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Issue 20, 2010
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A high performance dye-sensitized solar cell with a novel nanocomposite film of PtNP/MWCNT on the counter electrode

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Abstract

An imide-functionalized material, poly(oxyethylene)-segmented polymer, was synthesized from the reaction of poly(oxyethylene)diamine of 2000 g mol−1Mw and 4,4′-oxydiphthalic anhydride and used to disperse hybrid nanomaterials of platinum nanoparticles and multi-wall carbon nanotubes (PtNP/MWCNT). The composite material was spin-coated into film and further prepared as the counter electrode (PtNP/MWCNT-CE) for a dye-sensitized solar cell (DSSC). The short-circuit current density (JSC) and power-conversion efficiency (η) of the DSSC with PtNP/MWCNT-CE were found to be 18.01 ± 0.91 mA cm−2 and 8.00 ± 0.23%, respectively, while the corresponding values were 14.62 ± 0.19 mA cm−2 and 6.92 ± 0.07% for a DSSC with a bare platinum counter electrode (Pt-CE). The presence and distribution of PtNP/MWCNT on the CE were characterized by using scanning electron microscopy (SEM), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD). The attachment of PtNPs on MWCNTs was observed by transmission electron microscopy (TEM). Cyclic voltammetry (CV), incident-photo-to-current efficiency (IPCE) and electrochemical impedance spectra (EIS) were correlated to explain the efficacy of this nanocomposite system.

Graphical abstract: A high performance dye-sensitized solar cell with a novel nanocomposite film of PtNP/MWCNT on the counter electrode

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Publication details

The article was received on 02 Dec 2009, accepted on 12 Feb 2010 and first published on 22 Mar 2010


Article type: Paper
DOI: 10.1039/B925245B
J. Mater. Chem., 2010,20, 4067-4073

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    A high performance dye-sensitized solar cell with a novel nanocomposite film of PtNP/MWCNT on the counter electrode

    K. Huang, Y. Wang, R. Dong, W. Tsai, K. Tsai, C. Wang, Y. Chen, R. Vittal, J. Lin and K. Ho, J. Mater. Chem., 2010, 20, 4067
    DOI: 10.1039/B925245B

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