A highly efficient dye-sensitized solar cell with a platinum nanoflowers counter electrode

Tien Lin Hsieh, Hsin Wei Chen, Chung-Wei Kung, Chun Chieh Wang, R. Vittal, Kuo Chuan Ho

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

This study applied the pulse reversal electrodeposition (PRE) technique to deposit a platinum film having a nanoflowers (PtNFs) structure onto an indium tin oxide (ITO) glass. The physical characteristics and electro-catalytic abilities of the PtNF-CEs were analyzed by energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) patterns, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). A double layer theory and a crystal facet formation mechanism are used to explain the catalytic abilities of the PtNFs. Scanning electron microscopy (SEM) images depict a dramatic transformation in the surface structure of the Pt clusters. The ITO glass with the PtNFs was used as the counter electrode (CE) of a dye-sensitized solar cell (DSSC). The DSSC assembled with the as-prepared PtNF-CE exhibits a high power conversion efficiency (η) of 7.74%, while the cell with an additional thin (2 nm) sputtered layer of platinum on the PtNF film shows much higher η of 8.13%, both at 1 sun conditions. The performances of the DSSCs are further substantiated by the data from electrochemical impedance spectroscopy (EIS) and UV-Vis reflectance spectra.

Original languageEnglish
Pages (from-to)5550-5559
Number of pages10
JournalJournal of Materials Chemistry
Volume22
Issue number12
DOIs
Publication statusPublished - 2012 Mar 28

Fingerprint

Nanoflowers
Platinum
Electrodes
ITO glass
Electrochemical impedance spectroscopy
Dye-sensitized solar cells
Electrodeposition
Surface structure
Sun
Diffraction patterns
Conversion efficiency
Cyclic voltammetry
Energy dispersive spectroscopy
Deposits
X ray diffraction
Crystals
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

Hsieh, Tien Lin ; Chen, Hsin Wei ; Kung, Chung-Wei ; Wang, Chun Chieh ; Vittal, R. ; Ho, Kuo Chuan. / A highly efficient dye-sensitized solar cell with a platinum nanoflowers counter electrode. In: Journal of Materials Chemistry. 2012 ; Vol. 22, No. 12. pp. 5550-5559.
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abstract = "This study applied the pulse reversal electrodeposition (PRE) technique to deposit a platinum film having a nanoflowers (PtNFs) structure onto an indium tin oxide (ITO) glass. The physical characteristics and electro-catalytic abilities of the PtNF-CEs were analyzed by energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) patterns, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). A double layer theory and a crystal facet formation mechanism are used to explain the catalytic abilities of the PtNFs. Scanning electron microscopy (SEM) images depict a dramatic transformation in the surface structure of the Pt clusters. The ITO glass with the PtNFs was used as the counter electrode (CE) of a dye-sensitized solar cell (DSSC). The DSSC assembled with the as-prepared PtNF-CE exhibits a high power conversion efficiency (η) of 7.74{\%}, while the cell with an additional thin (2 nm) sputtered layer of platinum on the PtNF film shows much higher η of 8.13{\%}, both at 1 sun conditions. The performances of the DSSCs are further substantiated by the data from electrochemical impedance spectroscopy (EIS) and UV-Vis reflectance spectra.",
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A highly efficient dye-sensitized solar cell with a platinum nanoflowers counter electrode. / Hsieh, Tien Lin; Chen, Hsin Wei; Kung, Chung-Wei; Wang, Chun Chieh; Vittal, R.; Ho, Kuo Chuan.

In: Journal of Materials Chemistry, Vol. 22, No. 12, 28.03.2012, p. 5550-5559.

Research output: Contribution to journalArticle

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