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Effective Way To Enhance the Electrode Performance of Multiwall Carbon Nanotube and Poly(3,4-ethylenedioxythiophene): Poly(styrene sulfonate) Composite Using HCl-Methanol Treatment

Title
Effective Way To Enhance the Electrode Performance of Multiwall Carbon Nanotube and Poly(3,4-ethylenedioxythiophene): Poly(styrene sulfonate) Composite Using HCl-Methanol Treatment
Authors
Yun, Dong-JinJeong, Yong JinRa, HyeminKim, Jung-MinPark, Jong HwanPark, SungHoonAn, Tae KyuSeol, MinsuPark, Chan EonJang, JaeyoungChung, Dae Sung
DGIST Authors
Chung, Dae Sung
Issue Date
2016-05
Citation
Journal of Physical Chemistry C, 120(20), 10919-10926
Type
Article
Article Type
Article
Keywords
SENSITIZED SOLAR-CELLSPEDOT-PSS FILMSCOUNTER-ELECTRODEACID TREATMENTTRANSPARENTOXIDATIONFABRICATIONDISPERSIONSOLVENTSCONTACT
ISSN
1932-7447
Abstract
In this study, the electrode performance of composite films composed of highly conductive multiwalled carbon nanotubes (MWCNTs) and poly(3,4-ethylenedioxythiophene) polymerized with poly(4-styrenesulfonate) (PEDOT:PSS) are improved with the use of HCl-methanol (HCl-met) treatment. The HCl-met treatment affects film properties, including surface morphology, optical transmittance, work function (Î), and electrical conductivity, which are investigated using various kinds of MWCNT/PEDOT:PSS composite systems. As a result of the HCl-met treatment, all MWCNT/PEDOT:PSS films undergo considerable changes in molecular ratio and arrangement between PEDOT and PSS, but their MWCNTs have no chemical/structural transitions. This in turn enhances the electrical conductivity and catalytic activity of the MWCNT/PEDOT:PSS films without changing their other properties. Furthermore, because of these effects, the HCl-met treatment brings about noticeable enhancements in performance as the source/drain electrode in an organic thin-film transistor and as the catalytic counter electrode in a dye-sensitized solar cell. © 2016 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/6470
DOI
10.1021/acs.jpcc.6b01747
Publisher
American Chemical Society
Related Researcher
Files:
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Collection:
Department of Energy Science and EngineeringPolymer Energy Materials Lab1. Journal Articles


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