成果報告書詳細
管理番号20130000000531
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(シャープ株式会社)
公開日2014/5/9
報告書年度2012 - 2012
委託先名シャープ株式会社
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 emission society / Development of the manufacturing technology for low-cost dye sensitized solar cells and actual proof test of power generation
(FY2010-FY2013) FY2012 Annual Report
Sharp Corporation

The purpose of this research is to develop a dye-sensitized solar cells (DSCs) module structure without transparent conducting oxide (TCO) glass. We investigated a TCO-less cell structure (c-TCO), and analyzed that structure. In that investigation, c-TCO cells were constructed with glass, TiO2/dye and electrode as a cathode, electrolyte and counter electrode. The cathode electrode was layered on porous TiO2 in the c-TCO case. In order to fabricate TCO-less modules, we chose a monolithic type TCO-less structure, because of the expected easy fabrication process. The monolithic-type TCO-less modules were constructed with glass, TiO2/dye and electrode as a cathode, insulating layer, counter electrode and electrolyte. First of all, we attempted to fabricate monolithic type TCO-less cells (m-TCOlc) by using fabrication conditions similar to c-TCO, except for the insulating layer and counter electrode fabrication conditions. Compared to c-TCO, short-circuit current density (Jsc) of m-TCOlc was extremely low, because of the decrease in amount of adsorbed dye and the increase of the cathode electrode resistance. In order to improve the cathode electrode resistance, the thickness of the electrode was changed. While this allowed decreasing the cathode electrode resistance, the cathode electrode layer’s pore-size measured by scanning electron microscope also decreased. From the FY2011 c-TCO investigation results, we had found the effective laser scribe process conditions. Therefore, that process was attempted with m-TCOlc as the next step. Finally, by using these techniques, we managed to improve the Jsc degradation ratio for m-TCOlc up to only 30% when compared to c-TCO.
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