Enhanced electrocatalytic activity of plasma functionalized multi-walled carbon nanotube-entrapped poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) photocathode

Yong Hoon Rhee; Dong June Ahn; Min Jae Ko; Hwa Young Jin; Joon Hyung Jin; Nam Ki Min

doi:10.1016/j.electacta.2014.09.021

Enhanced electrocatalytic activity of plasma functionalized multi-walled carbon nanotube-entrapped poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) photocathode

Yong Hoon Rhee, Dong June Ahn, Min Jae Ko, Hwa Young Jin, Joon Hyung Jin, Nam Ki Min

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

17 Citations (Scopus)

Abstract

A composite of poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and multi-walled carbon nanotubes (MWNTs) was electrochemically polymerized on a fluorine-doped tin oxide (FTO) substrate and used as a photocathode for a dye-sensitized solar cell. The MWNTs were previously O₂ plasma treated and simultaneously entrapped while the PEDOT:PSS film was electropolymerized. The resulting plasma-functionalized MWNT-entrapped PEDOT:PSS composite showed enhanced electrocatalytic activity for the reduction of I₃^- to I^-, this was confirmed by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and incident photon-to-current conversion efficiency (IPCE) measurements. An improved energy conversion efficiency by about 13.9% was observed in optimized conditions as compared to a platinized FTO-based photocathode.

Original language	English
Pages (from-to)	68-72
Number of pages	5
Journal	Electrochimica Acta
Volume	146
DOIs	https://doi.org/10.1016/j.electacta.2014.09.021
Publication status	Published - 2014 Nov 10

Bibliographical note

Funding Information:
This work was supported by a grant from Korea University (2014).

Publisher Copyright:
© 2014 Elsevier Ltd.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

PEDOT:PSS photocathode
dye-sensitized solar cell
electrocatalytic activity
nanotubes
oxygen plasma-functionalized carbon
photoelectrochemical cell

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

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10.1016/j.electacta.2014.09.021

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title = "Enhanced electrocatalytic activity of plasma functionalized multi-walled carbon nanotube-entrapped poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) photocathode",

abstract = "A composite of poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and multi-walled carbon nanotubes (MWNTs) was electrochemically polymerized on a fluorine-doped tin oxide (FTO) substrate and used as a photocathode for a dye-sensitized solar cell. The MWNTs were previously O2 plasma treated and simultaneously entrapped while the PEDOT:PSS film was electropolymerized. The resulting plasma-functionalized MWNT-entrapped PEDOT:PSS composite showed enhanced electrocatalytic activity for the reduction of I3- to I-, this was confirmed by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and incident photon-to-current conversion efficiency (IPCE) measurements. An improved energy conversion efficiency by about 13.9% was observed in optimized conditions as compared to a platinized FTO-based photocathode.",

keywords = "PEDOT:PSS photocathode, dye-sensitized solar cell, electrocatalytic activity, nanotubes, oxygen plasma-functionalized carbon, photoelectrochemical cell",

author = "Rhee, {Yong Hoon} and Ahn, {Dong June} and Ko, {Min Jae} and Jin, {Hwa Young} and Jin, {Joon Hyung} and Min, {Nam Ki}",

note = "Funding Information: This work was supported by a grant from Korea University (2014). Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2014",

month = nov,

day = "10",

doi = "10.1016/j.electacta.2014.09.021",

language = "English",

volume = "146",

pages = "68--72",

journal = "Electrochimica Acta",

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AU - Rhee, Yong Hoon

AU - Ahn, Dong June

AU - Ko, Min Jae

AU - Jin, Hwa Young

AU - Jin, Joon Hyung

AU - Min, Nam Ki

PY - 2014/11/10

Y1 - 2014/11/10

N2 - A composite of poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and multi-walled carbon nanotubes (MWNTs) was electrochemically polymerized on a fluorine-doped tin oxide (FTO) substrate and used as a photocathode for a dye-sensitized solar cell. The MWNTs were previously O2 plasma treated and simultaneously entrapped while the PEDOT:PSS film was electropolymerized. The resulting plasma-functionalized MWNT-entrapped PEDOT:PSS composite showed enhanced electrocatalytic activity for the reduction of I3- to I-, this was confirmed by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and incident photon-to-current conversion efficiency (IPCE) measurements. An improved energy conversion efficiency by about 13.9% was observed in optimized conditions as compared to a platinized FTO-based photocathode.

AB - A composite of poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and multi-walled carbon nanotubes (MWNTs) was electrochemically polymerized on a fluorine-doped tin oxide (FTO) substrate and used as a photocathode for a dye-sensitized solar cell. The MWNTs were previously O2 plasma treated and simultaneously entrapped while the PEDOT:PSS film was electropolymerized. The resulting plasma-functionalized MWNT-entrapped PEDOT:PSS composite showed enhanced electrocatalytic activity for the reduction of I3- to I-, this was confirmed by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and incident photon-to-current conversion efficiency (IPCE) measurements. An improved energy conversion efficiency by about 13.9% was observed in optimized conditions as compared to a platinized FTO-based photocathode.

KW - PEDOT:PSS photocathode

KW - dye-sensitized solar cell

KW - electrocatalytic activity

KW - nanotubes

KW - oxygen plasma-functionalized carbon

KW - photoelectrochemical cell

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Enhanced electrocatalytic activity of plasma functionalized multi-walled carbon nanotube-entrapped poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) photocathode

Abstract

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