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Polymers 2017, 9(7), 271; https://doi.org/10.3390/polym9070271

Poly(3,3-dibenzyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine)/Platinum Composite Films as Potential Counter Electrodes for Dye-Sensitized Solar Cells

1
Graduate School of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan
2
Department of Electronic Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan
3
Graduate School of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan
4
Department of Information and Electronic Commerce Management, TransWorld University, Yunlin 64063, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Chih-Feng Huang
Received: 28 April 2017 / Revised: 20 June 2017 / Accepted: 3 July 2017 / Published: 7 July 2017
(This article belongs to the Special Issue Functionally Responsive Polymeric Materials)
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Abstract

In this study, poly(3,3-dibenzyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine)/platinum composite films (PProDOT-Bz2/Pt) were used as counter electrodes (CEs) in dye-sensitized solar cells (DSSCs). The composite films were prepared on fluorine-doped tin oxide (FTO) glass by radio frequency (RF) sputtering to deposit platinum (Pt) for 30 s. Afterwards, PProDOT-Bz2 was deposited on the Pt–FTO glass via electrochemical polymerization. The electron transfer process of DSSCs was investigated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The DSSCs with 0.05 C/cm2 PProDOT-Bz2-Pt composite films showed an open circuit voltage (Voc) of 0.70 V, a short-circuit current density (Jsc) of 7.27 mA/cm2, and a fill factor (F.F.) of 68.74%. This corresponded to a photovoltaic conversion efficiency (η) of 3.50% under a light intensity of 100 mW/cm2. View Full-Text
Keywords: dye-sensitized solar cells; electrochemical impedance spectroscopy; conducting polymer; photovoltaic conversion efficiency dye-sensitized solar cells; electrochemical impedance spectroscopy; conducting polymer; photovoltaic conversion efficiency
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Chou, J.-C.; Huang, Y.-C.; Wu, T.-Y.; Liao, Y.-H.; Lai, C.-H.; Chu, C.-M.; Lin, Y.-J. Poly(3,3-dibenzyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine)/Platinum Composite Films as Potential Counter Electrodes for Dye-Sensitized Solar Cells. Polymers 2017, 9, 271.

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