Rhee, Yong Hoon Ahn, Dong June Ko, Min Jae Jin, Hwa-Young Jin, Joon-Hyung Min, Nam Ki 2024-01-20T08:32:10Z 2024-01-20T08:32:10Z 2022-01-25 2014-11 0013-4686 https://pubs.kist.re.kr/handle/201004/126149 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 (FM) substrate and used as a photocathode for a dye-sensitized solar cell. The MWNTs were previously O-2 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 I-3 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. (C) 2014 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD Enhanced electrocatalytic activity of plasma functionalized multiwalled carbon nanotube-entrapped poly(3,4-ethylendioxythiophene): poly(styrene sulfonate) photocathode Article 10.1016/j.electacta.2014.09.021 1 ELECTROCHIMICA ACTA, v.146, pp.68 - 72 ELECTROCHIMICA ACTA 146 68 72 N scie scopus 000345226100010 2-s2.0-84907888777 Electrochemistry Electrochemistry Article SENSITIZED SOLAR-CELLS FREE COUNTER ELECTRODE POLYMER-FILMS TIN OXIDE IMPEDANCE POLY(3,4-ETHYLENEDIOXYTHIOPHENE) RECOMBINATION DIFFUSION CATALYST SYSTEMS dye-sensitized solar cell electrocatalytic activity oxygen plasma-functionalized carbon nanotubes PEDOT:PSS photocathode photoelectrochemical cell