成果報告書詳細
管理番号20120000000532
タイトル*平成23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/高効率有機薄膜太陽電池の作製(有機薄膜太陽電池の耐久性予測手法と高耐久性素子の開発)
公開日2013/1/18
報告書年度2011 - 2011
委託先名住友化学株式会社
プロジェクト番号P09026
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:1. 研究開発の内容及び成果等
本研究では、サブテーマ14のうち、「有機薄膜太陽電池の耐久性予測手法と高耐久性素子の開発」を実施する。有機薄膜太陽電池の耐久性評価手法を確立し、高耐久性素子を開発する。有機薄膜太陽電池は、シリコン系などの太陽電池とは全く異なる材料や構造のため、劣化モードはシリコン系太陽電池と大きく異なり、新たに耐久性評価法を確立する必要がある。そのためには、有機薄膜太陽電池の劣化機構の解明が必要である。これらは産業技術総合研究所、京都大学等のプロジェクト参加メンバーと協力して実施する。得られた劣化機構に関する知見から劣化モードを特定し、加速試験の条件を選定して耐久性評価法の要素技術を確立する。また得られた要素技術を活用し、高耐久性な素子構造を提案する。
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: Pioneering Next Generation Solar Cell Technologies and Industries via Multi-manufacturer Cooperation (Sub-theme: 14-1「Development of Prediction Method of the Stability of Organic Thin-film Solar Cell and Solar Cell with High Stability」in the theme of 「Fabrication of High Efficiency Organic Thin-film Solar Cell」) (FY2010-FY2011) FY2011 Annual Report
Improvement of stability of organic thin-film solar cell (OPV) is very important for the commercialization. In addition, to establish the acceleration test condition to predict the stability of OPV is also important because the test condition to check the stability such as JIS standard for silicon solar cell has already been established but the architecture of OPV is very different from silicon solar cell so the same test condition is difficult to apply to OPV. From the background, we are in charge of establishing the acceleration test condition for OPV and improving the stability of OPV in this project. Our target in this project is (1) to establish the acceleration test condition which shows good accordance with outdoor stability test (2) to analysis the degradation mechanism and obtain the strategy to improve stability (3) to propose the high stability OPV having more than 5 years stability by utilizing (1) and (2). As a result of trial to improve the stability by the selection of cell component, we succeeded to get relatively stable OPV this year. From the background, we started the accelerated stability test using xenon weather-ometer (XWOM)(condition: 1SUN, 65 degC)(JIS C8938) and outdoor stability test by using the relatively stable cells. As a result, we observed the good relationship between those stability tests and found that it is possible to predict the life of outdoor stability test by the result of accelerated stability test using XWOM. In addition, it was also found that 100 hours of the accelerated stability test using XWOM correspond to one month of outdoor stability test. We are also trying to improve the stability by the selection of the material of cell component. In the last year we found that the stability is improved by using silver as the negative electrode, by introducing the buffer layer of negative electrode such as TiOx etc., by applying the high Tg polymer for the active layer, by using MoO3 as the buffer layer of positive electrode or by applying the UV cut filter. In this year we tried the combination of these components to get much better stability. As a result, we achieved 80% retention of efficiency after 2000hr(correspond to 2 years as outdoor stability) in the accelerated stability test using XWOM by the cell using the combination of silver electrode, the high Tg polymer(Tg>300degC) for the active layer and UV cut filter as the cell component.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る