成果報告書詳細
管理番号20130000000530
タイトル*平成24年度中間年報 最先端研究開発支援プログラム 低炭素社会に資する有機系太陽電池の開発 低コスト色素増感太陽電池の製造と発電実証試験(太陽誘電株式会社)
公開日2014/5/9
報告書年度2012 - 2012
委託先名太陽誘電株式会社
プロジェクト番号P09026
部署名新エネルギー部
和文要約
英文要約Funding Program for World-Leading Innovative R&D on Science and Technology /
Development of organic photovoltaics toward a low-carbon society /
Development of the manufacturing technology of low-cost dye sensitized solar cell and actual proof test of power generation
(FY2010-FY2013) FY2012 Annual Report
TAIYO YUDEN CO.,LTD.


 Dye sensitized solar cells(DSCs)which have numerous advantages to other solar cells are expected as a next generated solar cells. However, there are problems on conversion efficiency, reliability, cost, and it is difficult for DSC to replace a crystalline silicon solar cells. Therefore, we developed low cost and useful DSCs with plastic-substrate as a next generated photovoltaic, and the following results are obtained.
 We have exploited the optical disc type dye sensitized solar cell using plastic film, this cell is called as DSC-R. In this year we firstly evaluated old DSC-R to investigate a degradation factor. As a result evaluation, it is suggested that the main degradation factors are both the exfoliation of TiO2 layer from ITO interface and disconnection of dye from TiO2 particles. About dye, it is shown that a lesser-polarity MK-2 dye made the dissolution to eluent decreased, and the lifetime of DSC-R extended. On the other hand, the exfoliation of TiO2 layer was decreased by several improvement of TiO2 ink. The addition of resin influenced to both power generation efficiency and adhesion of TiO2 layer. Moreover titanium alkoxide was used as additive agent to improve the adhesion of TiO2 layer conspicuously. As a result of examination of additive agent, the lifetime of DSC-R extended till about four months.
 We designed 4 in-series DSC-R cell to reduce the influence of internal resistance of prototype DSC-R. As a result of I-V evaluation, the 4 in-series DSC-R open-circuit voltage showed 1.98V. It is expected that a 4 in-series DSC-R cell corresponds to various applications. The patent application of basic structure for 4 in-series DSC-R cell was performed. The future verification for multi in-series DSC-R cell and subject extraction are advanced.
 In the prototype DSC-R, the 0.1mm-thickness titanium plate is used as positive electrode. As the start to cost reduction of future DSC-R, we tried to decrease the resource of positive electrode using thinner titanium plate. We finished principle verification of new DSC-R in which either 0.05mm-thickness or 0.025mm-thickness titanium plate was used, lighter DSC-R was made. These trials make the total thickness of DSC-R decreased to half, the utility which is one of the main concept to DSC-R will be conspicuous.
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