成果報告書詳細
管理番号20140000000760
タイトル*平成25年度中間年報 次世代材料評価基盤技術開発 (2)有機薄膜太陽電池材料の評価基盤技術開発
公開日2015/1/31
報告書年度2013 - 2013
委託先名次世代化学材料評価技術研究組合
プロジェクト番号P10029
部署名電子・材料・ナノテクノロジー部
和文要約
英文要約The major target of this project is to develop the chemical materials evaluation technology for organic photovoltaic (OPV) device.
The "reference organic thin film solar cells and devices" are required to establish the standard evaluation technology. The reference device is defined to be a reference cell with encapsulation. As a mid-term target of this project until the end of FY2015, we will complete the formation of reference cells. In addition to the glass substrates flexible film will be applied to them. The candidates of OPV reference device structure are classified into a bulk-hetero junction type, a vacuum evaporation type and a perovskite type. In FY2013 we have started to examine the issues of these cell fabrication processes using glass substrate and tried to improve the reproducibility and cell performance by the joint work of Yamagata Univ. and CEREBA. The average power conversion efficiency of 3.8% was achieved for the bulk hetero junction reference cell with the structure of glass/ITO/PEDOT:PSS/P3HT:ICBA/Al.
One of the main targets of this project is to establish the evaluation technology of reliability for organic thin film devices. Long term stability of device performance will be influenced by thermal, optical, chemical, electrical and mechanical stresses. Extracting several stress factors, we have designed and introduced a facility to test and analyze device durability. The OPV advisory committee is planned to start in FY2014. The appropriate testing condition will be discussed there. According to the advices by this committee we will establish the evaluation technology of reliability.
Basic analytical technology to elucidate the carrier dynamics will be developed in this project. A joint work by Kyushu group and CEREBA applied the Thermally Stimulated Current (TSC) measurement method to P3HT/C60PCBM bulk hetero junction device. A joint work by Kyoto Univ. group and CEREBA has developed the method to estimate the carrier generation and recombination density in similar bulk hetero junction device by transient photo-absorption spectroscopy, transient photo-voltage, and transient photocurrent.
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