12/21

N2 - A composite film of titanium disulfide/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (TiS2/PEDOT:PSS) was deposited on a indium-doped tin oxide (ITO) conducting substrate by the drop coating technique, as the counter electrode (CE) of dye-sensitized solar cells (DSSCs). TiS 2 particles were well distributed in the polymer matrix of PEDOT:PSS and served as an electrocatalyst material for the redox reaction of iodide/triiodide ions (I-/I3-) with high conductivity and attractive catalytic ability. The TiS2/PEDOT:PSS composite CE showed good uniformity and provided a large electrochemical surface area, which resulted in a high cell efficiency (η) of 7.04%. The high efficiency of the cell with the TiS2/PEDOT:PSS composite CE could be a potential choice for replacing the expensive Pt CE. Scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive X-ray spectroscopy (EDX) were used to characterize the morphology of different CEs, including Pt, bare TiS2, bare PEDOT:PSS and the TiS 2/PEDOT:PSS composite. The catalytic ability and electrochemical properties of the CEs were quantified by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Tafel plots and rotating disk electrode (RDE) measurements. The high cell efficiency of DSSCs with the TiS2/PEDOT:PSS composite CE was verified by the incident photon-to-current conversion efficiency (IPCE) curves.

AB - A composite film of titanium disulfide/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (TiS2/PEDOT:PSS) was deposited on a indium-doped tin oxide (ITO) conducting substrate by the drop coating technique, as the counter electrode (CE) of dye-sensitized solar cells (DSSCs). TiS 2 particles were well distributed in the polymer matrix of PEDOT:PSS and served as an electrocatalyst material for the redox reaction of iodide/triiodide ions (I-/I3-) with high conductivity and attractive catalytic ability. The TiS2/PEDOT:PSS composite CE showed good uniformity and provided a large electrochemical surface area, which resulted in a high cell efficiency (η) of 7.04%. The high efficiency of the cell with the TiS2/PEDOT:PSS composite CE could be a potential choice for replacing the expensive Pt CE. Scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive X-ray spectroscopy (EDX) were used to characterize the morphology of different CEs, including Pt, bare TiS2, bare PEDOT:PSS and the TiS 2/PEDOT:PSS composite. The catalytic ability and electrochemical properties of the CEs were quantified by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Tafel plots and rotating disk electrode (RDE) measurements. The high cell efficiency of DSSCs with the TiS2/PEDOT:PSS composite CE was verified by the incident photon-to-current conversion efficiency (IPCE) curves.

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