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標題: A high performance dye-sensitized solar cell with a novel nanocomposite film of PtNP/MWCNT on the counter electrode
作者: Huang, K.C.
Wang, Y.C.
Dong, R.X.
Tsai, W.C.
Tsai, K.W.
Wang, C.C.
Chen, Y.H.
Vittal, R.
Lin, J.J.
Ho, K.C.
關鍵字: carbon nanotubes;fabrication
Project: Journal of Materials Chemistry
期刊/報告no:: Journal of Materials Chemistry, Volume 20, Issue 20, Page(s) 4067-4073.
An imide-functionalized material, poly(oxyethylene)-segmented polymer, was synthesized from the reaction of poly(oxyethylene) diamine of 2000 g mol(-1) M(w) 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 (J(SC)) and power-conversion efficiency (eta) 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.
ISSN: 0959-9428
DOI: 10.1039/b925245b
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