Electrochemical properties of dye-sensitized solar cells fabricated with PVDF-type polymeric solid electrolytes

Tsuyoshi Asano, Takaya Kubo, Yoshinori Nishikitani

研究成果: Article

100 引用 (Scopus)

抄録

We have already proposed a poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymeric solid electrolyte (PSE) film for dye-sensitized solar cells (DSSCs). The employment of the PSE film, however, almost always accompanies with decrease in short-circuit current density (J sc). We then studied electrochemical properties on the PSE-based and liquid electrolyte-based DSSCs to clarify the reason why the conversion efficiency is lower in the former than in the latter. The diffusion coefficient of I3 - and the cell gap of DSSCs were found out to play a key role to increase J sc. In particular, the stronger cell-gap dependence was observed in the PSE-based DSSC than in the liquid electrolyte-based DSSC. This indicates that the design of DSSC structure is quite important to achieve the higher conversion efficiency in the PSE-based DSSC. We confirmed that the J sc of a PSE-based DSSC with a 20 μm cell gap is turned out to be about 97% of the J sc of a liquid electrolyte-based DSSC.

元の言語English
ページ(範囲)111-115
ページ数5
ジャーナルJournal of Photochemistry and Photobiology A: Chemistry
164
発行部数1-3
DOI
出版物ステータスPublished - 2004 6 1
外部発表Yes

Fingerprint

Solid electrolytes
solid electrolytes
Electrochemical properties
solar cells
dyes
Electrolytes
electrolytes
Conversion efficiency
Liquids
liquids
cells
polyvinylidene fluoride
Dye-sensitized solar cells
short circuit currents
Short circuit currents
Current density
diffusion coefficient
current density

ASJC Scopus subject areas

  • Bioengineering
  • Physical and Theoretical Chemistry

これを引用

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title = "Electrochemical properties of dye-sensitized solar cells fabricated with PVDF-type polymeric solid electrolytes",
abstract = "We have already proposed a poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymeric solid electrolyte (PSE) film for dye-sensitized solar cells (DSSCs). The employment of the PSE film, however, almost always accompanies with decrease in short-circuit current density (J sc). We then studied electrochemical properties on the PSE-based and liquid electrolyte-based DSSCs to clarify the reason why the conversion efficiency is lower in the former than in the latter. The diffusion coefficient of I3 - and the cell gap of DSSCs were found out to play a key role to increase J sc. In particular, the stronger cell-gap dependence was observed in the PSE-based DSSC than in the liquid electrolyte-based DSSC. This indicates that the design of DSSC structure is quite important to achieve the higher conversion efficiency in the PSE-based DSSC. We confirmed that the J sc of a PSE-based DSSC with a 20 μm cell gap is turned out to be about 97{\%} of the J sc of a liquid electrolyte-based DSSC.",
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author = "Tsuyoshi Asano and Takaya Kubo and Yoshinori Nishikitani",
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AU - Asano, Tsuyoshi

AU - Kubo, Takaya

AU - Nishikitani, Yoshinori

PY - 2004/6/1

Y1 - 2004/6/1

N2 - We have already proposed a poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymeric solid electrolyte (PSE) film for dye-sensitized solar cells (DSSCs). The employment of the PSE film, however, almost always accompanies with decrease in short-circuit current density (J sc). We then studied electrochemical properties on the PSE-based and liquid electrolyte-based DSSCs to clarify the reason why the conversion efficiency is lower in the former than in the latter. The diffusion coefficient of I3 - and the cell gap of DSSCs were found out to play a key role to increase J sc. In particular, the stronger cell-gap dependence was observed in the PSE-based DSSC than in the liquid electrolyte-based DSSC. This indicates that the design of DSSC structure is quite important to achieve the higher conversion efficiency in the PSE-based DSSC. We confirmed that the J sc of a PSE-based DSSC with a 20 μm cell gap is turned out to be about 97% of the J sc of a liquid electrolyte-based DSSC.

AB - We have already proposed a poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymeric solid electrolyte (PSE) film for dye-sensitized solar cells (DSSCs). The employment of the PSE film, however, almost always accompanies with decrease in short-circuit current density (J sc). We then studied electrochemical properties on the PSE-based and liquid electrolyte-based DSSCs to clarify the reason why the conversion efficiency is lower in the former than in the latter. The diffusion coefficient of I3 - and the cell gap of DSSCs were found out to play a key role to increase J sc. In particular, the stronger cell-gap dependence was observed in the PSE-based DSSC than in the liquid electrolyte-based DSSC. This indicates that the design of DSSC structure is quite important to achieve the higher conversion efficiency in the PSE-based DSSC. We confirmed that the J sc of a PSE-based DSSC with a 20 μm cell gap is turned out to be about 97% of the J sc of a liquid electrolyte-based DSSC.

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KW - Electrolyte

KW - Polymeric solid electrolyte

KW - PVDF

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