Photovoltaic cells of fullerene / poly-phenylenevinylene derivative prepared by spray deposition

T. Ishikawa, M. Nakamura, K. Fujita, T. Tsutsui

研究成果: ジャーナルへの寄稿会議記事査読


The spray deposition method1) has been developed as a new way of polymer ultra-thin film preparation for organic optoelectronic devices such as an organic photovoltaic cell (OPC). In this method, a highly diluted solution of an organic material is nebulized into air and concentrated under a controlled evaporation condition. The resulting aerosol is transported by a carrier gas and deposited onto a solid substrate. This method has substantial advantages that an almost insoluble and non-evaporative material can be fabricated into a thin film, and that a separate area coating and layer-by-layer structure of polymer materials can be preformed. An OPC was prepared from highly diluted THF solutions (below 1 ppm) of fullerene / poly-phenylenevinylene (PPV) derivative mixture. The device configulation, ITO / PEDOT-PSS / fullerene-PPV / LiF / Al, is known as a bulk hetero-junction PC. By control of temperature, we obtained homogeneous active layer by spray deposition. In addition, we can achieve power conversion efficiency of 0.63% using the active layer consist of fullerene: PPV(1:1). This method has significant potential to provide a structural control of the active layer and to reduce the cost of the OPCs drastically in spite that the power conversion efficiency is slightly lower than a PC prepared in same ratio by spin-coating.

ジャーナルProceedings of SPIE - The International Society for Optical Engineering
出版ステータス出版済み - 2004
イベントOrganic Photovoltaics IV - San Diego, CA, 米国
継続期間: 8月 7 20038月 8 2003

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学


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