Dye-sensitized solar cells fabricated with novel polymeric solid electrolyte films

Tsuyoshi Asano*, Soichi Uchida, Takaya Kubo, Yoshinori Nishikitani

*この研究の対応する著者

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

The performance of dye-sensitized solar cells (DSSCs) was studied by examining properties of the polymeric solid electrolyte (PSE) such as ionic conductivity, melting point, etc. Electrochemical reactions taking place inside the DSSCs were also closely studied using electrical impedance spectroscopy. The following three findings were obtained: 1) the short-circuit current density (Jsc) of a DSSC decreases with the PVDF-HFP-based polymer content of the PSE, chiefly due to the decrease in the diffusion coefficient of I3; 2) we confirmed that a PSE/Pt interface was established as well as the electrolyte solution/Pt interface; and 3) the polymer content should be as low as possible in order to achieve a higher Jsc. The trade-off for decreasing the polymer content is the diminishment of the PSE tensile strength at high temperatures because the melting point of the PSE drops. Taking both factors into account, the preferable polymer content was found to be between 25 and 30 mass%. In this polymer content range, the Jsc of a PSE-based DSSC is about 80% that of a solution-based DSSC.

本文言語English
ホスト出版物のタイトルProceedings of the 3rd World Conference on Photovoltaic Energy Conversion
編集者K. Kurokawa, L.L. Kazmerski, B. McNeils, M. Yamaguchi, C. Wronski
ページ212-215
ページ数4
A
出版ステータスPublished - 2003
外部発表はい
イベントProceddings of the 3rd World Conference on Photovoltaic Energy Conversion - Osaka
継続期間: 2003 5 112003 5 18

Other

OtherProceddings of the 3rd World Conference on Photovoltaic Energy Conversion
CityOsaka
Period03/5/1103/5/18

ASJC Scopus subject areas

  • 工学(全般)

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