成果報告書詳細
管理番号20110000000602
タイトル*平成22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/色素増感太陽電池の特徴を活かした用途開発と、それに必要な要素技術の研究開発
公開日2011/7/30
報告書年度2010 - 2010
委託先名アイシン精機株式会社 株式会社豊田中央研究所
プロジェクト番号P09026
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:1.研究開発の内容及び成果等 サブテーマ(12) (12)-1 「多色化対応の色素の選定、実用性の評価」(株式会社豊田中央研究所) (平成22年度第1四半期~第4四半期実施) 色素増感太陽電池の特徴として、従来の半導体系太陽電池に比べて、色素の種類に応じて、カラフルな太陽電池を実現できる利点がある。ところが、屋外で使用する環境において、長期間の耐久性を含めた実用性能を評価されている色素としては、Ruビピリジン錯体を主体とした典型的な赤色色素に限定される。 カラフル性を生かすためには、従来のRuビピリジン錯体以外のRu錯体を含む様々な有機系色素の適用も可能性があるが、特に、有機色素については、太陽電池としての屋外暴露時の耐久性は明らかにされていない。
英文要約Title: Funding Program for World-Leading Innovative R&D on Science and Technology / Development of organic photovoltaics toward a low-carbon society / Development of elemental technologies and practical applications contained features of dye-sensitized solar cells
(FY2010-FY2011) FY2010 Annual Report
AISIN Seiki Co., Ltd
Toyota Central R&D Labs., Inc.
The only Ru complexs, Z907, N719 etc. have been evaluated for dye-sensitized solar cells (DSCs) having the long-term stability for outdoor use. The organic dye has an advantage for more colorful design and higher performance cell. However, the long-term stability for outdoor use the cell using organic dye has not been reported yet. Therefore, we have studied the practical performance including the durability of DSCs using organic dyes to clarify the relation between the molecular structure of dye and the durability of the cells. Now, we have studied the cell performance using the red or reddish brown dyes. Specifically, the Ru complex (Z907), the three kinds of indoline dyes (D149, D205, and D358) and carbazole dye (MK2) were carefully tested. The conversion efficiency of the cell using carbazole dye (MK2) and the indoline dye (D358) were 1.1 times higher than that of the Ru complex (Z907). MK2 dye and D358 dye showed the higher energy gap (ΔG) between LUMO of the dye and the conduction band of TiO2 than that of Z907 dye. The higher short-circuit photocurrent (Jsc) of MK2 dye compared to that of the Z907 dye may were due to the larger ΔG. The durability of the cells, using Pt particle on the transparent conductive oxide (TCO) glass as the counter electrode, and solvent-free ionic liquid electrolyte, under continuous 1sun light soaking test at 60 degrees C, depend on the kind of the dyes. The organic dye showed the lower durability after light soaking test than the Ru complex, Z907. The durability of the cells were higher in this order, D205
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